Fri Sep 02, 2022 8:49 am

Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
 
Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
Fri Sep 02, 2022 8:49 am linkquote
whodatschrome wrote:
Thanks for looking out John. I saw the ad last night. The only bummer is I bought the NSU for $20. So absolutely anything I end up buying for it (new or used) will cost at least double my initial purchase price!
Now that you put it that way….
Fri Sep 02, 2022 9:15 am

Hooked
Parmakit Primavera -74, Polini Primavera -68, Stock 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: 22 Jun 2022
Posts: 388
Location: Finland
 
Hooked
Parmakit Primavera -74, Polini Primavera -68, Stock 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: 22 Jun 2022
Posts: 388
Location: Finland
Fri Sep 02, 2022 9:15 am linkquote
Then I'll suggest you fit a motor from a chainsaw. The bigger the better

Cheap, small, has a centrifugal clutch and power can be improved with a custom exhaust that you clearly have plenty of space for. "Just" fab a custom fork with engine mounts and salvage a wheel + hub from somewhere and drive with a chain.
Fri Sep 02, 2022 9:22 am

Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
 
Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
Fri Sep 02, 2022 9:22 am linkquote
lx motor - this has been up for weeks, offer a lowball

https://sandiego.craigslist.org/esd/mpo/d/el-cajon-wrecked-vespa-2013-s150ie-2k-mi/7509720338.html
Fri Sep 02, 2022 10:33 am

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Fri Sep 02, 2022 10:33 am linkquote
sdjohn wrote:
I don't want to mess with a fuel injected engine swap...whatsoever...unless it's been well documented.
Fri Sep 02, 2022 11:54 am

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
Fri Sep 02, 2022 11:54 am linkquote
whodatschrome wrote:
....was thinking that a LX150 engine might fit. I was more interested in swapping in a GT200 engine, but my friend was pretty confident that it would be too wide.
ET/LX motor? you rang?

Kajiit can assist...

GT motor is longer, and you have all the plumbing to deal with. but it's not insurmountable. I don't thing it's much wider, and if it is a little fatter it's not by much. the hang up on the GT motor is parts. besides consumables, if anything goes round and brown it's either difficult to track down or expensive.

but then, if you're that far in and doing that much work at GTS motor becomes mighty tempting...

anyway, let me know if you need some measurements!
Fri Sep 02, 2022 12:41 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Fri Sep 02, 2022 12:41 pm linkquote
greasy125 wrote:
ET/LX motor? you rang?

Kajiit can assist...

GT motor is longer, and you have all the plumbing to deal with. but it's not insurmountable. I don't thing it's much wider, and if it is a little fatter it's not by much. the hang up on the GT motor is parts. besides consumables, if anything goes round and brown it's either difficult to track down or expensive.

but then, if you're that far in and doing that much work at GTS motor becomes mighty tempting...

anyway, let me know if you need some measurements!
To be honest, a 4T TnG engine really doesn't resonate a passion inside of me. I would much rather be shifting gears and belching 2T oil. That being said, having a manual transmission 4T engine would be very easy for me to live with. I'm not really a fan of mixing 2T oil. I like to pull up to a gas station and full up and go.

I suppose a 4T moto engine would need to be water cooled if it were to be hidden behind a pair of side panels? I suppose a swingarm off a kids dirtbike (XR 50?) could easily enough be modified to fit a modified NSU frame?

And how fast of a cruising speed and how much torque does the ET/LX 150 have? I'd be after something that pretty much matches a stock P200. Maybe a Malossi 190 kit will bring up the HP and torque?

Another option is to find a water cooled 2T dirtbike/quad engine that has auto mix oil injection?
Fri Sep 02, 2022 1:02 pm

Ossessionato
62 VBB1T Round Tail W/ leaner sidecar
Joined: 26 Jan 2019
Posts: 3253
Location: california
 
Ossessionato
62 VBB1T Round Tail W/ leaner sidecar
Joined: 26 Jan 2019
Posts: 3253
Location: california
Fri Sep 02, 2022 1:02 pm linkquote
Well, the Clampits wee million airs/ and their truck was built by George Barris ('21 Olds) so seems appropriate you've wrangled a Cummins for it.
I'm a big fan of those motors - having driven xcountry and back, twice, during COVID - and dragged a few tons of machinery around California to boot.

I still wanna c ur three wheeler P get it's day I'm the sun, with some kinda independent a arm front suspension, still.

