Sounds like it's fat on the pilot and main. What are you running for jets and carb? I had an 88 TRX250r with an 86cr500 for many years. Wish I still had it....Somehow, by the grace of god, I miraculously got this thing to start. Holy fuck. The 500 kicker ground down doesn't really work that great, and there is a useless curve in the silencer pipe that doesn't help, although I think the secret is to kick it from 3 clicks above being bottomed out on the foot-peg anyways. Had the pipe explode/blow apart a bunch of times before I finally got it started. Rode it briefly, remembered @ the end of my driveway/top of 1st gear that I had no brakes, that was fun. Hit third on the street but it was breaking up and then died. Another day.
Definitely vibes like crazy at idle but I feel like with an anti-vibe stem & balanced crank it would be money.
1 post in 8 years. Belated welcome to the site lmao.The problem with Hondas is that everyone of them eventually cracks a frame. Especially the TRX's. I had an engineer buddy who worked for Boeing that even built his own frame from scratch back in 97 using the Honda geometry and that big 500 shook that one apart too. The ATC's aren't as bad, but they still do it. Honda just didn't design the trikes and quads for that kind of vibration. Kawasaki did in their KXT's. heh heh. Plus it nearly bolts right in. Will do another one of those someday. Just gettin' hard to find an 86 KX5 these days.