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1983 yz 490 frame is it the same as the 1986 yz 490?
No. The 83 has a single front downtube and the 86 has a double downtube.
How fast is a yz 490?
depends on yr, weight and gear ratio. I had a 94 and it was bout 80+, but hard to gauge when trail riding.
How do you change the oil on a 1986 Yamaha yz 490?
Step 1 Drain it Step 2 fill with 2 stroke oil
What is correct spark plug gap for Yamaha yz 490 motorcycle?
1982-87 yz 490 - ngk br8es - 0.024 " , 1988-90 yz490 - 0.032 "
Will the exhaust from a 1985 yz 490 fit on a 1984 yz 490?
Yes it will. The 1984 yz490 and the 1985 yz490 are identical bikes other than the front disc brakes.
What is the horse power for a 1982 Yamaha yz 490?
55
How much horse power dose a yz 490 have?
55 hp
Fuel oil ratio for Yamaha yz 250?
32.1
What is the difference between the it 490 engine and yz?
1. it490- 5 speed....yz490 4 speed. 2. yz490 has lighter, balanced crankshaft. this motor spins easier and higher, however, this is what causes the vibration as a yz/it piston is a heavy thing. 3. Same cases. 4. yz piston has slightly higher dome (more compression) 5. yz barrell has bigger exhaust port, however barrels are interchangeable. 6. 40 mill carby for yz- it has 38 mill. these are interchangeable. there may be more differences, i havent really checked properly, however there is interchangeability as mentioned.
What is the oil mixing ratio for a 1989 YZ 80?
50:1
Will a YZ250 1982 exhaust fot a 1981 490 Yamaha yz?
That would be a negative.The 490 which is probably a 1982 model as 1981 was a 465 were all side exhaust ports .The 82 yz 250 was a centre port with a twin tube frame. Also the expansion chamber on a 250 needs to be much larger than on a 490.You can get a new pipe from DG in usa or watch ebay. Good luck.
Will a 1984 yz 125 air filter cage fit on a 1986 yz 125?
Yes the specs were the same for thoise years.
