I'd like to know a base line jetting, just to get me started in the right direction. I know its been asked a thousand times but I couldn't find the thread I was looking for, I looked on about 17 pages of jetting info. I have a 97 CR250 with an FMF burly and a Turbine Core 2 and Mo Better porting. It has the stock jets, 175 main and 55 slow. It feels pretty good on top but I think it has a lean bog down low. I also plan on going one step hotter plug because all I ride are trails. I live in west MI, about 1000 feet, and temps are all over the place. General riding temps are from 40 to 85 deg. I've only had the bike a short time and didn't get much riding in before snowfall, so a good starting point is all I'm looking for, so any advice is good.
And for my second ?. I think I can hear my reeds fluttering at very high rpm's. I don't know if that's normal or if that's actually what I'm hearing. I plan on putting FMF Torque reeds for spring because I don't know what condition they're in anyway. Thanks for any info. :think:
And for my second ?. I think I can hear my reeds fluttering at very high rpm's. I don't know if that's normal or if that's actually what I'm hearing. I plan on putting FMF Torque reeds for spring because I don't know what condition they're in anyway. Thanks for any info. :think: