Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
by jacktheripper » Sun Apr 23, 2017 10:05 pm
Hi
I have purchased a gp200 with a mugello kit on it running a 26mm dellorto and scootopia exhaust, scooter starts fine picks up well and runs well at speed but when reducing speed its has alot of vibration any ideas as before i start stripping bits i want to try and save some time and money
cheers
john
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jacktheripper
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by P D: SC Chester » Fri Apr 28, 2017 3:42 pm
Wrong tree. What he says below

Last edited by
P D: SC Chester on Fri Apr 28, 2017 5:21 pm, edited 1 time in total.
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P D: SC Chester
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by HxPaul » Fri Apr 28, 2017 4:07 pm
Are the engine mounts (silent blocks) worn in any way,especially the kickstart side.
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HxPaul
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by burnside » Sun Apr 30, 2017 3:58 pm
As Paul says, check your silent mounts. Also, just check all the bodywork over and make sure nothing is lose. I was experiencing bad vibrations at low-mid revs on one of mine that seemed to concentrate on the headset, was driving me mad, then I discovered the culprit was a loose fixing on the bridge piece. Tightened that back up and vibrations gone
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burnside
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by jacktheripper » Thu May 25, 2017 9:42 pm
Hi all thanks for reply the mounts look good and no rubbing, as for the bridge piece sorry to be thick but where do you mean?
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jacktheripper
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by MickYork » Fri May 26, 2017 7:13 am
The fork bearings (headset) may need tightening, worth a check.
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by jacktheripper » Mon May 29, 2017 10:32 pm
ive tightened headset as when i brought scoot the headset was loose, just wndering if bottom set are worn
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by burnside » Tue May 30, 2017 2:52 pm
jacktheripper wrote:Hi all thanks for reply the mounts look good and no rubbing, as for the bridge piece sorry to be thick but where do you mean?
The bridge piece is the bit of body work just beneath your fuel tap and choke and 'bridges' the gap between the legshields and the rear footboards. But that was my issue, not necessarily yours, just go over all the bodywork fixings and make sure nothing is loose.
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burnside
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by jacktheripper » Wed May 31, 2017 10:40 pm
cheers burnside thats what i thought you meant, its a major vibration through bodywork more like engine or forks i believe
cheers
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