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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: ed3541 on March 31, 2016, 11:02:14 AM

Title: Clutch is shuddering in first gear
Post by: ed3541 on March 31, 2016, 11:02:14 AM: I'm refurbishing an '85 K100. Swapped out the engine and tranny for a newer engine (55k) from another '85 K100. But the bike shudders when I take off in first gear. The engine seems to be running smoothly and the bike runs OK once it's going. I'm wondering if I should replace the clutch. It's too bad I didn't do it before I installed the engine. Is this shuddering when starting-out in first gear a sign of a bad clutch? If anyone has any ideas on this problem, I'm open to them.
thanx,
Ed
Title: Re: Clutch is shuddering in first gear
Post by: Uhtread on April 15, 2016, 11:07:08 AM: Probably a bad clutch. An old standby clutch test is to put the bike (vehicle) nose on to an unmoveable object - large tree, e.g. - and operate it as if to take off. The engine should die.
Title: Re: Clutch is shuddering in first gear
Post by: johnny on April 15, 2016, 11:18:15 AM: greetings ed354...

march 31st post... musta missed it...

anyway... im betting it just needs to be ridden... getts out there and commence to whacking the throttle in all gears... its a 50/50 chance it just needs some heat cycles to smooth out...

j o
Title: Re: Clutch is shuddering in first gear
Post by: Laitch on April 15, 2016, 11:45:03 AM: Quote from: johnny on April 15, 2016, 11:18:15 AM
greetings ed354. . .
. . . getts out there and commence to whacking the throttle . . .
:2thumbup:
Title: Re: Clutch is shuddering in first gear
Post by: ed3541 on April 16, 2016, 10:45:21 PM: OK thanx Y'all for the ideas. I'll definitely try 'em before replacing the clutch.
Title: Re: Clutch is shuddering in first gear
Post by: mr_10brook on April 18, 2016, 07:50:52 AM: I agree with Johnny. I bought a 97 LT last year from Alabama with only 18k miles over the phone. When I got it home (trailered), I had a clutch shuddering issue on taking off. The problem went away after a few hundred miles of back and forth to work.
Title: Re: Clutch is shuddering in first gear
Post by: ed3541 on April 18, 2016, 10:17:22 AM: I'm glad to hear this from 3 brick bikers now. I'm gonna go down to the DMV and get a plate so I can put some miles on it.
thanx