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My 50cc Derbi senda sm xtreme cuts out when i get it running why?

My 50cc Derbi senda sm xtreme cuts out when i get it running i dont understand because if i give it revs it stays running its a soon as i stop and it idles it drops to under 2000 rpm and cuts out, it just started happening. somebody please explain why it is?????

oliver benford
November 2007
Vehicles, MotorcyclesSm Cuts Out Running
too big jet in carb , i have a derbi drd pro r with a 82 jet in its perfect.
try a smaller jet

derbi
May 2012
Yes ive got the exact same problem but not too sure...

jimmy yates
February 2011
It might be a few things,
1. you have a dodgy spark plug, or the tiny pin at the bottom of the spark plug has been knocked off,
Also try the carb isn't full of muck, check the air filter is on securley too and again isn't full of sh!t.
Hope this helps!

Matt
March 2008
Check the idle screw on the carb, it sounds like it is set too low.

Truslack
March 2008
Check the idle screw on the carb, it sounds like it is set too low.

Truslack
March 2008
try turning the rev screw on the carb, turn it right about 2 full turns and keep fiddling with it until your satisfied that it will tick over properly, but not to high.

good luck

robin hart
November 2007
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