Help!!! 2000 Phaser only pulling 6000 rpm

[Barton]

Ran this in the yamaha section but I am desperate...

New crank and pistons. Engine runs fine. Lined everything up...so I thought. Clutches were fine when I pulled it apart. Now on the track stand it will only pull 6000rpm...same on the ground.

Wanted to ride in the morning...any ideas where to begin.

Belt seems to be a bit tight so I am going to try to move the engine closer to secondary and see if that helps.

 

[amcf18]

I wouldn't think the clutching should hold it back on a stand. Make sure the carbs are both opening fully and evenly, is my first thought.

 

[Barton]

You wouldn't think so would you.

I never touched the carbs when I took it apart. Will check them though. Thanks.

 

[Barton]

arrrgggg!!!!

 

[Q-BALL]

verify ignition timing? retarded can prevent reaching max.operating rpm.
both clutches shifting properly?
belt within tolerances?
no pinched fuel or vent lines to prevent full flow under load?

 

[Barton]

Clutches seem to shift properly, Tried it with a new belt plus two used and same result. I've never checked timing on a sled before. What is the procedure?