What causes a TC jumpy start

[Britcom61]

I have a tecumseh 6hp and have got the motor running pretty good but have a problem on my take off. It has a comet TC with the belt system going to a driven side with a chain drive. I did tighten the chain by sliding the motor back a little and think it might be a little too tight, would that cause the cart to jump forward 2-3 times until it is engaged and takes off fully. I would like to get a smoother take off from a standing start. The pulleys are lined up as close as possible so I don't think that's the problem. Anyone have any other ideas?

 

[dave1701]

Definitely loosen the chain. There should be at least 1/4" of play in it. Make sure you watch it too, though. Sometimes when you tighten the bolts to the motor the chain tension changes.

 

[bighead]

I have a tecumseh 6hp and have got the motor running pretty good but have a problem on my take off. It has a comet TC with the belt system going to a driven side with a chain drive. I did tighten the chain by sliding the motor back a little and think it might be a little too tight, would that cause the cart to jump forward 2-3 times until it is engaged and takes off fully. I would like to get a smoother take off from a standing start. The pulleys are lined up as close as possible so I don't think that's the problem. Anyone have any other ideas?

Clean and service the primary clutch.

 

[Britcom61]

Already done, lubed it with Dry Graphite Spray, cleaned the two surfaces on a bench grinder on wire wheel side. Not sure if I can do the same on the driven side? I have not tried to take it appart to clean the surfaces.

 

[bighead]

How is your belt? New? old?

 

[Bluethunder3320]

take off would be affected by the driver i assume.

lets see a pic of this thing.