New Clutch Bike Stalling

The place to come to share your technical expertise, or just find out what the little springy thing is that's just pinged out of sight under the work-bench.
Post Reply
redapple
Ear-Plug Cleaner
Ear-Plug Cleaner
Posts: 51
Joined: Tue Jul 11, 2017 10:06 pm

New Clutch Bike Stalling

Post by redapple »

Hopeful someone can help me becaused I am stumped.

Finally got my clutch cover off and found that my clutch friction and steel plates were worn, warped and burnt.

I replaced them with a brand new set as well as a new set of EBC stiff springs.

I allowed them to soak in 20W50 Mineral oil for 24 hours and then installed them.

I also did a oil change with the same oil Commal 20W50 Mineral Oil.

I also did a coolant change at the same time to prepare for winter the continued summer.

The bikes starts fine in Neutral but everytime I try and put it into 1st or 2nd its bucks like a mule and stalls.

I have tried everything.

- Bleeding clutch
- taking out the judder spring
- Loosen the pressure plate springs.
- I even reassemebled from clutchhub, everything is in places, bearings, thrust washers housing,, everything.
- The baskets are in good condtion no ridges.
- Washer and Nut down to torque setting.

I did let the bike warm up in Neutral and then tried first. The bike creeped then held and then after 30-min died.

I am thinking I am using the wrong oil. I was told 20W50 was good for old motors mine is about 55,000. Any help would be appreciated

Cheers
User avatar
nuggitt
Moderator
Moderator
Posts: 5968
Joined: Fri May 22, 2009 9:45 pm
Location: North Yorkshire

Post by nuggitt »

You could try this tip.

Get the rear wheel off the floor and put it in 2nd gear. Grab the rear tyre and rotate it in the direction as if you were going forward. There will be some resitance at first but it should give.

I have to do this sometimes when my bike has been in hibernation over the winter months. It might work or it may not.

Also I think the oil could be a bit thick @ 20w/50. I've done 55,000 odd miles on my bike and I'm using 10w/40 semi synthetic and she loves it.
Bit of advice. Buy a good bed and a good pair of shoes, because if you aren't in one you'll be in the other.
User avatar
Stig
Site Admin
Site Admin
Posts: 11786
Joined: Wed Sep 28, 2005 7:54 am
Location: Searching for my bike

Post by Stig »

Bet the clutch is EBC brand........


Try your old plain plates instead. Personally I'd still go for 10/40 oil but it's each to their own. The thinner oil may help but you might burn a bit more than usual
AKA Bald headed b'stard
redapple
Ear-Plug Cleaner
Ear-Plug Cleaner
Posts: 51
Joined: Tue Jul 11, 2017 10:06 pm

Post by redapple »

Thanks

I will change the oil tommorrow and try the wheel trick and let you know.

Wish I could you use the old plates, rubbish man took them away on monday:(
User avatar
Stig
Site Admin
Site Admin
Posts: 11786
Joined: Wed Sep 28, 2005 7:54 am
Location: Searching for my bike

Post by Stig »

Over the years of running the forum I've read the same issue quite a few times when members install EBC clutches

Seems it's a common fault with that brand
AKA Bald headed b'stard
User avatar
oldskoolexup
Motormouth
Motormouth
Posts: 1219
Joined: Sun Jul 19, 2009 11:45 am
Location: THE place...some are born here, some drawn here...Manchester

Post by oldskoolexup »

10/40 should help ..... but keep us up to speed
Life begins at the end of your comfort zone,
Learn from the mistakes of others.............................
You can't live long enough to make them all yourself
&
Carpe Diem - seize the moment. Don't dream... Do!
Post Reply