How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Fast by Basque Your Own Question
Fast by Basque
Fast by Basque, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 99
Experience:  15 years in multi-line dealers, and 5 years of unofficial experience; specialized in engine building
Type Your Motorcycle Question Here...
Fast by Basque is online now
A new question is answered every 9 seconds

why is my 82 yz490 such a powerful bike

Customer Question

when u gas it it just wants to wheelie and rip u off the seat why is it so powerful
Submitted: 8 years ago.
Category: Motorcycle
Expert:  Fast by Basque replied 8 years ago.

ah one of the good ones!. well they work exceptionally well. they run a 2 stroke air cooled engine . bore of 87mm and a stroke of 85mm , overall displacement = 487cc. engine is classified as a torque induction.with a compression ratio of 7.0:1 .its fueled through a huge 38mm carb mikuni 38ss/5x6-00 , runs a main jet of 440 (wow) and a pilot of 50.these engines are tuff as long as you are anal on the maintenance. run excellent fuel, top of the line 2 stroke oil, and a well recommended base oil. always keep the air filter clean and heavy oiled , good idea to have a spare on hand so you have a clean one every ride.

hoped this helped you if so please accept, thank you.

Customer: replied 8 years ago.
yes but is the front end to light or is the hp too much and what is the hp and top speed of this bike?

Related Motorcycle Questions