Ok guys I just bought a 87 lt250r it is pretty much stock, expect boyseen reeds and fmf silencer. It was just rebuilt by the guy I got it off off. I am new to the lt250r and 2 stokes in general. I plan on running amsoil 10w40 oil in it. Is that a good weight. Is there only one place to pour oil into? And is there an way to tell if the oil level is good? Also the pipe thats on it just slips on to the motor and is held on by a spring and the 2 bolts that attaches to the silencer. Is this normal?  Another Question I have is what size jet should I use? There is a 38 mm keihin carb on it and it has a .168 jet in it now. he said i should go down a few sized but it seems to be running fine to me. I am mostly wondering about what I should do to maintain this quad. How often to change oil? What should I check before I go for a weekend of riding? Thanks for any input.

Yes i plan on mixing 32:1 with amsoil 2 stroke oil. It also has a K&N air filter and fmf silencer on what looks like to be the stock pipe, if that makes a difference on the jetting. Also if I take the two blots out of the the silencer that bolts it to the frame my pipe will slip right off the motor if that explains it better.

I buy regular wet clutch motorcycle oil. Usually the cheapest stuff they have,no additives and change it every ride or at least every other ride. Especially if you ride hard and use the clutch a lot. If you get in that habit, you'l notice if your losing oil and not ruin your transmission and it keeps you bottom end clean.

900ml of oil in the transmission. Which a quart of oil has 1000ml.

That's like buying 9 oil changes and getting the 10th free.

Here's a link to a PDF of the original service manual that you can download or browse on the page.


http://www.mediafire.com/view/?onjk7f4773f0eu3