@qascooter avatar
UTC

Ossessionato
79 P200E (Ruby), 62 Allstate (B-62)
Joined: UTC
Posts: 4167
Location: Florence, OR
 
Ossessionato
@qascooter avatar
79 P200E (Ruby), 62 Allstate (B-62)
Joined: UTC
Posts: 4167
Location: Florence, OR
UTC quote
Wow! Good find. Sucks, but good find! Clap emoticon Clap emoticon
OP
@gt6mk3 avatar
UTC

Hooked
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
 
Hooked
@gt6mk3 avatar
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
UTC quote
Three hours after pumping it up to 6psi today it was still just over 4psi.

I reckon that'll do.
UTC

Jet Eye Master
PX221 MHR, O tuned PX200, PX181 Quattrini and some motorbikes
Joined: UTC
Posts: 4438
Location: London UK
 
Jet Eye Master
PX221 MHR, O tuned PX200, PX181 Quattrini and some motorbikes
Joined: UTC
Posts: 4438
Location: London UK
UTC quote
Your pressure testing is legendary. I just wait 10 minutes. Need to up my game.
I would like to say its hard to believe that Malossi reed block but it just isn't. A lot of parts now are a bit rough.
@charlieman22 avatar
UTC

Nedminder
62 VBB1T Round Tail W/ leaner sidecar
Joined: UTC
Posts: 4023
Location: california
 
Nedminder
@charlieman22 avatar
62 VBB1T Round Tail W/ leaner sidecar
Joined: UTC
Posts: 4023
Location: california
UTC quote
Remarkable find really.
Ur motors are air tight enough to float with helium.
Curious tho - the hole appeared to be round - as if bored.
What do u make of the almost perfect circle ?
Did that just punch out?
Forum member supplied image with no explanatory text
@jimscoot avatar
UTC

Addicted
PX 150
Joined: UTC
Posts: 577
Location: Gold Coast, Australia
 
Addicted
@jimscoot avatar
PX 150
Joined: UTC
Posts: 577
Location: Gold Coast, Australia
UTC quote
Thats Nasty Craig..i hope mines ok, been running for over a year now so time will tell
Forum member supplied image with no explanatory text
OP
@gt6mk3 avatar
UTC

Hooked
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
 
Hooked
@gt6mk3 avatar
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
UTC quote
Quote:
Your pressure testing is legendary. I just wait 10 minutes. Need to up my game.
I would like to say its hard to believe that Malossi reed block but it just isn't. A lot of parts now are a bit rough.
Yep - dissapointed in the roughness of that. SIP have offered to ship a replacement, fair play to them. U.A.T. has been part of my working life for long enough that I cant divorce myself from it, so it's nice when the result works.
Quote:
Curious tho - the hole appeared to be round - as if bored.
What do u make of the almost perfect circle ?
Did that just punch out?
All I did was press on it with a scribe when it was under about 5-6psi of pressure. The wall was only about .2mm thin at that point, so no surprise it blew. The pretty circle was interesting, the jagged bits were pointing in not out, not sure why.
Quote:
hats Nasty Craig..i hope mines ok, been running for over a year now so time will tell
Nice shot Jim. Mine's got reed cases, so it's a canyon in comparison. I'll try to get a shot. Am thinking about putting a fuel pump on, so might take the vac off the side wall of the block.

She's up and running, but not rideable yet - gear selection needs work.
OP
@gt6mk3 avatar
UTC

Hooked
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
 
Hooked
@gt6mk3 avatar
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
UTC quote
Think I'm gonna need some help from the brains trust here.

I put a px lusso driveset in on the latest rebuild. Since then I've been really struggling to select gears.

I've tried my liztor selector, then a used and crusty PX style one out of a box in the garage, then a shiny new one.

Tonight the shiny new one went on. Was stiff at first, but it shifted, and went into all gears. I put some greaseon it and went for a spin.

It was good at first - selected all gears and went up and down. I started to feel good about it and found some gaps in traffic to get it on the pipe. All good and wickedly fun.

Next I headed to the freeway. Just after dark and pretty busy, but I got it into a gap, pushed it through the gears on the pipe, and was happily winding past 100 klicks when I could get a gap. then I jumped off the freeway, looped back on, and headed back into town (less traffic that way)

Heading down the on ramp, I switch into "like you stole it" mode, and wanted to hit 4th really on the pipe. Clutch in, twist to 4th, nope. Massive resistance. Hmm, now I'm joing the freeway coasting on the clutch, rather than accellerating into my gap. Nasty. Rev, hold 3rd, jump off at the off ramp.

