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Old 21-09-2017, 06:33 PM   #1
Daddyrascle's Avatar
Join Date: Sep 2017
Age: 47
Posts: 1
Bike: Stomp demo 140
Starting up from cold

Hi everyone,,I have got for my son a stomp demon Xlr 140..... it's taking me about 15 mins to get it going from cold,,,coughs and splutters till I get it warmed up then it fine,,thought it was a carb problem so I bought a new one,,genuine as well,,,still the same,,,its driving me mad,, any ideas
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Old 26-09-2017, 10:20 PM   #2
Track Master
pitdogrider's Avatar
Join Date: Mar 2015
Location: Parish, UK
Age: 36
Posts: 341
Bike: KURZ RT1 Z190
Re: Starting up from cold

Have you checked and set your valve clearances?
Also are you starting the kick from TDC?
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Old 02-10-2017, 10:59 PM   #3
On Stabilizers
prawny12009's Avatar
Join Date: Aug 2017
Age: 32
Posts: 34
Bike: Shineray xy50
Re: Starting up from cold

It is always worth setting your valve clearances correctly but also Check the gap on your spark plug and also check the inlet manifold is sealing correctly both on the head end and carb end.

If you are running an open air filter set the pilot screw to about 3 turns ou, this should get you in the ball park to get the bike running.

Last edited by prawny12009; 02-10-2017 at 11:00 PM.
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Old 09-10-2017, 07:39 PM   #4
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Bonio79's Avatar
Join Date: Jun 2017
Posts: 46
Bike: Crf50 pit bike
Re: Starting up from cold

Have u used the choke ?
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Old 13-11-2017, 10:16 AM   #5
jal123ddd's Avatar
Join Date: Jun 2013
Location: penywaun ,wales
Age: 44
Posts: 100
Bike: 110, 125,both s
Re: Starting up from cold

was the carb pre set when you had it ,if so should be fine on this ,and as with the valves they say there set but are not at the right setting ,top valve .004 0.10mm and bottom .006 0.15mm
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