jetting

[jimlogan]

my brother just bought a yfz 2008 with a yoshimira full system on it I was wondering were to start with the jetting? the air box lid is on and we are about 2000 obove sea level. Thanks for any info

[jimlogan]

I forgot to add that the guy that put the pipe on did not jet it

[06YFZ450SE]

Originally posted by jimlogan
my brother just bought a yfz 2008 with a yoshimira full system on it I was wondering were to start with the jetting? the air box lid is on and we are about 2000 obove sea level. Thanks for any info

Its probally running lean. I would go up to a 168/170 main and 45/48 Pilot Go from there and see how it runs. If you want to get a adjustable air/fuel screw lot easyer to turn the stock one. Get a clip with more then one clip.

[jimlogan]

thanks for the reply