Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
The water pump can be mounted on the lx case but it's easier to go electric.

Ossessionato
Joined: 24 Jan 2008
Posts: 2091
Location: Santa Margarita,Ca.
 
Ossessionato
Joined: 24 Jan 2008
Posts: 2091
Location: Santa Margarita,Ca.
With a salvage GT the whole harness could be swapped

Same stroke but unknown to me is rod length

Thought about just the head on a 190
You'd have to see first if the oil passages lines up and then if you can get right clearances and the other issues discussed
I think the GT swap is the winner

Petty Tyrant
0:7 And counting
Joined: 11 Oct 2005
Posts: 33089
Location: Bay Area, California
 
Petty Tyrant
0:7 And counting
Joined: 11 Oct 2005
Posts: 33089
Location: Bay Area, California
scootermarc69 wrote:
With a salvage GT the whole harness could be swapped
Yes, though the process is nontrivial. Patrick untaped the GT harness and remade it into the shape of the LX harness.
⬆️    About 15w elapsed between posts    ⬇️

Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
Added a fan to the radiator today and wired it in.

Did some laps of twin peaks and around the neighborhood to get it warm enough to verify it works. It does, and flows enough air to turn the fan off again even when not moving.

Now I feel like I can safely do some longer tests.

Ossessionato
Joined: 24 Jan 2008
Posts: 2091
Location: Santa Margarita,Ca.
 
Ossessionato
Joined: 24 Jan 2008
Posts: 2091
Location: Santa Margarita,Ca.
I suggest a run down 25 to Santa Margarita
⬆️    About 24w elapsed between posts    ⬇️

Hooked
Vespa ET4 150, Ebony.
Joined: 09 Nov 2012
Posts: 368
Location: Victoria B.C. Canada
 
Hooked
Vespa ET4 150, Ebony.
Joined: 09 Nov 2012
Posts: 368
Location: Victoria B.C. Canada
Any progress on this?
Nice to find other peeps who think like I do.
Mega.

Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
I've been riding it around town and have a few small things to tend to.

1. It needs a fuel pump. On high speed WOT it uses more rule than gravity can deliver.

2. Something is up with the contra spring. The faster you go the lower the RPM goes, maxing out at about 70-75. So, I need to rebuild the driven pulley and maybe install the malossi contra spring.

It's crazy quick though.

Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
plumbed in the fuel pump yesterday and did some short test runs. still need to swap out the contra spring.
⬆️    About 25w elapsed between posts    ⬇️

Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
Tuned intake
Now that Rich (and Jess) has taken the GPS speed lead I felt I needed to address the tuned length on the intake. The stock intake is about 100mm too short and has a really abrupt curve to it. Carbs work best if they are at the end of the intake so the extended bell intake we used on the GTS won't work.

Took a look at all the mandrel bent aluminum tubing I could find and picked the one with the largest radius that fit within the needed length.



⬆️    About 6w elapsed between posts    ⬇️

Member
Vespa LX 125
Joined: 06 May 2013
Posts: 34
Location: Bermuda
 
Member
Vespa LX 125
Joined: 06 May 2013
Posts: 34
Location: Bermuda
wowza
oopsclunkthud wrote:
I got the motor mount for Rosebud back today. It is a work of art! The point of the new mount was to extend it by 30mm to allow clearance for the exhaust. But as long as this was being done I figured why not get rid of the crappy rubber bushings and use roller bearings as well as gusseting the area where it connects to the motor.

The motor will still be able to pitch up and down relative to the frame but all roll and yaw will be a thing of the past.

Next step, powdercoating.
That looks spectacular
Good job looks very rigid (bearing-wise)
⬆️    About 2y elapsed between posts    ⬇️

Lurker
S50 2t
Joined: 11 Jan 2015
Posts: 2
Location: Warsaw, Poland
 
Lurker
S50 2t
Joined: 11 Jan 2015
Posts: 2
Location: Warsaw, Poland
Hi there!

It was exciting to read about your work. Could you please post some update? Have you managed to hide cooling staff inside the frame?

Again - incredible project and I hope it's still going on!

Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
 
Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
lx with radiators
lx with gt radiators fitted






Hooked
Zip50 hyperscooter 188cc
Joined: 27 Feb 2012
Posts: 156
Location: Athens,Greece
 
Hooked
Zip50 hyperscooter 188cc
Joined: 27 Feb 2012
Posts: 156
Location: Athens,Greece
Is there any space left for installing a radiator fan?

Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
 
Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
Only very small 12v computer fans

Ossessionato
GTS, LX, VSD, VSX, VNX, LD 125, Chucky, LI125
Joined: 21 Oct 2005
Posts: 4181
Location: San Jose CA
 
Ossessionato
GTS, LX, VSD, VSX, VNX, LD 125, Chucky, LI125
Joined: 21 Oct 2005
Posts: 4181
Location: San Jose CA
quaddiekev wrote:
Only very small 12v computer fans
If there is a cycle salvage near you check out the fans from a Honda cbr1000.

Not sure what year those I found were.

They are very thin...<1".

That were the only fan found that would fit into a Skipper conversion I did in 2008. One also ended up in The 'ninja rabbit'.

Might be just what you need.

What are you doing for a reservoir/expansion tank?

R

Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
 
Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
hi, I am currently using the standard Gt water bottle on my conversion

Ossessionato
09 190s taormina
Joined: 08 Apr 2010
Posts: 2083
Location: Googleville
 
Ossessionato
09 190s taormina
Joined: 08 Apr 2010
Posts: 2083
Location: Googleville
quaddiekev wrote:
lx with gt radiators fitted
Nice. I knew this was doable. Got pics of the holes in the legshield?

Lurker
S50 2t
Joined: 11 Jan 2015
Posts: 2
Location: Warsaw, Poland
 
Lurker
S50 2t
Joined: 11 Jan 2015
Posts: 2
Location: Warsaw, Poland
Hi!

Thank you for posting your photos!

How about performance of your Vespas? What are the speeds and accelerations comparing to S125 and GTS125? Can they exceed 100 km/h or maybe even reach 110 km/h or 120 km/h?

I wonder if the radiators can fit space between pet carrier and the body - of course some holes would need to be cut out.

Thanks!

Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
 
Enthusiast
Joined: 19 Mar 2012
Posts: 80
Location: uk
I have gone a slightly different route and used a gilera runner two stroke engine bored out to 172cc estimated top end speed of about 160km



⬆️    About 7y elapsed between posts    ⬇️

Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
bump!

Petty Tyrant
0:7 And counting
Joined: 11 Oct 2005
Posts: 33089
Location: Bay Area, California
 
Petty Tyrant
0:7 And counting
Joined: 11 Oct 2005
Posts: 33089
Location: Bay Area, California
This should be good.

Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
 
Banned
2:6
Joined: 11 Jan 2007
Posts: 8352
Location: San Francisco
here's the radiator ducting I designed way way back:



⬆️    About 1y elapsed between posts    ⬇️

Enthusiast
2014 GTV300; 2009 S50
Joined: 04 Jun 2019
Posts: 93
Location: Anchorage AK
 
Enthusiast
2014 GTV300; 2009 S50
Joined: 04 Jun 2019
Posts: 93
Location: Anchorage AK
oopsclunkthud wrote:
here's the radiator ducting I designed way way back:
... And what happened?
   

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