housher crf hybrid?

[CHARLES Andrews]

I need to know what length rear shock I need for motocross. Also the motor stops pulling stong on topend. Not sure if its the jetting or the stock cdi box? If has a ftz head. Any comments would help.

[hontrx265r]

I think houser is 17.5 in no link

[CHARLES Andrews]

any info on a aftermarket cdi? also need a pipe that meets the 99 decible limit.

[CHARLES Andrews]

Raced the bike at Elizabeth City TT. The jetting was off, went from 170 to 185 main, put amsoil in the crank side, and liquid performance in the radiator. bike ran great. Rode good but blew it in the main. Anyway not bad for my first time on the bike.