What does this mean?

[Regalgse00]

What does it mean when your going down the road and I go to slow down and pull in the clutch. The bike revs up real high and stays there until the bike slows down more. I have a pz16mm carb and a window piston and a reed valve with a mz65 pipe.

 

[Chainlube]

sounds like an air leak, check the reed to cylinder connection.

 

[Regalgse00]

I don’t think it’s that cause this did this with a different carb and with a non reed setup.

 

[Regalgse00]

I was assuming it’s stuck rich at those moments like I have to big of a idle jet.

 

[Wrench]

I don’t think it’s that cause this did this with a different carb and with a non reed setup.

Air leak can be coming form somewhere else

 

[Regalgse00]

Air leak can be coming form somewhere else

This also happend with a new engine. I was noticing this more after I put on the mz65 pipe. Like maybe there was unburned fuel in the pipe and being burned off at the wrong time. I’m not sure.

 

[GreasyChris]

It's going to lean when you release the throttle and pull in the clutch. Try a bigger pilot jet.

 

[Regalgse00]

I’ll try it

 

[Regalgse00]

It's going to lean when you release the throttle and pull in the clutch. Try a bigger pilot jet.

Well it’s still doing it. I put a 40 idle jet in it and still does it. So it must have a vacuum leak on this brand new engine. I’ll have to take the covers off and spray around.

 

[mony0_3]

I'm having the same issue with a brand new engine. It's running lean even with a #75 jet. Has to be a bad case gasket or seal.