147motox

Member
May 16, 2007
2
0
i had my head ported and then i have a boyensen quickshot accelerator cover and a big gun exhaust. but it doesnt seem any faster than my 2006 with just the boyensen accelerator cover. what could be wrong with this? any help would be appreciated
 

Ol'89r

LIFETIME SPONSOR
Jan 27, 2000
6,961
45
It would depend on who ported your head and if they knew what they were doing. The ports on most modern fourstrokes are very good from the factory. They only require a little clean-up to make them perfect. Extensive porting usually results in a loss of power.

Just my $ .02
 
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