Join Date: May 2000
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Re: Header Pipe Question and Black Goo?
ummm...the blaster has 2 springs that hold it in place, once these springs are removed the pipe will pop off fairly easy. Once it is apart, and the pipe is off, I would recommend running some cleaning solvent through the internal of the pipe and then after it dries, silicone it to the head...but dont use too much...just a nice fine layer will work.
The spark plug test is pretty much what 10X stated, but I recommend that when doing this...spend the extra jing on a new plug so u can get a TRUE reading...
as far as the jetting, leave it be and run high octane gas and we run yamalube 2R in all the machines we have....
the YZ250 had a similar problem, so we emptied the tank and all the gas from the carbs and lines, ran it at high octane 32:1 with yamalube 2R and cleaned the pipe and repacked the silencer...no more black goo from that ride....never messed with the jetting...
one other thing, how much oil in the air filter?????? remember not too much that can affect it too
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