From there on, all the way home,I only had 1st and second, and occasionally, if I twisted like I was going to break the cable, 3rd.

I checked the cables, nothings caught, I loosened them slightly in case they were too tight, and I adjusted the clutch up and down.

Weird. 1, neutral 2 and sometimes 3.

Any thoughts on what I might have done?
UTC

parallelogramerist
Joined: UTC
Posts: 5036
 
parallelogramerist
Joined: UTC
Posts: 5036
UTC quote
Gt6MK3 wrote:
Think I'm gonna need some help from the brains trust here.

I put a px lusso driveset in on the latest rebuild. Since then I've been really struggling to select gears.

I've tried my liztor selector, then a used and crusty PX style one out of a box in the garage, then a shiny new one.

Tonight the shiny new one went on. Was stiff at first, but it shifted, and went into all gears. I put some greaseon it and went for a spin.

It was good at first - selected all gears and went up and down. I started to feel good about it and found some gaps in traffic to get it on the pipe. All good and wickedly fun.

Next I headed to the freeway. Just after dark and pretty busy, but I got it into a gap, pushed it through the gears on the pipe, and was happily winding past 100 klicks when I could get a gap. then I jumped off the freeway, looped back on, and headed back into town (less traffic that way)

Heading down the on ramp, I switch into "like you stole it" mode, and wanted to hit 4th really on the pipe. Clutch in, twist to 4th, nope. Massive resistance. Hmm, now I'm joing the freeway coasting on the clutch, rather than accellerating into my gap. Nasty. Rev, hold 3rd, jump off at the off ramp.

From there on, all the way home,I only had 1st and second, and occasionally, if I twisted like I was going to break the cable, 3rd.

I checked the cables, nothings caught, I loosened them slightly in case they were too tight, and I adjusted the clutch up and down.

Weird. 1, neutral 2 and sometimes 3.

Any thoughts on what I might have done?
Shooting from the hip...

Did the cruciform back off the threads a smidge?
Checked the tiny tapered pin that's located in the selector box arm?
Lusso driveset is EFL, correct? Could it be possible that you accidentally installed pre and post Lusso gears on the same stack?
Newer selector boxes aren't the best of quality. Maybe that could be a problem as well?
Some foreign object fell into your headset, causing the shift handle to not rotate forwards?
Frayed gear selector cable causing a fiction point somewhere in your cable?
The pinch bolts at the selector box are too tall, and are fouling out against the selector box cover?
@charlieman22 avatar
UTC

Nedminder
62 VBB1T Round Tail W/ leaner sidecar
Joined: UTC
Posts: 4023
Location: california
 
Nedminder
@charlieman22 avatar
62 VBB1T Round Tail W/ leaner sidecar
Joined: UTC
Posts: 4023
Location: california
UTC quote
Quote:
I put a px lusso driveset in on the latest rebuild
Well - I fall well short of brain trust - actually - I think I fail on both counts - but first thought is this:

https://scooterlab.uk/vespa-px-gear-selector-boxes-part-1-workshop/

These guys did a whole write up about it with some pretty detailed pics you can confirm with Check vs V shapes and subtle height change - which might be interfering as it goes above deck in 3rd gear - where you are having some weirdness.
Forum member supplied image with no explanatory text
Forum member supplied image with no explanatory text
@chandlerman avatar
UTC

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate
Joined: UTC
Posts: 9393
Location: Nashville

118 Days Since Last Explosion
 
Lucky
@chandlerman avatar
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate
Joined: UTC
Posts: 9393
Location: Nashville

118 Days Since Last Explosion
UTC quote
JBWeld repairs aren't temporary. Just sayin' D
⬆️    About 3 months elapsed    ⬇️
OP
@gt6mk3 avatar
UTC

Hooked
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
 
Hooked
@gt6mk3 avatar
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
UTC quote
Life has been a little busy.

Went out and figured it out today.

I'd already played with the selector box. And the cables. And the clutch. And the selector rod. And boroscoped the cruciform. Nada.

I took the selector box off the cables completely, and the problem remained. Must be headset or cables.

So I pulled out the headlight and speedo, and I looked hard in the headset. The cables ran free, but the selctor disk could concieveably foul on the inner edge of the headset (it's a px style disk in a Super headset). So I dremelled it. No good.

I then thought I had it - the new disk has a new clip, maybe it's sticking. So I trimmed the excess of the ends. Better, but still sticking. Then I had a bloody good look at the tube itself.

