WHat year Yamaha FZR1000 motor can i swap in my 1989 Yamaha FZR600??

Question

I have a 1989 yamaha FZR600. The piston rings are going and the clutch. A buddy of mine suggested instead of crapping the bike, to just swap it for a better motor. I want to know if i can get the FZR1000 motor in my frame. I dont know what the deminsions are or anything, so i am seeing if anyone knows some refrences or has already done this

Answer 1

I've never heard of this swap and find it highly unlikely that it will fit as the fzr600 motor is basically a stroked fzr400 motor, hence you can put the 600 in a 400 chassis.

Answer 2

The hardest thing to do with motorcycles is swap out different motors. Bikes are so tightly designed that changing the motor can have huge bad effects. The 1100 motor is heavier, wider, taller and has enough power to bend your 600's swingarm upward! The 1100 motor is also going to cost more then an overhaul of your present motor.
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First: Adjust the clutch properly, and change your oil.
You should be changing your oil every 2,000 miles if you ride hard. If the clutch adjustment doesn't work, you need to inspect the clutch plates and replace them if they are worn or in your case, glazed.
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Otherwise think about selling the 600 to someone who doesn't know you and buy yourself a bigger machine.