Jump to content
Sign in to follow this  

piston carbon build up

Recommended Posts

No, but it sure can cause increased compression and detonation/preignition, and all the problems that go with that. . (hots spots or higher compression than octane of fuel can handle.) Which is why most serious people use the best two stroke oil they can afford, along with the highest octane fuel. More octane = more resistance to detonation, and better oil means less carbon, or even no carbon. In the old days, I ran BelRay Mc1 in my air cooled two stroke and had no carbon at all. Black slime, yes; carbon, no. Most top grade modern two stroke oils don't leave carbon, or very little.

Share this post


Link to post
Share on other sites

thanks man, when i first got my 05 yz250, i used the klotz ST ( yea i know, castor ) and after about 4, 5 rides i noticed my bike had more compression than it originally started out with ( by hand cranking it before i bought it ) and i even compared it to my friends yz with a new top end, and he is using a synthetic. I have a lot of blow by from the klotz oil for some reason so i changed it to castor 927, whitch i can tell is a overall cleaner oil. I guess i will do the top end and start using yamalube

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×