Yamaha XL 1200 top end rebuild

[leon phelps]

Re: Yamaha XL 1200 top end rebuild

Whitey,

to answer your question....no.

You may be able to do one cylinder, but it will not last long. When you change the bore, you are making more energy from that cylinder. The crankshaft will eventually fail from the unbalanced load the cylinders are putting on the crankshaft. You would probably notice an uneven idle also.

[harveynailbanger]

Re: Yamaha XL 1200 top end rebuild

all three pistons are bored and set of identical pistons installed. this doesnt address the dry rod ,be very certain crank and bearings and rods and bearings are in good shape or all your work and money will be for nothing. youll get far enough away from dock to be be really pissed. when you find out u have to replace motor.also very good idea to go get a clymers manual for your ski. very helpful. keep us posted and good luck
Rick

[skraggy]

Re: Yamaha XL 1200 top end rebuild

As TS mentioned earlier in this thread....That motor is done...top to bottom,I would almost guarantee it.With that much damage on the top end,there is no way the lower end did not get damaged....bearings are very crucial and do not like particals.

[Riixxii]

Re: Yamaha XL 1200 top end rebuild

Motors Junk. Get a new one complete. and what are you guys smokin anyways? One oversize hole will wreck the crank and even idle erratic? Get real

[harveynailbanger]

Re: Yamaha XL 1200 top end rebuild

you guys?easy rixxii thats what we told him,as for what im smokin i did get a healthy dose of smoke after gettin that vxr goin that everyone said was toast(cough,cough)

Cheers:beer