85 ATC250R/CR500 short track three-wheeler racer

[DirtDemon]

Originally Posted by HondaATC

It works, not real well, but it works. Typically, starting a CR500 even with the original long kickers, and everything tuned perfectly, is something like kick kick kick kick common you mf'er kick kick kick huff huff huff kick kick ah you piece of crap BRRRAAAAAAAAAAP! In otherwords, it hardly ever starts when you want it to, and by the time your huffin and puffin out of breath and ready to give up, it cranks up. As a rule of thumb at the last race, I started trying to crank one full moto before I needed to be in the grid, and by the time I got the thing running it was just about time to get on the track. I even modified the piston to lower the compression ratio, and that helped, but didn't make enough difference. A lot of guys install de-compression valves in either the cylinder or the head. I might end up doing that eventually but just not interested in doing that at this point in time.

I don't know what the top speed is with the 15/36 gearing but I was running the Cross Roads track in 2nd and 3rd gears only if I remember right. You could have MAYBE used 4th if you were wanting to be real ballsy but I dunno, it'd be iffy. Theres a race on the 17th in Ocala on a 3/8 mile stock car track, Hopefully someone has a radar gun cause I'm gonna try and open it on up

Yeah, they are a bitch to start. Mine is a bit tough when it's cold, but not too bad, a little starting fluid will do it every time if it is being real stubborn. I'm sure my long kicker and 215lb. ass make it easier. It starts up pretty easy once it is warmed up though.

[HondaATC]

I modded an 01 CR250 digital ignition setup that was on my 270 last season that came from ESR slightly and made it fit on my 500, much improved in the ability to start up.

[chavo80]

Originally Posted by HondaATC

I modded an 01 CR250 digital ignition setup that was on my 270 last season that came from ESR slightly and made it fit on my 500, much improved in the ability to start up.

how so can you get some pics of that please....

[HondaATC]

Not at the moment since its mounted. The easy starting didn't seem to last, for some reason ad its just just as stubborn now as it was with the old setup to start (But it still runs way better once its going then it did with the old ignition). Basicly the mod the 250 stator plate, put it in a rotary table on a milling machine, and remove the back shoulder where it will fit down flat around the cases on the 500. Thats pretty much it. You could even do it with a dremel if you wanted to, just wouldn't be as clean.

[slammed2Stroke]

looks so mean