Hi Folks. I just can't get to the bottom of this. I have just replaced the carb. The bike seems to rev OK in neutral but as soon as I load it up in gear it just breaks down and miss fires. I have checked timing, and thats spot on the marks. CDI has been replaced. Im hoping someone can help out here. Thanks in advance.
Help Please, YX 150. Replaced piston, carby, CDI, and still no joy?
- Thread starter Impellor
- Start date
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replaced the carby? what carby and what did you change from?
did you put the original carbys jets in the new one?
Check for an air leak, while the bike is idling spray around the intake manifold and carby and see if the revs change, if they do (which i think they will) you have an air leak, fix that and you should be good to go 
my67xr
Miniriders Legend and Master Spanner Spinning Mode
fouled/faulty spark plug?
needapitty
Well-Known Member
have you tried a new coil? sounds spark relaited for sure...
DHZ_XR8cing
Master Spanner Spinner
Never had much luck with the Molkt
Check valve clearances.
Manifold leaks.
new plug.
fresh fuel.
Choke turned off.
Air cleaner fitted and clean
Check valve clearances.
Manifold leaks.
new plug.
fresh fuel.
Choke turned off.
Air cleaner fitted and clean
rotn50
Master Spanner Spinning Moderator
get that 125 gpx goin mate??
minibiker
Well-Known Member
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Wouldve had it going ages ago but havent had time to take it to get the hole re-threaded and going for a holiday soon so will fix it after i get back
