just finished rebuilding the top and bottom end on the kx65 and put the engine and everything else on. The rebuild went together very smooth and I could shift through all 6 gears and everything before I put it back on. Today I finished putting the engine on and had everything hooked up like it should. Tried cranking it a few times and had no success. I've kicked it at least 150 times today and I've gotten it to idle by twisting the carb screw all the way in, but the bike will only idle for a few seconds then bog out. Also the chain is not on right now, but when I cranked the bike up while it was in neutral I noticed the front sprocket spinning.... That's not supposed to happen! And when I pressed the throttle the sprocket spun even faster while in neutral! I also shifted through all the gears and it accelerated like it was stuck in first gear, no matter what gear it was in! And I coukd tell if it was in neutral or not because I could spin the sprocket freely, however when it was in first gear I couldn't spin it. So I'm extremely confused. Anyone have any theories?
65 Kx65 issues after rebuild
- Thread starter Lovespeed
- Start date
https://youtu.be/VyojoIFPPyo
Here's a link to a video so you can hear how it sounds. Also notice it smokes A LOT!!! Not sure why, it may be a hint to one of the issues... And the smoke smells very strong.
Here's a link to a video so you can hear how it sounds. Also notice it smokes A LOT!!! Not sure why, it may be a hint to one of the issues... And the smoke smells very strong.
I have theories. Also some amazement at your ability to get things sort of right and still be "sort of lost". YES your bike will actually turn the countershaft over in neutral when the motor is running without the chain on. So will any vehicle that I know as long as there is transmission oil in it.
Your bike sounds puking rich. As usual you leave out any mention of how the plug looks and how you set the float etc. My guess is that you also oiled the cylinder a whole lot.
Your bike sounds puking rich. As usual you leave out any mention of how the plug looks and how you set the float etc. My guess is that you also oiled the cylinder a whole lot.
Don't worry about it spinning faster! It's still in neutral and if you hold on to it it won't move!
Take and post a picture of your spark plug!
Take and post a picture of your spark plug!
Surely not
@Lovespeed 
Did you strip the carb? 
If not yet then please ensure the outside of the carb is immaculate clean before you open it up!
Didn't read me closely on the sprocket did you?
Oh. Well let's see if we can use some logic!! The sprocket doesn't turn when the engine is off on it's own. But if the engine is running it turns both in gear and in neutral. So we can safely conclude that the engine spinning is in turn causing the sprocket to turn. Is it a big stretch of your mind to also conclude that if the engine is making the sprocket turn, that the sprocket will turn EVEN faster if the engine speed increases??????