Dirt Bike Modifications Forum

Actually, adding more oil to the fuel will lean it out, The oil will increase the viscosity of the fuel allowing less flow through the jets. It may only be very slight, but it definately wouldn't richen the F/A (fuel/air) mixture.

For some reason i doubt that its my jetting. the jetting wouldnt cause the engine to be slammin and clankin around with alot of racket. i have jetted it three times and now the plug shows the jetting is correct but the engine is still messed up and makes noise still. every time i ride the bike it gets louder and recently it pretty much just stopped running. i took it apart and there are no signs of anything wrong.  

hey if you don't know what your talking about please don't talk the increase of oil to gas will not affect volicity. i mean it will if you add the whole quart of oil to the gas but other than that it would either rickin or lean the mix. that is why on  your bike you would increse oil for higher octain gas dumb ass. be couse the oil protects the cylindeder and lubs the crank bearings so really it is better for your bike.  

I really think that it could be your rod bearing slopping around that would explain the noise. look at the up and down play of the rod that will let you know. P.S (lukesracingengines.com) has great rebuild kits.  

Calm down kid, you don't need to get all excited and start name calling. I'm not going to intentionally mis-lead someone with bad information, the information I gave was correct. If you have significant documented proof from a third party to show I'm wrong, show it to me because I'm always willing to learn something new.

Alright heres what i found.... the top of the piston is pitted towards the exhaust side.. it looks like a little bit of dirt got into the engine.. also the piston looks like my mixture was lean.(you guys were right about the jetting) im going to put a new top end in the bike and go back to stock jetting and start from there.. i will also get a new air filter to be sure no more foreign objects enter anymore... thanks alot... any more input would be helpful..  

Make sure the piston is the right way. Theres usually an arrow or a mark on the piston...check your manual. That might have been what was causing some of the noise.

I take that back, I dont even know if it would run if it was the wrong way.

Yea i might have gottin a little excited and sorry for that but i did go to a profecional mechanic to insure that my info was straight and he sayed if you add alot of oil to you gas it will effect it but if you tuning is right and you want to play it on the safe sid you can add a little oil to you gas. so i can see were you commin from and no you can use it in the case where drastic tuning is needed but for fine tuning yes it is safe to add or subtract a little oil from your mix.  

I accept your apology ktmkid. With that said I just did a quick search for carb tuning and fuel/oil effects to ensure that the information I gave was correct. at this site: http://www.eric-gorr.com/twostktech/carbtuning.html I found the following paragraph that confirms what I was saying about more oil in the fuel leaning out the a/f ratio.