May 20, 201214 yr What is the best oil to use for engine/ gearbox. Just got bike and clutch dragging a little. Noticed slight brown gunk in water bottle also.could this be water pump seal and if so where is it. Is there a workshop manual available for this model. Many thanks
May 20, 201214 yr I have a 94 JT25 and I have found the best oil to use is ATF. When my clutch starts to drag I simply change the oil and it is fixed. If you have oil in the radiator or water in the oil, the water pump seal is the most likely culprit. The water pump is located on the right side of the engine. Follow the water hoses down from the bottom of the radiator and there it is. You can unscrew the 2 bolts and the water pump comes right off. The seal is an easy job once you get the old one out. Try to pry it out rather than to drive a screw through it to pull it out. The bearing is right behind the seal and if you drive a screw in, you can damage the bearing cage and then you have to pull the whole clutch side cover off (guess how I know). There is not a workshop manual but there are many you tube videos made by Jim Snell than cover many of the maintenance items such as this.
May 20, 201214 yr Author Excellent. I'll try that next weekend. How much oil should I be putting in. Thanks again. Knowledge is the key!
May 21, 201214 yr Excellent. I'll try that next weekend. How much oil should I be putting in. Thanks again. Knowledge is the key! We usually ran 650-700cc's with good results. Jon
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