There was a big fracture, and a twist in the tube, and it was fouling on the clutch cable.. Getting it out was a chore.
[/img]
Problem solved.  New tube ordered.
Problem solved. New tube ordered.
@sdjohn avatar
UTC

Veni, Vidi, Posti
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 8147
Location: San Diego, CA
 
Veni, Vidi, Posti
@sdjohn avatar
'15 GTS300, '86 PX125EFL, '66 VBB, '01 ET4
Joined: UTC
Posts: 8147
Location: San Diego, CA
UTC quote
eegads! at least you found it!
@ginch avatar
UTC

Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe
Joined: UTC
Posts: 8595
Location: Victoria, Australia
 
Veni, Vidi, Posti
@ginch avatar
74 Super, 75 Super, PX project, LML off-roader and '66 Blue Badge Smallframe
Joined: UTC
Posts: 8595
Location: Victoria, Australia
UTC quote
And cable outer I hope!
⬆️    About 1 year elapsed    ⬇️
UTC

Member
LML Star Deluxe 125 (177)
Joined: UTC
Posts: 13
Location: Japan
 
Member
LML Star Deluxe 125 (177)
Joined: UTC
Posts: 13
Location: Japan
UTC quote
160/BE3/118 main

Does the '160' refer to the air corrector?
SoCalGuy wrote:
I agree with Ginch, stick with 2%.

FWIW, I'm currently running a 24/24 carb on my Polini 177 with a BGM pipe. Jets are 38/120 idle, 160/BE3/118 main. It's dialed in pretty tight. Good luck.
@chandlerman avatar
UTC

Lucky
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate
Joined: UTC
Posts: 9393
Location: Nashville

118 Days Since Last Explosion
 
Lucky
@chandlerman avatar
76 Sprint V, 63 GL, 62 VBB, 05 Stella, 66 Smallstate
Joined: UTC
Posts: 9393
Location: Nashville

118 Days Since Last Explosion
UTC quote
Star177 wrote:
160/BE3/118 main

Does the '160' refer to the air corrector?
Yes it does.
⬆️    About 2 years elapsed    ⬇️
OP
@gt6mk3 avatar
UTC

Hooked
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
 
Hooked
@gt6mk3 avatar
Bodgerific 150 Super, PX200(ish...), US 50 Special in progress
Joined: UTC
Posts: 478
Location: Melbourne, Way Downunder
UTC quote
G'Day again All.

The vagaries of post covid life mean that I don't get a lot of scooter wrenching time or post wrenching MV posting time!).

Unfortunatly during the Covid lockdowns, I let HanoiJane fall out of registration, which is an absolute palava to fix. So she sat idle in the back of my storage lockup.

Buuuttt.. a few months ago, I pulled her out and trucked her over to a buddy who's running a sccoter resto biz, got him to get her road legal and registerable again, then, having jumped through the hoops to have shiny new plates on her, I got him bolt the fun bits back on, and get her back making semi legal noises.

So since about November, I've been hooning around town to and from work,

External inline image provided by member with no explanatory text

Spec at that point...

Vietbodge Super frame on 10" wheels
Malossi MHR177
Mazzucchelli PX200 bell crank with 60mm stroke, 110mm conrod ,Grand Sport Gudgeon pin conversion bearing and custom packer 5mm packer.
LML reed 150 cases, JB'd and ported to match MHR.
Malossi 150 PBHB kit with PHBH 30, Malossi intake, reed and bellows, plus custom adapter to LML case - intake and case both milled and matched to 200 spec.
BGM Fast Fuel tap
Banded sip Cosa 2 clutch
22/67 primary ratio
p200 gearset with T5 4th
Sip quickroll
Koso digital EGT and AFR
SIP speedo and egt
Vespatronic at 23 degrees at 2500 RPM
Custom loom with battery for gauges, and usb charger
Sip Front shock with standard spring
KYB rear shock
Crimaz front disk
Transfer at 122, Exhaust at 180
S&S pipe


Which was pretty fun around town, if bloody hard to ride. Idle needed to be about 1600 rpm, and it was rich if off pipe (below 5500) then sllightly lean when it first got on the pipe, then it just took off an screamed up to 9500 rpm.

Usually with the front wheel disengaged from the ground most of the way.

Fun time.

More to come
@birdsnest avatar
UTC

Not So Moderator
VNB VSC 09C VMA VSX - vbc vmb
Joined: UTC
Posts: 7952
Location: Hustletown, TX
 
Not So Moderator
@birdsnest avatar
VNB VSC 09C VMA VSX - vbc vmb
Joined: UTC
Posts: 7952
Location: Hustletown, TX
UTC quote
Sounds perfectly nutso. Well done!
Good to see ya pop in for wave.
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