Slipping clutch? Check out the Clutch File section.

Started by Pat Conlon, April 09, 2010, 05:32:36 PM

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Pat Conlon

Seems we have a lot of recurring questions on clutch slipping.
Check it out, hope I did not miss anything. This should help the new folks.
http://www.fjowners.com/index.php?topic=1808.msg14307#msg14307

Cheers
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Alf


FJ1200W

Steve
Columbia, Missouri
USA

THXFJ1200

 :blush: I might have a stupid question... -but my momma says stupid is who stupid does- so here it goes.

How does it feel when the clutch is slipping?
I am having the hardest time changing gears, like getting neutral is nowhere there, and first also very hard like kicking it down and I feel like I am destroying the thing.
Is this a sign of the clutch been slippery? I was thinking maybe some of the joins and axels need some lube or so...
I did anyways buy a shifting Detent kit from RPM and will give it a go to install it, but I know I have to remove the clutch anyway, so if this is a clutch issue I could already kill two birds with one shot.

How can I differentiate if the shifting issue is not the clutch? I am starting a thread right now but thought to give it a try here just in case. not trying to hijack this thread at all...
Just thought it should be nice to have a clear image for us new to this what to acknowledge as clutch slipping problems.
Thank you very much.

Ser...
Current: 1992 Yamaha FJ 1200 with ABS
Scooter Honda Elite CH150 fixer-upper
Suzuki Intruder VS800GL down in FL
Past:
Yamaha XT 350
Suzuki DL 650 "Wee-Strom" (first bike)

FJmonkey

A slipping clutch is easy to test. Ride where you can accelerate hard safely. Perform WOT (Wide Open Throttle) pulls once you are in 3rd gear. A slipping clutch will allow the engine to spin up to higher revs quickly with no benefit of acceleration. Hard shifting may be a leaking clutch slave or air in the clutch hydraulics. This causes the clutch push rod to push less. This means the clutch plates are still dragging a bit so the gears still have load on them when you are shifting.

Test for clutch slip, then report back...
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

Cat Cracker

Barry Lupton 1985 Yamaha FJ 1100

2001 Kawasaki ZRX1200R
1980 Yamaha RD 350LC
1984 Yamaha RD 350 YPVS
1975 Honda 400 Four Super Sport , Yoshimura Big bore Kit,           Box Section Swing Arm
1982 Kawasaki Z 400 J
1983 Kawasaki GPz 1100

Pat Conlon

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

Waiex191

This is timely for me because I think my clutch is slipping at WOT and high RPMs. For now I'm just avoiding that bit of fun because 1) I want to get back to the airplane and 2) no problem keeping up with the V30 Magna.
Bryan
1989 FJ1200
1981 Suzuki GN400
Poplar Grove, IL
 

THXFJ1200

Quote from: FJmonkey on June 09, 2019, 12:22:36 AM
A slipping clutch is easy to test. Ride where you can accelerate hard safely. Perform WOT (Wide Open Throttle) pulls once you are in 3rd gear. A slipping clutch will allow the engine to spin up to higher revs quickly with no benefit of acceleration. Hard shifting may be a leaking clutch slave or air in the clutch hydraulics. This causes the clutch push rod to push less. This means the clutch plates are still dragging a bit so the gears still have load on them when you are shifting.

Test for clutch slip, then report back...

It was a leaky slave cylinder, its been fixed now, thanks.
Current: 1992 Yamaha FJ 1200 with ABS
Scooter Honda Elite CH150 fixer-upper
Suzuki Intruder VS800GL down in FL
Past:
Yamaha XT 350
Suzuki DL 650 "Wee-Strom" (first bike)