Honda-SOHC

SOHC.co.uk Forums => CB500/550 => Topic started by: mickwinf on October 15, 2011, 10:32:50 PM

Title: locked up 550
Post by: mickwinf on October 15, 2011, 10:32:50 PM

i have just fitted exhaust and carbs to the 550 i am rebuilding but when i tried to turn the engine on the kickstart
 it locked up solid. bummer.it feels like a valve hitting a piston, it will turn backwards and forwards a certain amount but wont go any further.The thing is it was running ok before, and i have not stripped the engine except the outer covers. i have removed the rocker top but it still locks. all the valves seem to be closed and plugs removed so i don't think it is valve timing.Any ideas anyone?

Title: Re: locked up 550
Post by: SteveD CB500K0 on October 15, 2011, 10:47:45 PM

If all you did was remove the outer covers, then you must have put them back wrong.

Take them off again and turn the engine via a socket on the end of the crank.

Then put bits back on until you find the place where it stops...

Title: Re: locked up 550
Post by: mickwinf on October 16, 2011, 06:20:39 PM

took your advice Steve, it came loose when i took the alternator cover off but still dont know why, there are no loose bolts or anything to get jammed.Strange!

Title: Re: locked up 550
Post by: Bryanj on October 17, 2011, 06:23:17 AM

If you removed the screws holding th ecoils they can move and jam on the rotor OR one or more of the locating dowels for the cover are missing

Title: Re: locked up 550
Post by: mickwinf on October 17, 2011, 08:29:55 PM

thanks Bryan will check