Fri Sep 02, 2022 1:03 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
Fri Sep 02, 2022 1:03 pm linkquote
I want to say that a stock ET/LX motor has 12hp

adding a 190 kicks it up a notch and there's an up-gear available as well. a stocker will cruise at 55~60 all day long and a 190 will see 65~70 add in an up-gear and 70+

the benefit is that it's a small all inclusive package, and it mounts from the top. install would be super straight forward.

I think a 2T dirt bike engine would be awesome though... or even a reasonably sized 4T thumper just for the sake of shifting gears.
Fri Sep 02, 2022 1:09 pm

Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
 
Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
Fri Sep 02, 2022 1:09 pm linkquote
2t dirt bike sounds appropriate
Fri Sep 02, 2022 1:16 pm

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
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Location: seattle/athens
 
Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
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Fri Sep 02, 2022 1:16 pm linkquote

Is an old Yamaha aircooled 250 & bigger 2 stroke or similar too wide?


Who has something like this DT360 motor laying around?
Fri Sep 02, 2022 1:26 pm

Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3047
Location: Rochester, Minnesota
 
Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3047
Location: Rochester, Minnesota
Fri Sep 02, 2022 1:26 pm linkquote
Maybe something from Suzuki TS series had a 185 dual sport for years. Shifty and two stroke,

https://en.m.wikipedia.org/wiki/Suzuki_TS_series
Fri Sep 02, 2022 3:02 pm

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
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Location: seattle/athens
 
Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
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Location: seattle/athens
Fri Sep 02, 2022 3:02 pm linkquote
Go big or go home.
Quote:
Yamaha SC500 – The Original Japanese Motocross Widowmaker


The Yamaha SC500 was a motocross bike that quickly became world famous for its exceptionally challenging handling. Talented riders could barely tame it, but most others were left either flying off the back or popping accidental power-wheelies every time they crashed into the razor thin power band.
https://silodrome.com/yamaha-sc500/

I am Yamaha biased, had one of these awesomely awful bikes back in the day. Terribly impressive & impressively terrible, but a fantastic hill climber. I guess I'm lucky to still be alive.

Fri Sep 02, 2022 4:32 pm

Ossessionato
62 VBB1T Round Tail W/ leaner sidecar
Joined: 26 Jan 2019
Posts: 3253
Location: california
 
Ossessionato
62 VBB1T Round Tail W/ leaner sidecar
Joined: 26 Jan 2019
Posts: 3253
Location: california
Fri Sep 02, 2022 4:32 pm linkquote
"YAMAHA SC500 SCRAMBLER. Another four-speed brute, this 1973-'74 two-stroke single ran hot, detonated fiercely, stalled constantly and seized regularly. After testing the bike, I noted: "It's gray and black; so is a turkey." Brutally fast, the SC-500 was cursed with state-of-the-dark forks and a pair of chromed shocks that would have faded on a busy barroom door."

"It shook its steering head like a dog coming out of a swimming pool and the rear end hopped around like the frame had a hinge in the middle. All things considered, the only thing this bike did right was not leak around the gas cap." – Rick "Super Hunky" Siemens of Dirt Bike Magazine"
Fri Sep 02, 2022 5:02 pm

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8789
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Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8789
Location: seattle/athens
Fri Sep 02, 2022 5:02 pm linkquote
All true except we never seized.
Quote:
...in 1973 the SC500 was Yamaha's first swing at building an "Open Class" motocross racing bike. The engine is a single-cylinder two-stroke with a capacity of 496cc and a compression ratio of 7:1, and it's capable of 44 bhp at 6500 rpm.

As with many two-strokes, particularly those from the 1970s, the power band was explosive. Coupled to a kerb weight of just 107 kilograms (235 lbs) the hair-trigger-on-off switch throttle resulted in a motorcycle that was a handful to ride...
That thing was too much fun, light enough to throw around and my first taste of too much power. A great bike for the young and foolish I'd say.

And we need to know just how fast CAN an old NSU fly?
Sat Sep 03, 2022 5:46 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Sat Sep 03, 2022 5:46 pm linkquote
I disassembled the fork today in order to go through it all. I cleaned and greased the fork bearings. I also disassembled the fork linkage. The only issue now is, where in the heck do I find replacement NSU parts? There seems to be some sort of missing bushings in the fork and shock linkage. I got zero hits with my google searching.





Sat Sep 03, 2022 5:53 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Sat Sep 03, 2022 5:53 pm linkquote
As you can see my handlebars looks similar to an albatross in flight with a broken wing. I contacted the guy on scoot.net who had a box of NSU Prima bits about his spare handlebar, but he sold that already. I saw another set of bars on eBay, but in the meantime I might try to straighten mine out. It's made of stamped sheetmetal, so in theory, it should be able to be done. I don't want to spend very much money on this scooter until I for sure can get it up and running.



