What do I turn the motor with to unseize my engine on my 87 CBR1000F! When i got the bike it had been sitting in a garage for like 2 years but before it was parked in the garage it ran perfect they just wrecked it and meesed up the body some but it still ran like new when he parked it! So now its been sitting up for a total of 5 years i have done everything else that needed to be done like the tune up and other stuff this is all that is stopping is my motor being seized and i cant get any answers please everyone i need your help whats your suggestions for me to unseize my motor on my 1987 hurricane cbr1000f help me please im ready to get my bike on the road

 

What is telling you the engine has seized ?

 

Remove plugs, shoot penetrating oil into the cylinders?

Only seized motorcycle engine I dealt with was a simple old 250cc Kawasaki 2-cycle years ago. Shot WD-40 into the cylinder and waited a couple of days and it turned over. Still had to replace the piston and bore the barrel a few months later, as the skirts were pretty scuffed up, but the WD-40 at least allowed it to run again.

Gotta wonder, on the CBR you speak of, if it's really seized, might that be the root cause of the crash? I've seen bikes sit for decades without a problem with seizing.

 

1) If you haven't already, confirm oil level. Some folks drain them for storage and you don't want to be cranking away on a dry engine

2) Confirm that the engine has actually seized. Remove the left generator cover and try to turn the large nut to rotate the crankshaft. If it rotates, you're probably looking at a dead battery, main fuse, switch, or starter. If it won't rotate, that would tell us that the engine is seized

3) When you say you tuned it up, was it running then? You'd need it to run for that, no? When was the last time it ran properly?

 

Makes me wonder if the cam chain had broken, or jumped a tooth or two which is likely in a crash, and the valves have stopped the piston from doing its stroke.