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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
1999 yz250 Oil from Exhaust
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[QUOTE="rmc_olderthandirt, post: 1159193, member: 68872"] Like the others said, you bike is fine, it is normal two stroke oil out the exhaust. If you are new to two strokes, in addition to the bike being new to you, then you need to pick up a few essentials. First thing is that the oil/gas mix and carburetor jetting are connected. It is essential that you establish a gas/oil mix and stick with it. Once your oil mix is stable get your jetting right. By chance, when you bought the bike, did the seller tell you what oil and mix he used? If you know that, then keep using it as there is a chance that the jetting was previously established for that. If you don't know what it was before then pick one of your own. If you have a regular set of buddies that you ride with who also ride 2-strokes then I recommend that you choose the same oil and mix ratio that they use. This will allow you to share gas without any concerns. Unless, of course, your buddies are leeches in which case you might want to do something totally incompatible! The oil out the exhaust is pretty much a fact of 2-stroke life. Running excessive oil makes the problem worse, and can lead to fouled plugs. Not running enough oil can destroy the engine. Rod [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
1999 yz250 Oil from Exhaust
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