Question about ATK 125 2-stroke Motorcycles
I have a 1991 rotax ATK 406 dirt bike I can't seem to get it to run like it should. It runs real sluggish and won't get up and go almost seems like it's not gettin enough fuel or to much or not enough spark. It starts and revs real good but once in gear it won't performe as should be.
Check the engine compreshion,,is it low??????
check the air filter is clear the engine needs to breath,,,
check your getting full throtol,,,silly i know,,but?
check that the carb is not flooding and that no jets are blocked up,
check there is a good flow of fule from the fule tank to the carb,
check the ingition timing is spot on,,if its out ,,,fix it!
change the spark plug,, for the right plug!
check that nothing is draging,,like brakes! or slipping like clutch?
if the gear box it partly sezed up,,its going to be hard to turn the rear wheel when in gear with the clutch pulled in,,,
hope this is of help to you...
Posted on Jul 12, 2010
Testimonial: "Hey thanks mike your a smart dude! I did notice however after draining the crank case and gear box of its old oil I refilled it with new oil... Anyway I put it in gear and and pulled in the clutch it was a little tough to move the rear wheel so does this mean i have a seized gear or the clutch just might need to be adjusted. I really was hoping it wasn't gonna be this problem its like the last thing i really wanna work on with this bike but i think this is prolly the problem..."
Try cleaning the fuel filter, it may be as simple as that
Posted on Jul 12, 2010
Testimonial: "That might be a simple answer for my problem but the person who gave it to me put a new carb and all new lines and i'm pretty sure a new fuel filter.. The bike sounds great when in neutral and will revv and run like a race ready bike and has no problem starting it only runs like **** when in gear and will not run good enough to get out of 3rd gear..."
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Posted on Jan 02, 2017
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