Author Topic: That old chain adjustment topic again  (Read 274 times)

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Offline Brockett

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That old chain adjustment topic again
« on: April 22, 2021, 09:28:34 »
My Kawasaki handbook says I should clean the chain with Kerosene ( paraffin)
The SV handbook says do not use Kerosene but instead use a "sealed drive chain cleaner" or "neutral detergent and water". Maybe the "o" rings are made of different materials.  Both say lubricate with 80/90 gear oil.
Then I come to adjusting the chain on the SV. The hex head of the axle seems to made of cheese and is now in a horrid state. This is in part due to there being a  21mm nut on the drive side that has to be tightened to 70ftlbs while the axle head is 19mm and also very shallow. In this unequal battle there can be only one winner. ( it's not me).
Now the adjustment and the measurement problem.
I have always held a rule to the floor and noted the height of the lower edge of a link in roughly the middle of the lower run. I then push the chain up and note the height of the lower edge of the link and I'm looking for 2 to 3 cm. I check this in other places to check for tight and loose spots.  However, bit before the chain gets to 3cm it strikes the underside of the plastic chain rubbing swing arm protector dodab. That looks a little too loose.
So I went back to the book and noticed the diagram in the book could be showing the lower run of the chain is pulled down and while it is pulled down, it's position noted and then pushed up and the measurement taken.  This provides an additional 5 to 8mm of slack over what I had done before.
IS THIS HOW IT SHOULD BE DONE ?

This doesn't last forever, so do it while you can.

Offline Rixington43

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Re: That old chain adjustment topic again
« Reply #1 on: April 22, 2021, 09:36:49 »


MC Garaaaaage suggest the chain should be actively deflected in both directions, that does kind of make sense to me in pure laymans terms for measuring the total slack.

* Heads off to garaaaage to do it properly :)

Offline 2112

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Re: That old chain adjustment topic again
« Reply #2 on: April 22, 2021, 10:58:42 »
Or just buy a shaftie, sorted  :thumb:
It's pronounced 'twenty-one-twelve'

Offline Brockett

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Re: That old chain adjustment topic again
« Reply #3 on: April 22, 2021, 14:06:40 »
Thanks Rixington -
2112- you're not wrong but I only won the free go on the lottery this week and not the big one  :icon_no:
And a correction to the opening post - the axle nut is 27mm (and not 21 wot I did write).
This doesn't last forever, so do it while you can.

Online tallpaul

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Re: That old chain adjustment topic again
« Reply #4 on: April 22, 2021, 14:07:01 »
What was that 2112? Moto Guzzi?
Old enough to know better, but still too young to care...

Offline 2112

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Re: That old chain adjustment topic again
« Reply #5 on: April 23, 2021, 09:48:10 »
Triumph !!!
It's pronounced 'twenty-one-twelve'