I think I may have a compensator failing. My bike cranks fine cold but clunks badly on a hot re-start - sometimes sounds like it's not gonna start at all. I'm talking trying to re-start 2-3 minutes after shutting if off. The longer it sits the less "clunk", when cold no "clunk" at all.

Anyone know if this is a symptom of a bad compensator?

Thanks in advance for any help on this. I've got some touring coming up and don't want to be spending my time on the roadside.

R0ckie

 

Sounds just like mine did. Put in SE comp., no more clunk, easy start/shift.

 

Hot starts require a battery, cabling and starter/solenoid to all be working well to turn the clutch basket, then primary chain, then the compensator thus turning the motor over.

If it is not turning over, look at the electrical.

heat builds resistance in circuits, poor connections generate heat, which build more resistance and more heat...( so it's like snake swallowing it's tail)

mike

 

I had the bang,clunk,grind symptoms. SE comp stopped 99% of it. Still does it once in a great while.

 

On a 103 or greater....Do you have Auto Compression relaease. If not Then your starter has a challenge. and will seem like bad battery. Clunk, rip, gag , gasp, etc.....

Fix is to add ACR and I would probably go add the heavy duty Starter along with the Sreamin Eagle Comnpensator.

 

It sounds like my bike before i replaced the compensator. I also had to replace the starter clutch too. I let the comp go for too long and it took out the starter clutch. If you do the compensator make sure you spend the extra money on the SE comp. Also search around cuz theres a fantastic thread with pics that will help you do the job yourself.

 

+1 on starter clutch but will say prolly went bad due to comp!

 

Had my se comp installed about a year ago and i have gotten two maybe three bangs (clunks) and thats it. Very happy with it.

 

Hot starts cause higher compression pressure. I would bet you are hearing your starter clutch slipping rather than your compensator. I installed the heavy duty 1.4 kw starter and the bang is gone. I was going to do the compensator also but the starter failed and after installing the new starter I see no need.

 

The starting 'bang' I used to hear on my 09 UC went away with the SE compensator install. With that and a pair of S&S EZ start cams it cranks and starts beautifully. I reckon my starter clutch will last a loooong time...