dsm_racing
05-14-2008, 02:55 PM
I bought my bike a little over a year ago. It ran good when I bought it, and I've just been riding it and enjoying it, but I haven't really learned much about tuning it. I'm usually a fuel injection guy. Here are the current mods:
1999 400EX
12.5:1 Wiseco 440
LRD full exhaust
K&N filter w/ sock air box and lid
The bike came with a stock cam, and I don't know what the jets are. I run 100 octane av-gas in it and haven't had any problems.
I decided recently that I want to upgrade it a little. I purchased a Hotcams Stage 2 and I did the Outerwears lid mod. I went ahead and bought a jet kit when I ordered my cam.
My question is, how should I jet it and tune it once I get it running? I don't want to blow it up breaking the cam in, and I really don't know a thing about setting it to idle and run good with the carb adjustment screws. Does anyone have any links to good threads? I've spent hours searching and reading the forums and haven't gotten much more than a basic understanding of how things work and a headache. :huh
Edit: Oh yeah, I'm about 1000' above sea level.
1999 400EX
12.5:1 Wiseco 440
LRD full exhaust
K&N filter w/ sock air box and lid
The bike came with a stock cam, and I don't know what the jets are. I run 100 octane av-gas in it and haven't had any problems.
I decided recently that I want to upgrade it a little. I purchased a Hotcams Stage 2 and I did the Outerwears lid mod. I went ahead and bought a jet kit when I ordered my cam.
My question is, how should I jet it and tune it once I get it running? I don't want to blow it up breaking the cam in, and I really don't know a thing about setting it to idle and run good with the carb adjustment screws. Does anyone have any links to good threads? I've spent hours searching and reading the forums and haven't gotten much more than a basic understanding of how things work and a headache. :huh
Edit: Oh yeah, I'm about 1000' above sea level.