Riding through water up to or over the foot pegs. Or storing it in a garage that has the heat on and off several times. The water could come from condensation building up from frequent heating and cooling of garage.
when the ttr 90 is flipped over oil pours into the airbox.
2.16 oz my ttr 125 takes 900mls to 1 litre
Rear main valve seal
yes if it is 4stroke witch i think ttr 90 is! use good type of gas, you have separate place for engine oil, but with 2stroke engines you have to mix gas and oil together.
20W-40 is best - Yamalube
I believe it's 20W 40, if this helps.
a ttr 90 goes about 35 to 40mph.
The precise type of oil that a Yamaha TTR 90 dirt bike should use can depend on the year the bike had been manufactured ad should be listed in the manual for the bike. For a 2002 Yamaha TTR 90 bike, the recommended oil type is 10W-30 (when 10 degrees Fahrenheit or above) and 20W-40 (when 40 degrees Fahrenheit or above).
it would have to be the Yamaha ttr 90
TTR 110 Or a ttr 90 , The ttr 110 has a 26 inch seat while the ttr 90 has a 24 inch seat
10w 40, I use vavoline for all of my bikes
For any country outside of Japan, it would be.