I was thinking the same thing when I read your post, "man, this guy does the whole top end of his bike, I'm sure he could have done the rest himself with no problems".

But I know what it's like venturing into the unknown for the first time.

Goodluck though, can't wait to hear how it works!

 

While rebuilding the top end of his RMX250, my son allowed the timing chain to come off of the lower sprocket. I was able to get it back inplace without pulling the side cover. But it wasn't fun. Had to do alot of fishing, but the key to it was ......... holding my mouth right. Pulling the side cover would have been easier![:@]

 

Brian, I am concerned about ignition timing. The stock CVK has a sensor for timing adjustments. Have you addressed this issue?

 

That's our throttle position sensor that connects to the carburetor - the FCR doesn't have one. Jerry says its fine to run without it - been doing it for years and years. He says to disconnect it from the stock CVK carb and then defy you to ride and notice any difference. Better yet, have a buddy either take it off or leave it on and see if you can tell whether it is connected or not without looking. He says it makes very little difference, if any at all, at least on our bike and CDI.

 

My understanding is that it controls timing advancing. If you remove it, does it default to retard or advance? Should it be replaced with an in-line resistor to fool the CDI. Can it be left in the full open position for full timing advance? It's there for a reason, just removing it seems wrong in this case. Any more info on this system would be good for me. [sm=headbang.gif]

 

Trust me if I put a curse on you it would be a cleaning curse, and we all know that didn't happen.

 

Thanks for the vote of confidence - the more I think about it, the more I think it probably wouldn't have been too bad, but I also lacked the right side cover gasket and I would have needed to order that which probably would take another week at least. I hope the dealer has one in stock so they don't have to order one. In fact, I might go ahead and order one for myself so that next time something like that happens, I'm more prepared. Live and learn I guess. I thought that the timing chain couldn't come off that lower sprocket unless more parts were removed, i.e., similar to our countershaft sprocket that has the guide on it that doesn't allow it to come off unless the guide is removed first. Otherwise I would have been more careful.

 

 

Hang in there man all good things come to thous who wait.

 

When I did my 300 mod I looked at Brian's old thread, he used a 3" hose clamp.