I searched but I couldn't find anything...so here goes.
I just picked up an '06 DRZ 400SM and put a Yosh RS3 system on. I also ordered an FMF DRZ 400SM jet kit as well.
I haven't done the 3x3 airbox mod (nor do I plan on doing it in the near future) so I figure I'm @ stg 1.
I followed the instructions given and they say to use their needle (which I did) and then use a 140 MJ. I pulled the float bowl and I've got a 142.5 MJ in there.
My question is: Will a 142.5 MJ be safe to run w/the Yosh exhaust.
Thanks in advance.