Sat Sep 03, 2022 5:59 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
Sat Sep 03, 2022 5:59 pm linkquote
whodatschrome wrote:
I disassembled the fork today in order to go through it all. I cleaned and greased the fork bearings. I also disassembled the fork linkage. The only issue now is, where in the heck do I find replacement NSU parts? There seems to be some sort of missing bushings in the fork and shock linkage. I got zero hits with my google searching.
Tom and Anna Giordano would be my best guess. I think they're on face book as Tom and Anna's Vintage Vespa and Oddscoot Parts.

if they don't have it, I'm sure they can point you in the right direction.

hth!
Mon Sep 05, 2022 7:52 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Mon Sep 05, 2022 7:52 pm linkquote
I'm betting a Lambretta engine could be made to fit without too much cutting of the panels (and FYI, that bump stop hole in the Lammy engine is center of the wheel). The only problem is that I don't have a spare case AND building even a stock Lambretta engine is REALLY expensive (compared to a Vespa P series). Other than that, a stock Lambretta 200 would tick all my boxes for my horsepower desires. I'd still rather have a different engine than a Lammy...unless I find a good deal on a Lammy 200 or 150 (that I can kit).

And don't judge my welding shoes. Somewhere I have a a few socks that look very similar.





Mon Sep 05, 2022 8:07 pm

Ossessionato
79 P200E (Ruby), 62 Allstate (B-62), 2008 Stella (Olive)
Joined: 11 Jan 2006
Posts: 3162
Location: Florence, OR
 
Ossessionato
79 P200E (Ruby), 62 Allstate (B-62), 2008 Stella (Olive)
Joined: 11 Jan 2006
Posts: 3162
Location: Florence, OR
Mon Sep 05, 2022 8:07 pm linkquote
Welding shoes - or did the barn mice go after them?

You KNOW I couldn't resist....
Mon Sep 05, 2022 8:20 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Mon Sep 05, 2022 8:20 pm linkquote
qascooter wrote:
Welding shoes - or did the barn mice go after them?
Flippin barn mice. I hate them all. One of my joys is attaching the flail mower to the tractor and mowing our field. The dogs follow right along with the tractor, waiting to pick up and eat the mice that are trying to escape the mower's roller knives of doom.

My foot is still swollen up from my surgery 4.5 months ago, so I can only fit my foot in only a few pairs of shoes that I have. One shoe is beyond ratty, and my other shoe is still very nice so I can't wear it out in the shop. The worst part is that I have a medium sized collection of Nike Jordans and I can't fit my right foot into any of them.
Tue Sep 06, 2022 1:30 am

Hooked
PK50XL, PK100S, ET3
Joined: 26 Aug 2020
Posts: 276
Location: UK
 
Hooked
PK50XL, PK100S, ET3
Joined: 26 Aug 2020
Posts: 276
Location: UK
Tue Sep 06, 2022 1:30 am linkquote
Seeing what Egig is doing with the spigotless barrels, could you graft a larger top end onto the original engine? Go for un-tuned larger displacement to give you the higher top speed etc.
Tue Sep 06, 2022 5:39 am

Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
 
Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '04 Ninja 250
Joined: 04 Apr 2013
Posts: 6497
Location: San Diego, CA
Tue Sep 06, 2022 5:39 am linkquote
Liquid cooled cycle barrel on a Lammy engine
Tue Sep 06, 2022 12:45 pm

Ossessionato
Joined: 26 Oct 2015
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Ossessionato
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Posts: 3749

Tue Sep 06, 2022 12:45 pm linkquote
No doubt it's fun to imagine what sort of high zoot engine could be swapped in...350 Banshee, CR500, KX500, BRC 500 KTM conversion case and cylinder. But in my reality, I just want something more plug and play. We're talking about a guy who could go his whole rest of his life consummating with a vanilla stock P200 engine. I don't want to mess with figuring out different cylinders, crankshafts, connecting rods, or pistons. I want to be able to easily find off the shelf replacement parts when the time comes.
Tue Sep 06, 2022 11:08 pm

Molto Verboso
Scattered remnants of (two!) 1974 Rallys
Joined: 30 Jul 2009
Posts: 1633
Location: San Francisco, CA
 
Molto Verboso
Scattered remnants of (two!) 1974 Rallys
Joined: 30 Jul 2009
Posts: 1633
Location: San Francisco, CA
Tue Sep 06, 2022 11:08 pm linkquote
That looks perfect. The only wide part is the engine mounts, but those could be swapped out.

