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Evo eccentric chain adjustment?

  • Thread starter Thread starter Stanley
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Stanley

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Hi Folks,

I've recently bought an 1100 Evo, and find the handling is slightly "unusual".

I've begun to suspect that the rear wheel's eccentric adjuster may be in the wrong plane. ie. should the rear wheel spindle be in the top half of the arc, or the bottom half of the arc?
Put a different way; should turning the adjustment ring clockwise tighten, or loosen, the chain?
I'm suspecting that having the spindle in the wrong half will drastically alter the head, rake and castor angles.

Trackday next Tuesday, so I want it right!

Many Thanks
 
Don't know about M1100 but on a 916 type swingarm the wheel spindle should be in the lower rear section, usually between 4 and 6 o' clock. If you adjust it unto the upper section the chain will actually cut into the chain guard and interfere with the swingarm.

I would guess the 1100 is similar, i.e. if it's in the wrong section it will be obvious...
 
Anti-clockwise tightens the chain.

Chain slack is 61-63mm measured from the centre of the chain pins to the swinging arm.

Make sure you don't over tighten the two pinch bolts; they should be 31Nm after greasing the threads and under the heads with molybdenum grease. Tighten left-right-left.

Hope that helps.
 
Thanks for the replies.

The owners' manual echoes what you guys are suggesting,
"Turn counter clockwise to tighten the chain; clockwise to loosen (from chain side)."

That would put the wheel axle in the lower arc. On my bike the wheel axle is in the upper arc, however; everything else looks right: Chain tension, hugger clearance, side stand angle, etc.

Puzzled, I've investigated further. I've now found a genuine Ducati reassembly guide that clearly shows the axle in the upper arc.... so mine is ok. I guess the M1100 must be different to other models?
And the owners' manual is wrong?!

Thanks again
 
SunEye said:
On the M1100evo it is definitely clockwise to tighten the chain.
Click to expand...

I adjusted my chain three days ago and it's definitely counter-clockwise to tighten as per both the owners' and workshop manuals. Anyway, there's one way to confirm it - just try it yourself!

You say your diagram shows the axle in the upper arc but my spares catalogue shows it in the lower left quadrant.



Has your chain been replaced? Perhaps the hub was rotated in error when the chain was changed? If your axle is above the centre line, wouldn't that have the effect of slowing down the steering?

As I say, try adjusting your chain and see which direction tightens it. If it is counter-clockwise, then it would appear everything is as it should be...
 
Word of warning never fully trust Italian translation. Found errors and total gibberish in 2015 hyper manual lol
 
Luddite said:
I adjusted my chain three days ago and it's definitely counter-clockwise to tighten as per both the owners' and workshop manuals. Anyway, there's one way to confirm it - just try it yourself!
Click to expand...
I am happy to be wrong - I apologise if my mistake has caused any confusion. I was just going by my memory of adjusting the chains on my M1100 and M1100evo. I also checked a previous thread on this forum which said clockwise and two videos on YouTube which showed a Multistrada and M796 being turned clockwise to tighten the chain.

I have subsequently found a YouTube video of an S4R chain adjustment which is counterclockwise to tighten. So clearly not all Ducati eccentric chain adjusters turn the same way to tighten the chain. Which in hindsight is reinforced by the Ducati technician in the Multistrada video saying that you turn it in whichever direction tightens the chain, as he was giving a generic demonstration of Ducati chain adjustment.
 
Checked mine and two mates
All have spindle at top of arc

If you have spindle in lower arc the chain will eat the upper swinging arm protector in short order
I maintain about a dozen 1100's and evo's and all have spindle at the top.

Sounds like a few people have them wrong way but Afaik you can't turn the eccentric 360 degrees as the brake plate pin only allows about half a turn before it runs out of slot.

Regards
Rick
 
Last edited:
Cobra88 said:
Checked mine and two mates
All have spindle at top of arc
Click to expand...

Well I'm confused! I've looked at mine and, as Rick says, the axle is at the top (shown clearly on this eBay arm)



And yet I still have to turn the adjuster anti-clockwise to tighten the chain! How does that work?!?

Perhaps in this case, the word "eccentric" means "weird" rather than "off centre"!
 
Resurrecting this old thread looking for some clarity on chain tension….my mates Hypermotard (same swingarm as Evo Monster) came back from Ducati service and immediately my chain looked much slacker than his….the issue is the 61/63mm from chain centre to bottom of swingarm….there is a plastic (?) rubbing strip on the bottom of the arm and I have been measuring to that point…..can I assume that this is incorrect and the measurement is to the actual arm ? Doing it this way makes my chain very similar to the newly serviced Hyper……
 
Push down on chain. Release. Measure from center (pin) of chain to metal on the swingarm (not plastic). I don't know, but even though there is unusual amounts of slack on that generation Monsters (the engine is mounted higher in these frames) it's not clear that it's going to be 61-63mm. That's a distance measured - not necessarily the slack.

I read the confusion further up. Really typical drunken engineering from Ducati. Why change the axle position in the hub.....
 
Thanks for confirming my suspicions about the “wear strip”
Lars …..readjusted it and it looks much more like the Hypo now.
 
If you have a smaller front sprocket 14t instead of 15t standard as is common mod on these it might vary slightly. Maybe not enough to matter idk as I run 15t on all mine.
 
I’m running the standard 15t sprocket, Darren, enjoy the long legedness of under 4k revs for 70 mph…..and it shows at the petrol pump….I ride with a mixed bag bunch from Hypermotard , MT10 , R1 etc…..no one ever puts in less juice than me..the MT 10 is regularly £2/3 more per 100 miles….🫣
 
My Zero costs about £3 per 100 miles.
My 1977 Tiger 750 returns 78mpg consistently and I will be gearing it up for next year.
Just sayin'. :LOL:😌:cool: :love:
 
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