05-20-2010, 09:39 AM
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Join Date: May 2010
Last Online: 10-15-2010 03:05 PM
| | 05-07 CR250 Head
I have an 07 CR250. Has anyone used a VHM or PhatHead head on the 05-07 CR250? I am fixing it right now (transmission problem) but I want to run 93 octane pump gas in it without the pinging and detonation. I plan to double the base gasket or get an aftermarket head. I read up on VHM heads and they reportedly leak between the insert and head. PhatHead has the same type head system, but no reviews. I don't want to up the compression since it has too much already (thus the pinging and deton.). Any help is appreciated.