Does the tire line up?
Wed Sep 07, 2022 7:58 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Wed Sep 07, 2022 7:58 pm linkquote
hjo wrote:
That looks perfect. The only wide part is the engine mounts, but those could be swapped out.

Does the tire line up?
The existing Lambretta engine mounts are wide, but they might just fit between the NSU side panels (just like a Lammy, the NSU side panels are wider at the bottoms). The tire should easily line up dead center of the frame. I have no idea how well a Lammy engine will fit fore and aft though. I'd have to just mock up a Lammy case to see if there's going to be room between the top of the cylinder head and the lower frame loop. The NSU engine is pretty darn long, so there stands a chance that there could be enough room to fit a Lammy engine. And being that the NSU is a tube frame, it would be super simple (compared to a Vespa) to weld some fabricated engine and rear shock brackets to the frame.

I did swing by my friend's scooter shop today to discuss swapping in a Lambretta 200 engine. He was onboard with the idea. I'm in absolutely no rush to start on an engine swap though. I need to finish up 4 other Vespa and 4 KTM dirtbike projects before I crack into another 2 wheels!
Wed Sep 07, 2022 8:09 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Wed Sep 07, 2022 8:09 pm linkquote
I did a little bit of straightening of the handlebars. One side was bent down and back, while the other side was up and forward. It was fairly easy since they're made from stamped steel. I doubt that the bars are close to 100% straight, but was difficult to guesstimate what "straight" actually is since the legshield is wrinklier than the skin on an 80 year old baby boomer living in Florida.


Before


After

Thu Sep 08, 2022 6:53 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Thu Sep 08, 2022 6:53 pm linkquote
I did a little bit of straightening of the bend seat today. I didn't even attempt to try to bang on it until I drilled out all the rivets and disassembled it. After a bunch of pounding I plug welded the holes back up. The seat frame isn't close to perfect, but it's straight enough to sit perpendicular with the semi-straight handlebars. There one missing long spring. Maybe I can find one at a hardware store? I have no idea if seat covers are made for this scooter. Possibly a Lambretta seat cover could be used as an impromptu cover? I'm in no rush to find or buy one though.


I also did some measuring of a Lambretta engine case today. The result is that a Lammy engine will be WAY too long to fit in the NSU. The NSU's engine is about 16"~17" long from the very front of the engine, back to the centerline of the rear wheel. The Lammy's engine is closer to at least 22". So back to the drawing board for engines...









Thu Sep 08, 2022 8:12 pm

Molto Verboso
Scattered remnants of (two!) 1974 Rallys
Joined: 30 Jul 2009
Posts: 1633
Location: San Francisco, CA
 
Molto Verboso
Scattered remnants of (two!) 1974 Rallys
Joined: 30 Jul 2009
Posts: 1633
Location: San Francisco, CA
Thu Sep 08, 2022 8:12 pm linkquote
That looks great!

I saw handlebars for sale.

https://www.ebay.com/itm/265306319245



Thu Sep 08, 2022 8:29 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Thu Sep 08, 2022 8:29 pm linkquote
hjo wrote:
That looks great!

I saw handlebars for sale.

https://www.ebay.com/itm/265306319245
Thanks for looking out for parts hjo! I'm going to play it safe (monetarily wise) this time and make sure I can get some sort of engine installed AND running before I sink any money into replacement body or suspension parts.
Thu Sep 08, 2022 8:46 pm

Molto Verboso
Scattered remnants of (two!) 1974 Rallys
Joined: 30 Jul 2009
Posts: 1633
Location: San Francisco, CA
 
Molto Verboso
Scattered remnants of (two!) 1974 Rallys
Joined: 30 Jul 2009
Posts: 1633
Location: San Francisco, CA
Thu Sep 08, 2022 8:46 pm linkquote
I was looking to see if anyone made seat covers, and that popped up. There are a lot of misc Prima parts on ebay!
Thu Sep 08, 2022 9:12 pm

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
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Location: seattle/athens
 
Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
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Posts: 8789
Location: seattle/athens
Thu Sep 08, 2022 9:12 pm linkquote
Seatcover?



Nice job bringing that seat frame back. On my first Vespa, a smallie with a seat condition like above, I used a layer of foam and a cut off old pants leg sewed up at one end and a draw string at the back for quite a while until I could do better.

