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Classic, Vintage & Veteran For Coventry and Meriden Models. Anything pre-Hinckley goes.

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Old 11-27-2010, 11:00 AM   #1 (permalink)
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Main Motorcycle: 1978 Triumph T-140
 
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Location: Salina, OK
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Other Motorcycle: 1973 Norton Commando 750
Extra Motorcycle: 1974 Norton Commando 850
New Member - Kickstart Problem

I'm a new member on this forum. I recently bought a nice 1978 T-140E (picture attached - if can figure out how to do it!). My problem is when starting the bike sometimes the kickstart lever will not move. Its like it is binding or jammed. If put in gear and pushed (bumped) slightly, it will free up and then kick start normally. This happens once every 10 or 15 times I start it. Is this a common problem on old Triumphs? What is the cure? Bike has 17K miles and appears to be in very good condition otherwise.
I've restored a couple of Norton Commando's, but this is my first Triumph. Any advice will be greatly appreciated.
Tim

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Old 11-27-2010, 03:53 PM   #2 (permalink)
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Stuck clutch

Welcome to the forum.
Check the thread on "Before Kick starting, break the clutch loose"

Cheers,
Neil.
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Old 11-27-2010, 04:49 PM   #3 (permalink)
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Nice bike.Welcome to the fourm.This is a great place to find answers to any problems with classic Triumphs.Lets see pic of that Norton also.
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Old 11-27-2010, 05:02 PM   #4 (permalink)
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This isn't caused by a sticking clutch. The clutch connects the gearbox (containing the kick start mechanism) to the engine - so it has to be engaged (or stuck!) for the kick start to turn the the engine over. What Okietim describes sounds like some sort of jamming within the gearbox / kickstart mechanism or engine.

A stuck clutch prevents the gearbox (and final drive) from being disconnected from the engine, as it needs to be before a gear is engaged. But it won't prevent the engine being kicked over.

Last edited by Vince C; 11-27-2010 at 05:07 PM.
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Old 11-27-2010, 05:11 PM   #5 (permalink)
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Quote:
Originally Posted by Vince C View Post
This isn't caused by a sticking clutch. The clutch connects the gearbox (containing the kick start mechanism) to the engine - so it has to be engaged (or stuck!) for the kick start to turn the the engine over. What Okietim describes sounds like some sort of jamming within the gearbox / kickstart mechanism or engine.

A stuck clutch prevents the gearbox (and final drive) from being disconnected from the engine, as it needs to be before a gear is engaged. It won't prevent the engine being kicked over.
Vince I was thinking It is a jamming kickstart.There is a bushing or bearing that wares.It is starting to happen on my bike.I will be replacing this part in the winter.To get it to work kick start bike with the kickstart lever 1/2 way down.At 3/4 it will jam at times.This was discussed on a thread months back.
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Old 11-27-2010, 07:54 PM   #6 (permalink)
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Main Motorcycle: 1978 Triumph T-140
 
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Location: Salina, OK
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Other Motorcycle: 1973 Norton Commando 750
Extra Motorcycle: 1974 Norton Commando 850
Vince and Giacomo - I think you are correct in thinking its not a clutch sticking problem. It happens with everything warmed up and bike in neutral. It's in the gearbox. Right now it's pretty easy to work around, but it probably indicates something is going wrong. Giacomo, please post results when you go into trans to repair. Thanks for the prompt responses.
Tim
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Old 11-27-2010, 08:15 PM   #7 (permalink)
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Quote:
Originally Posted by Okietim View Post
Vince and Giacomo - I think you are correct in thinking its not a clutch sticking problem. It happens with everything warmed up and bike in neutral. It's in the gearbox. Right now it's pretty easy to work around, but it probably indicates something is going wrong. Giacomo, please post results when you go into trans to repair. Thanks for the prompt responses.
Tim
I dont have my parts book with me right now but will post part # when I get it.
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Old 11-28-2010, 01:47 PM   #8 (permalink)
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Main Motorcycle: 1978 Triumph T-140
 
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Location: Salina, OK
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Other Motorcycle: 1973 Norton Commando 750
Extra Motorcycle: 1974 Norton Commando 850
Giacomo -Here is a picture of the 73 Commando with the 78 Triumph. If I can figure out how to post them again.
Tim

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Old 11-28-2010, 02:18 PM   #9 (permalink)
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Hi Okietim
you got a nice pair there
for the kicker problem
with clutch disengaged take small stabs at the kicker, this should engage the quadrant and the ratchet if there is any wear on them,
also as giacomo67 said start you swing with the kicker at the 9oclock position.
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Old 11-28-2010, 04:33 PM   #10 (permalink)
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Yes that is a nice pair you have.Both equally beautiful.
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