Clutch 'snatch'

[1200 JOTA]

a short post office run (maybe not up to full temperature) but not heartening ... not much change and a little judder on each start

will ride it for a bit and see if I get thrown off

 

[Vince]

There amazing, doesn't matter what you do the throttle, hard slow they just give a nice smooth takeoff.

 

[Reunited Chris]

I've observed over several clutch rebuilds that the pressure plate can be replaced in position in one of two ways.
The first being the position it came off relative to the splines, this is good.
If however it is placed 180 deg from original sticking on the splines can occur. This is easily checked with just a few springs in place.
Depress the clutch lever and let it out slowly, if the pressure plate return is notchy remove it and turn it around 180 deg, all should be well.
In the wrong position the clutch will partially engage and then click home when you're not expecting it.
Another symptom is the clutch slipping at high revs before clicking home fully, if you're lucky.

 

[Andy]

I thought (and notice) they slip at high revs anyway?
Are Kevlar plates the cure?

 

[rodbargee]

Just had the cush drive rubbers in the clutch replaced on mine and some easily ignored springs! new primary chain too.


and clutch anti-rattle spring.

 

[Paul Marx]

Just had the cush drive rubbers in the clutch replaced on mine and some easily ignored springs! new primary chain too.

View attachment 63004
and clutch anti-rattle spring.

And?

 

[rodbargee]

Nice and smooth clutch delivery.

 

[Dellortoman]

With reference to the thread title, I think clutching a snatch was a move practiced by Donald Trump.

 

[piranha-bro2]

With reference to the thread title, I think clutching a snatch was a move practiced by Donald Trump.

A Chain song from the early 70s - Grab a Snatch and Hold It. Matt Taylor.

 

[Davo]

With reference to the thread title, I think clutching a snatch was a move practiced by Donald Trump.

I read the thread title then began wondering how long it would take. Longer than I thought.

 

[78jotadave]

A Chain song from the early 70s - Grab a Snatch and Hold It. Matt Taylor.

'somebody help me, I can't help myself

 

[Wowshie]

I read the thread title then began wondering how long it would take. Longer than I thought.

ChrisK obviously wasn't online

 

[Stoutgoose]

Delving further into my 1200 triple which has a few clutch issues.

It's a beast in traffic (as most might be) but having sorted the selector mechanism the remaining problem is a dangerous 'snatch' when leaving the lights in first. The clutch seems to slip a little (maybe) and then grab, unsettling the whole bike and very careful feathering of the clutch is needed to pull away. It might do this a few times before you get moving!

The clutch is now dismantled and is being checked out. No significant wear and the plates / springs are within spec. with no glazing and pretty clean. No clutch slip when under load or accelerating. The problem may be present at higher engine temps more so than when cold. Oil is Mobil V-Twin 20-50 (USA)

I'm considering drilling the basket(s) to alleviate heat and get better oil distribution (and try a different oil)

One concern is the amount of backlash present on the lay-shaft which is about 25 degrees. Could this be the source of it setting up a bounce / snatch?

Anyway .... please relate any comments / suggestions.

Is the primary chain correctly tensioned? If the primary chain is too slack, it can cause the symptoms you describe.