As far as a motor, is there any way you could fit a SMALLFRAME motor in there with a little panel cheating, maybe frame notching? I don't think more power here than a kitted 133 is the most prudent notion anyway given your dare devil ways!
Fri Sep 09, 2022 6:32 pm

Hooked
1963 Vespa VBB, 1965 Allstate Cruisaire, 1974 Vespa Super, 1980 Vespa P200, 2003 Stella 2T, 2008 Steall 2T, 2022 Royal Alloy 150 GT
Joined: 31 Jan 2016
Posts: 256
Location: Kansas City
 
Hooked
1963 Vespa VBB, 1965 Allstate Cruisaire, 1974 Vespa Super, 1980 Vespa P200, 2003 Stella 2T, 2008 Steall 2T, 2022 Royal Alloy 150 GT
Joined: 31 Jan 2016
Posts: 256
Location: Kansas City
Fri Sep 09, 2022 6:32 pm linkquote
chandlerman wrote:
I saw that picture and recoiled a little. I HATE wasps.
Oh, the irony...



Fri Sep 09, 2022 7:32 pm

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 6498
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 6498
Location: Nashville
Fri Sep 09, 2022 7:32 pm linkquote
Chatis wrote:
Oh, the irony...
Tue Sep 13, 2022 7:33 pm

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Tue Sep 13, 2022 7:33 pm linkquote
greasy125 wrote:
get me some turbo juice, fill the mig bottle and bring me some fresh sawzall blades. that thing is begging for a modern engine of some type. like a little shifty 80~125 dirt bike 2T or a GY6 or something...

pound to fit, paint to match. ride it ugly.
Greasy, another one of my friends mentioned using a GY6 engine. Though I'm not fond of the idea of using a 4T T&G engine, I think I'm really limited with my options. A Lammy engine will be at least 5" too long...unless I do some fairly intricate frame and bodywork. I have zero knowledge of the GY6 engines, except that I know it's a really popular engine to swap into the Ruckus and other auto scooters. I researched the GY6 some today, and it looks like there's both a short and long case engine. Do you (or anybody else) know the actual measurements of these engines? I'm looking to find out the distance between the center of the rear hub, to the front of the cylinder head (or I guess valve cover since we're talking about a 4T engine).

-And how reliable is a GY6?
-can a GY6 be (reliably) built to cruise at 65mph? I'm after the same power and speeds as a stock P200.
Mon Sep 19, 2022 11:53 am

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Mon Sep 19, 2022 11:53 am linkquote
So is anyone here familiar with the ins and outs of the GY6 engines? A couple days ago I did just realize that I have a spare (but tired) late model KTM 990R Adventure engine (f.i. twin cylinder) in my shop. Swapping that 115hp engine into anything would probably be a bad idea through. The engine alone weighs about 128lbs.
Mon Sep 19, 2022 1:08 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
Mon Sep 19, 2022 1:08 pm linkquote
yes. I can be of assistance.

I have a long case and a short case. let me dig them out this afternoon and I'll measure them up for ya
Mon Sep 19, 2022 3:09 pm

Addicted
1964 Piaggio Allstate Cruisaire
Joined: 15 Aug 2021
Posts: 575
Location: York, PA
 
Addicted
1964 Piaggio Allstate Cruisaire
Joined: 15 Aug 2021
Posts: 575
Location: York, PA
Mon Sep 19, 2022 3:09 pm linkquote
Don't know if this helps but lost of expensive NSU parts:

https://thekneeslider.com/motorcycle-parts/motorcycle-parts.php?s=nsu
Fri Sep 23, 2022 7:19 am

Ossessionato
Joined: 26 Oct 2015
Posts: 3749

 
Ossessionato
Joined: 26 Oct 2015
Posts: 3749

Fri Sep 23, 2022 7:19 am linkquote
Another option for somehow slinging in a different engine is to keep the body and frame the same length, but just have the rear tire stick however far out past the body. By doing that, the long Lambretta or ET/LX 150 engines might be able to fit?...I dunno.


Random pic from the internet. I'm guessing the rear portion of the side panels would have to be modified in some sort of fashion...especially to build an upper shock mount.


Obviously I don't want to go crazy like this through.

Fri Sep 23, 2022 9:34 am

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 6498
Location: Nashville
 
Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate, 08 Stella (for now)
Joined: 16 Jun 2011
Posts: 6498
Location: Nashville
Fri Sep 23, 2022 9:34 am linkquote
You don't want the same vibe as a 50cc scooter with a drag tire on it? It has so many advantages, like it doesn't even need a center stand. And it's theft-proof, because no self-respecting thief would be seen with that thing.
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