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Old 09-10-2014, 10:48 AM   #1
SubAtomicGenius OP
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Chain too tight after service

Had my clutch go out of adjustment right after my dealer service so I decided to give her a good once-over myself. Found the chain slack set at 25mm (too tight) instead of the recommended 35-45mm - this is after about 100km of riding. I adjusted the chain slack immediately. I am somewhat concerned about problems if any... What would be the proper checks? Pinion shaft rotation? Hub bearings? Thoughts?
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'14 F800GS Cordoba Blue - ABS, ESA, ASC, Low Seat, Cen. Stand
Touratech Lower/Upper Crashbars, Skidplate, Adj. /Folding Clutch and Brake Levers (black) - Barkbusters VPS Handguards - SW Motech Rear Frame Sliders and Chain Guard - Pivot Pegs - Bestrest Shock Bolt Support with Upper Bolt - Accelerator Module - Nautilus Air Horn - 12VDC Display
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Old 09-10-2014, 11:39 AM   #2
vtbob
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don't worry!
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Old 09-10-2014, 12:09 PM   #3
itsatdm
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It could be worse. The Mechanics follow a script on what to do at each service. I have had them do "checks" on things, I did not want them to touch.

It hasn't done me any good, they are good robots.

Ever since I discovered that clutch slack specs was wrong in the first CD. I do that, hands off, don't touch instructions.

The last adjustment I tried to make, a gorilla could not have loosened the nuts. It was holding together the 2 pieces of the cable bracket. The original design was weak and "somebody" broke it. It is cast into the $300+ side cover.

I guess the mechanic felt it better, I buy it than him.
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itsatdm screwed with this post 09-10-2014 at 12:25 PM
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Old 09-10-2014, 12:25 PM   #4
c4nuck
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I wish all I had to worry about was a out of spec chain sag after picking my bike up. Last time I picked my bike up, almost every screw was loose or missing, makes me wonder what was forgotten elsewhere on the valve check! They offered to go over the bike and re-check everything, to which I replied they should have done that the first time, no?
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Old 09-10-2014, 01:03 PM   #5
SubAtomicGenius OP
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Quote:
Originally Posted by itsatdm View Post
It could be worse. The Mechanics follow a script on what to do at each service. I have had them do "checks" on things, I did not want them to touch.

It hasn't done me any good, they are good robots.

Ever since I discovered that clutch slack specs was wrong in the first CD. I do that, hands off, don't touch instructions.

The last adjustment I tried to make, a gorilla could not have loosened the nuts. It was holding together the 2 pieces of the cable bracket. The original design was weak and "somebody" broke it. It is cast into the $300+ side cover.

I guess the mechanic felt it better, I buy it than him.
Thanks for the input. I'm regearing to a 15t pinion up front later next week, so I'll check it out more closely then.

What was the deal with wrong slack measurements before?
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'14 F800GS Cordoba Blue - ABS, ESA, ASC, Low Seat, Cen. Stand
Touratech Lower/Upper Crashbars, Skidplate, Adj. /Folding Clutch and Brake Levers (black) - Barkbusters VPS Handguards - SW Motech Rear Frame Sliders and Chain Guard - Pivot Pegs - Bestrest Shock Bolt Support with Upper Bolt - Accelerator Module - Nautilus Air Horn - 12VDC Display
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Old 09-10-2014, 01:31 PM   #6
itsatdm
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The original CD called for 1mm of slack in the cable measured at the lever. That's not near enough to account for heat build up and expansion of the clutch plates that occurs when riding the bike.

I think the current spec is 3mm and I believe that is the minimum. I had set mine at 5mm.
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Old 09-10-2014, 01:45 PM   #7
GREWUPIN_D11
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When picking up my 2010 F800GS after the 600 mile service (in 2010, of course), noted the chain was as tight as a fiddle string with the bike leaning on the side stand. I was very unhappy.

However, it's become evident in the 11000 miles and 4 years since the event that no significant damage was done to the rear wheel bearings, sprocket carrier bearing, countershaft bearing, nor chain.

In your case, with at least some measurable slack existing, I would say very little probability of any damage. Press on.
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Old 09-10-2014, 03:45 PM   #8
Kiwi Tinkerer
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Coulda

What you could have done is pull the rear of the bike down until the swingarm is in line with the swingarm pivot and the front sprocket. If you still had some slack then you were less likely to have done any damage.
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Old 09-10-2014, 04:24 PM   #9
SubAtomicGenius OP
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Honestly, I can't see the rear suspension cycling much with only mild road use during that time. Next time, however, the service will be done by yours truly... Or checked in the parkinglot right after....
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'14 F800GS Cordoba Blue - ABS, ESA, ASC, Low Seat, Cen. Stand
Touratech Lower/Upper Crashbars, Skidplate, Adj. /Folding Clutch and Brake Levers (black) - Barkbusters VPS Handguards - SW Motech Rear Frame Sliders and Chain Guard - Pivot Pegs - Bestrest Shock Bolt Support with Upper Bolt - Accelerator Module - Nautilus Air Horn - 12VDC Display
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