Search found 149 matches

by Davidsquaredson
Fri May 10, 2019 1:52 am
Forum: Lambretta Tech
Topic: Help Understanding stator test results.
Replies: 7
Views: 539

Re: Help Understanding stator test results.

The answer to that is maybe. Cleaning up connections is always a good idea. 0.4 ohms might be down to your meter not being zero’d properly Unless your running dc the dim-bright with RPM is normal What’s more likely to be causing the issue is poor earths in the headset and from the engine to the fra...
by Davidsquaredson
Thu May 09, 2019 2:56 am
Forum: Lambretta Tech
Topic: Help Understanding stator test results.
Replies: 7
Views: 539

Help Understanding stator test results.

Hey, My scooters headlight is not as bright as it should be at idle (1300 rpm). Picks up with rpm. Bulb is good. Bgm 120w stator and bgm flywheel. White earth to mag housing: 0.4 ohms White to green: 504 White to red: 112 Do I interpret that as I need to clean my stator ground wire up? Sticky says t...
by Davidsquaredson
Sat May 04, 2019 3:31 pm
Forum: Lambretta Tech
Topic: seeking recommendation on GT200 gearing
Replies: 10
Views: 633

Re: seeking recommendation on GT200 gearing

Advice I have been given is Franspeed Race is ideal if it's >200cc, but the Supertourer is a better match for 200cc and my gearbox.

David

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by Davidsquaredson
Wed May 01, 2019 12:23 am
Forum: Lambretta Tech
Topic: Scootrs expansion pipe dyno chart?
Replies: 0
Views: 158

Scootrs expansion pipe dyno chart?

Hi, I have two of these pipes hanging in my garage. Wondering if I should try one on one of my scooters. But before going to too much bother, I'm wondering if anyone has a dyno cart of one so I can estimate the results. I remember reading they were a copy of a PM pipe, but small changes can have big...
by Davidsquaredson
Tue Apr 30, 2019 3:23 pm
Forum: Lambretta Tech
Topic: Rear hub oil seal
Replies: 10
Views: 416

Re: Rear hub oil seal

I was able to get the new type seal with the inner lip to fit by warming it up (used a hot air paint stripper on low setting and very carefully). I found the inner lip would flip out in one spot, so I took the thinnest feeler guage I had, and used it like a guide. As I pushed the greased seal on, I ...
by Davidsquaredson
Sat Apr 27, 2019 3:05 pm
Forum: Lambretta Tech
Topic: Gran Turismo GT200 Big block - PHBH 30 Jetting Advice Please
Replies: 10
Views: 963

Re: Gran Turismo GT200 Big block - PHBH 30 Jetting Advice Please

Hi Just built a Gran Turismo GT200 Big block engine and after some jetting recommendation please. My set up is 30mm PHBH, BGM V4 clubman, 18/47 SX200 gearing. Anybody with a similar setup? Hi Bidsy, My jet200 has the same setup. I'm trying to figure out the right exhaust to match the sx200 gear box...
by Davidsquaredson
Sat Apr 27, 2019 2:13 am
Forum: Lambretta Tech
Topic: seeking recommendation on GT200 gearing
Replies: 10
Views: 633

Re: seeking recommendation on GT200 gearing

Tx. Gearing is the only part of the engine I'm not that familiar with. I got offered the PM pipe at 1/3 the price of new so just tried it. Before I do anything else I'll throw the BB clubman on and see how it behaves.

David

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by Davidsquaredson
Fri Apr 26, 2019 7:31 pm
Forum: Lambretta Tech
Topic: seeking recommendation on GT200 gearing
Replies: 10
Views: 633

Re: seeking recommendation on GT200 gearing

I think your pipe is the problem, pm is a revvy pipe but your final drive ratio is better for a pipe that makes more torque, tsr evo or a fresco comes to mind, choice of pipe and final drive ratio go hand in hand. only other option is to get a bigger crownwheel. ... good response and almost certain...
by Davidsquaredson
Thu Apr 25, 2019 6:58 pm
Forum: Lambretta Tech
Topic: seeking recommendation on GT200 gearing
Replies: 10
Views: 633

seeking recommendation on GT200 gearing

Hey, My GT is on stock Jet200 gearing: primary drive: 46/15 1st gear: 12.52: 1 2nd gear: 8.76: 1 3rd gear: 6.30: 1 4th gear: 4.82: 1 28mm Dellorto, breathsweet foam filter + PM tuning Evo pipe. Pulls like its possessed up through 3rd gear and when I shift into 4th acceleration drops off dramatically...
by Davidsquaredson
Fri Apr 19, 2019 4:59 pm
Forum: Lambretta Tech
Topic: Gran Turismo GT200 Big block - PHBH 30 Jetting Advice Please
Replies: 10
Views: 963

Re: Gran Turismo GT200 Big block - PHBH 30 Jetting Advice Please

Gt200. 28mm Delly. Breathsweet foam and big rubber elbow. Pm tuning Evo pipe. Choke 60. Idle 52. Slide 40. Av268 atomizer. My main is 134. X13 needle. When I had a big big clubman (gen 1) my main was 130. It starts 1st kick cold with the choke on and not touching the throttle. I was not happy when ...