Carls 910 Polaris edge compression ratio

[mbigbore9]

I have a Carl's 910 and I'm trying to figure out what CR domes I have. Is it marked on the top of the dome or do I need to cc them?

 

[jim]

Just call the service department at Carl's...they are great and will help you out. They put their own twist on a lot of things in those motors....

 

[mbigbore9]

Just call the service department at Carl's...they are great and will help you out. They put their own twist on a lot of things in those motors....

I did, the guy said ah maybe its marked on the dome not sure. I guess I talked to the wrong guy. I could try them again and hope for a better response.

 

[05rmksteve]

If I remember right mine where marked on the coolant side of the dome. Its been awhile since I've had mine apart.
You might be better off cc them because I know I have 1 set of domes that have been milled so the markings stamped on the domes are not correct.

 

[mbigbore9]

Right on 05rmksteve I appreciate the info! I'll pull my head off and take a peek. I assume I can mill them if they are low compression domes? I only ride it out west and would prefer them to be high comp.