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Poor Tickover

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Poor Tickover

Postby stan63 » Tue Oct 25, 2016 1:11 pm

I RECENTLY CHANGED THE CHOKE LEVER ON MY GP 125 DL,SINCE THEN I HAVE HAD PROBLEMS WITH IT TICKING OVER,I HAVE ADJUSTED THE CHOKE BUT NOTHING HAPPENS,I HAVE CLEANED THE CARB AND JETS,BUT NOTHING CHANGES,THE ONLY WAY I CAN GET IT TO TICK OVER IS TO REMOVE THE CHOKE FROM THE CARB,THEN IT RUNS SWEET BUT IF I PUT A FINGER OVER THE HOLE WHERE THE CHOKE GOES IT CUTS OUT.

THANKS IN ADVANCE.
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Re: Poor Tickover

Postby HxPaul » Tue Oct 25, 2016 2:23 pm

The new choke lever may not be letting the choke shut off properly,in effect making the choke cable to short,causing the choke to be open all of the time.Check that the choke closes properly when turned off.
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Re: Poor Tickover

Postby stan63 » Tue Oct 25, 2016 3:07 pm

I've checked that it's working and the plunger is moving up and down,will the engine run if choke not fitted ?
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Re: Poor Tickover

Postby HxPaul » Tue Oct 25, 2016 3:24 pm

It will make it difficult to start when the engine is warm.You say that the plunger is moving up and down,but is it closing completely when its turned off.
Last edited by HxPaul on Tue Oct 25, 2016 6:55 pm, edited 1 time in total.
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Re: Poor Tickover

Postby EddieStone » Tue Oct 25, 2016 3:33 pm

The plunger may be going up and down, but it may not be closing fully. I prefer a bit of slack in the cable so I know the plunger is fully seated.
If you've replaced the cable, they can be slightly different lengths and you may have one a bit short
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Re: Poor Tickover

Postby stan63 » Tue Oct 25, 2016 6:02 pm

just stripped the choke and carb ,totally cleaned carb jets, checked for fuel to the float, replaced all parts and guess what ???
it runs like a dream again.
Thanks for the help, much appreciated.
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Re: Poor Tickover

Postby HxPaul » Tue Oct 25, 2016 6:54 pm

Glad its running ok :)
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