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Engine full of fuel and seized up

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rosco:
Have you thought it could be the gearbox stuck???  My brother bought a cb550 with a "seized engine " Turned out something in the gearbox let loose [ can't remember what ] and jammed the gears and broke a few teeth Try pulling in the clutch  and using the kickstart  If the kickstart don't move its the gearbox If it does move more than likely engine  Good luck   R

royhall:
For what it's worth I think I would take the clutch plates out and try and gently turn the crank with a spanner on the timing end. It's going to be tight as it will have washed every bit of lubrication out on the engine. Oil pump strip required at the very least. Starting it now with petrol washed through the bearings would be a big risk that could cost a crank. Only real safe route is an engine strip.

Bryanj:
DO NOT TURN THE CRANK AT THE TIMING END
If you try you will wreck the advance unit. If you want to try turning the crank remove the generator cover and try on the big bolt holding the alternator rotor

royhall:
Why would you wreck the timing unit, that's how you get tdc to set your timing? I'm not meaning to put a drill on it and spin it up at a 1000rpm, just a few very gentle mm's with the big keyed to the crank special nut (as Honda Calls it). Or have I lost the plot again. LOL.

PJM47:
So in neutral with clutch held in the kickstart still won’t move. Does this mean more likely a gear box problem? I can select neutral and gears ok.

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