Author Topic: Stuck Clutch. (Read 2359 times)

Magpie · « **on:** October 15, 2016, 03:34:47 PM »

I've done it again - not used the bikes long enough that the clutches are stuck. I ran the bikes to get the oil hot, clunked it gear and started pushing on the rear brake hoping to break the clutch free - only stalled the motors. Besides taking the whole thing apart are there any gentle methods you know to free it up?
Thanks,
Cliff.

Steve F · « **Reply #1 on:** October 15, 2016, 05:10:20 PM »

IN THE PAST, I WOULD PUT IN GEAR, PULL THE CLUTCH IN (BUNGEE CORD IT TO THE HANDLEBAR) AND ROCK THE BIKE BACK AND FORTH, ENGINE NOT RUNNING. I DIN'T LIKE DROPPING IT IN GEAR WITH THE ENGINE RUNNING, SEEMED A BIT ROUGH ON THE TRANNY. KEEP THE CLUTCH BUNGEE'D OVERNIGHT MIGHT HELP TOO.

754 · « **Reply #2 on:** October 15, 2016, 05:20:41 PM »

Up against the wall MFer..
Get ready like for a burnout, pull in clutch , put in gear.. They either break loose or you climb the wall...

cougar · « **Reply #3 on:** October 15, 2016, 09:18:26 PM »

+1 on 754's idea ! What I've always heard. ...cougar...

ekpent · « **Reply #4 on:** October 16, 2016, 05:18:29 AM »

I tie the clutch handle back to the grip like Steve mentioned and let it sit that way when there is a problem.That in combination with starting the engine and getting some hot oil circulating usually does the trick. Rocking the bike in 3rd gear or so with engine off and clutch tied back and hot oil helps also. Doubt you will have to open her up Cliff.

333 · « **Reply #5 on:** October 16, 2016, 07:20:19 AM »

Doing anything with the engine running is bad, for the tranny, and for safety in general. Steve F has it right. Engine off, grab clutch, in gear, rock back and forth.

At the risk of starting yet another oil thread, this is clearly an oil issue. I had this problem with a CB125. It took me 2 or 3 oil changes to flush out the bad oil, but the issue did go away.

Magpie · « **Reply #6 on:** October 16, 2016, 08:46:21 AM »

Thanks guys! Oil is Rotella with 0 miles on it. Cliff.

333 · « **Reply #7 on:** October 16, 2016, 04:29:00 PM »

I wouldn't know what oils are bad, but if you've used Rotella for a while, I'd suspect it. I've had great luck with the Honda HP4 w/ Moly. Never a stuck clutch, and noticeably smoother shifting.

Magpie · « **Reply #8 on:** October 16, 2016, 06:20:01 PM »

I'll go to the HP4 next oil change on the bikes. No clutch slip with the moly? Thanks, Cliff.

Thekramer666 · « **Reply #9 on:** October 16, 2016, 08:47:24 PM »

So if u use that hp4 oil I take it there's no need to use the zinc additive?

BomberMann650 · « **Reply #10 on:** October 16, 2016, 10:26:40 PM »

Quote from: Thekramer666 on October 16, 2016, 08:47:24 PM

So if u use that hp4 oil I take it there's no need to use the zinc additive?

Honda lube has more zinc than other brands, but an additive would still be beneficial

Thekramer666 · « **Reply #11 on:** October 16, 2016, 11:02:29 PM »

Ahh ok sounds like a spring oil change while I wait for collector plates thx

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333 · « **Reply #12 on:** October 17, 2016, 02:38:50 PM »

Quote from: Magpie on October 16, 2016, 06:20:01 PM

I'll go to the HP4 next oil change on the bikes. No clutch slip with the moly? Thanks, Cliff.

No. But don't use it in just any bike. I have a CT70 w/ a centrifugal clutch, and it will screw that up. I've used it in all my bikes except that one, and my first bike(before I knew about oils), which include; CB750K4, CB550K0, 2CB125S, and my current CB350F0.

Magpie · « **Reply #13 on:** October 17, 2016, 04:33:35 PM »

Nice collection. Thanks for the tip about the CT90 clutch. I have a 1960's CM90 next in line for some loving. Cheers, Cliff.

Magpie · « **Reply #14 on:** November 03, 2016, 07:23:19 AM »

Fixed. I tied the clutch levers back to the handlebars and left it that way for a few days. Then put the bike in 2'nd gear and rocked the rear wheel back and forth which eventually helped the clutch plates break free of each other. Much easier on the equipment. Thanks for the tips.

BomberMann650 · « **Reply #15 on:** November 04, 2016, 04:47:05 PM »

Curious question; how is it possible my bike sat 15 years amd the clutch didn't stick?

b52bombardier1 · « **Reply #16 on:** November 04, 2016, 08:02:08 PM »

Mine sat even longer - about 1978 until last May. Worked perfectly and needed no adjustment after the bike came back to life in July.

Rick

333 · « **Reply #17 on:** November 07, 2016, 10:45:42 AM »

I think it may be the additives in newer oils, but that's just a guess.

USMC5811 · « **Reply #18 on:** November 07, 2016, 06:47:03 PM »

Mine didn't stick until my 2nd or 3rd change this summer (trying to get rid of old oil from PO), now starting to hang up a bit - so oil choice is highly suspect in my case

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Lostboy Steve · « **Reply #19 on:** November 08, 2016, 03:45:29 AM »

My clutch still isn't right. I just ignore it at this point. It's brandy new 4 times over and still feels like some of the plates are sticking together.

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Author Topic: Stuck Clutch. (Read 2359 times)