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Messages - PJM47
61
« on: October 06, 2020, 07:56:04 AM »
Clutch basket back in and ithe kick start won’t move again. Teeth on kickstart and clutch basket all good.
62
« on: October 05, 2020, 07:01:25 PM »
Yes anti clockwise, it actually turns both ways. will check things you suggest and and try the basket back on tomorrow.
63
« on: October 05, 2020, 06:30:14 PM »
So clutch basket is now out and the kickstart now turns freely. The rear wheel also turns freely now when in gear. The engine still turns over on the alternator nut. Not sure wher that leaves us?
64
« on: October 05, 2020, 05:20:52 PM »
So I've had a bit more time to look at this now. I can actually turn the engine over at the alternator, probably wasn't trying enough before. So that is good. When in gear though I can't turn the engine with the rear wheel and the kickstart is still locked solid. With the clutch removed the inner turns ok. The outer clutch basket I can't move by hand but it turns when I turn the engine over with the alternator bolt. I can select gears ok and i can select neutral. I guess this is a gear box issue? Maybe as a result of trying to use the kickstart when the starter wouldn't turn the engine when it was full of fuel, does this sound logical? Any ideas what might have broke?
65
« on: September 02, 2020, 12:40:10 PM »
Yeah inner of clutch is free outer is stuck. No movement at all at the alternator it’s locked completely solid.
66
« on: September 01, 2020, 07:31:32 PM »
Ok ta, will whip the alternator cover off and have a look tomorrow. All gears seem ok. Haven’t investigated the carb problem yet as this will be minor compared to the damage it’s caused. probably one iof the overflow pipes blocked which in combination with a leaking float needle and leaving the fuel on ended in disaster. I’m in PO8 area of Hampshire. No hurry to get this fixed, probably an over winter job and I don’t mind paying a reasonable amount or supplying as much tea/beer/bacon as needed. It is (or was) a nice bike.
67
« on: September 01, 2020, 06:03:17 PM »
I’ve taken the clutch out and the rear wheel/clutch inner turns ok when in gear. Kickstart still won’t move. Like you say no point forcing anything, if it wasn’t broken it would turn easily with the plugs out.
I’m a fairly competent diy mechanic and will tackle most jobs but obviously this is pretty major and might be best left to a professional, ouch!
68
« on: August 31, 2020, 06:58:45 PM »
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.
69
« on: August 31, 2020, 11:29:03 AM »
Thanks for all the replies an sympathy  It was only turned over a few times on the starter so maybe damage isn't too severe. Every part was completely full of fuel though. Anyone have an idea of how much an engine strip and rebuild would be or would i be better of looking for a complete replacement engine?
70
« on: August 30, 2020, 12:14:51 PM »
Yeah sumo drained, spark plugs out, still stuck solid, sounds pretty terminal, any ome know a good engine repairer?
71
« on: August 30, 2020, 09:48:37 AM »
I don't think there is fuel left above the pistons now, but the engine is locked solid, like something mechanical completely jammed there is no give at all.
72
« on: August 30, 2020, 09:36:08 AM »
Hi, thanks for the reply. Plugs are out, tried turning it forward and reverse with the rear wheel whilst in gear and it won't budge at all.
73
« on: August 30, 2020, 09:22:42 AM »
Hi all,
I have a CB750K2 which was running fine, I haven't used for a few weeks and when I went to start it yesterday it turned over very slowly then the engine just locked up completely. It is now stuck solid, kickstart or rear wheel in gear won't move it. On investigation i discovered to my horror that I had what seemed like an entire tank of fuel inside the engine! I left the fuel tap on and somehow the carbs leaked into the engine and gearbox rather than come out the overflow. I have drained all the fuel and removed the plugs but the engine is still stock solid. Any ideas of what the damage might be? Is there any thing I can check to narrow it down, not sure I am up to a complete engine removal and strip down?
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