For some odd reason, I noticed while working on my blaster that when you leave it in nutural (or pull in the clutch while driving) and rev it up and hold it there for a few seconds it sounds like it is fluttering, or bouncing off a rev-limiter. It's really quite noticable..However, when cruzin around and you pin it, its not there and it works perfect. I did a few plug checks and found that its right where it should be so Im not sure what it could be. I know it dosn't really matter, because it only does it in nutural but its kinda wierd.

Do you think that it could be just a bad spark plug?
I am leaning towards a bad spark plug for this reason : A while back I blew a seal on the crankcase and my motor was sucking in oil from the transmission and burning that (well, trying to burn it) I got it all fixed up and I still have that same spark plug in it now that was in it when the seal went. Do you think the extra oil being burned could have damaged the plug somehow?

Thanks
Junior

 

Anyone have a idea?

 

Sup man
Ya, for sure, I bet that plug is proble kindda dead, Once they get that ol on them they are usually done for
what does that run., I have some bran new pluges left over from teh CR if they are the same
BR8es and i got some BR9es
let me knwo man

 

they are 8's..i just went up and picked up one, i'll chuck that in and see how it does.

 

Didn't seem to help...
Could this be a jetting problem that im just not catching on to??