Finding neutral

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Re: Finding neutral

Postby EVguru » 10 Jul 2017 15:58

Paz2112 wrote:Paul I have this problem with my bike at the minute. Basically I am unable to get a good angle on the clutch release arm and I suspected that this was because of the wear on the pressed dimple that pushes in the operating rod. Mine is worn a little and if I adjust so that the arm is just clear of the outer case there is not enough travel to properly disengage the clutch. Can I ask Paul, in your experience, if the outer case had been pressing just slightly on the arm and therefore pressing on the rod, could this cause the bike to pull out of gear during high revs? (something which has happened to me).


Not having any clearance would wear the pushrod(s), lifter 'mushroom' and pressure plate and eventually lead to clutch slip.

If I adjust the lever so that it is just clear of the case liek you say, then my clutch cable appears to be too long, even when the handlebar adjuster is used.


Venhill cable? If so it wouldn't be the first. Of course, cable suppliers are up against it on old bikes where levers and or lever perches might not be original, but Morinis seem to be quite good at retaining factory levers.

On a couple of low mileage early bikes that showed no signs of having been messed with, the clutch cable used a screw type clamp at the gearbox end, rather than a cast or soldered nipple. Easy to get the cable length right then!
Paul Compton
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Re: Finding neutral

Postby Paz2112 » 10 Jul 2017 16:05

Thanks Paul for replying. I think I will just solder the nipple to the correct length. Do you have suggestions as to why the bike would pull out of gear (not slip)?
My Other Italian V-Twin is an Italian V-Twin
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Re: Finding neutral

Postby mikeybizzle » 15 Jul 2017 17:43

Update to my original post .
The bike is now on the bench with clutch side stripped out springs seem ok but a little oil has made its way in so I will replace seals , both sets of plates look good as does the clutch drum .
The right side lever has a little bit of wear so maybe a blob of weld and a little dressing with a file is in order then back together an see what happens .
To be continued ......
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Re: Finding neutral

Postby mikeybizzle » 06 Aug 2017 15:26

mikeybizzle wrote:Hopefully only a small problem :? .
When my sport engine is running whether hot or cold it is near impossible to get it back into neutral any ideas what to look for ?
Thanks in advance and I will report back .

Mikey


Bike all back together now and tested seems to be improved , goes into neutral with out stopping the engine .
When the clutch was out I noticed a smear of oil over the plates so I cleaned them replaced the clutch oil seals and adjusted the clutch actuating arm so it was well clear of the engine casing when the handlebar lever was pulled in .
My old Dad was right when we encounter mechanical problems we never look for the simple reasons why things don't work correctly when we should instead we start searching for problems that are not there .
My son has just come back after test riding it , big grin on his face so hopefully that is the end of the 'Finding Neutral' problem .

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Re: Finding neutral

Postby P&S » 23 Oct 2017 23:12

There is a way to solve the problem of a hard to find neutral.
Some clutches have this problem, others jump suddenly when you release the lever (I don’t know how you call this malfunction) Some are perfect.
Joking aside It is all a matter of how tight the clutch centre is fixed on the main shaft of the gearbox and how much it presses on the clutch drum.
If it’s too tight the clutch will “stick” (sorry I don’t know the right terms) making difficult to find neutral.
If it is too loose you will have a jumping clutch.
If it sticks the problem is easy to solve. You have to place a shim behind the centre clutch. It is a matter of tenth of a millimeter.
Image
If it’s too loose you have to remove metal from the bump on the back of the centre clutch with a lathe.
Image
It took tree shims to get the rigth tuning. and every time I had to close everithing an test on the road.
Sometimes even reducing torque on the central nut helps finding the perfect tuning.
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