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post #1 of 15 Old 10-04-2005, 09:07 PM Thread Starter
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chain tension

dealer said my chain is too loose, how do i know how tight it should be. got the cotter pin out and axle bolt loose and am working on the tension bolt. do i pull off the sprocket or where the chain sags in the middle to test tension. thanx. jon, 03 k1000
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post #2 of 15 Old 10-05-2005, 11:52 AM
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You'll want to push the chain up at the midpoint of the front and rear sprockets until it starts to get tight. If you go by the owner's manual, this should be done with the bike on the side stand. I usually adjust to the loose side of the spec.

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post #3 of 15 Old 10-05-2005, 12:48 PM Thread Starter
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chain tension

do i adj. the tension bolts on both sides of the wheel? i dont have a manual yet, it's on order... thanx, jon
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post #4 of 15 Old 10-05-2005, 02:05 PM
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Yes, adjust both sides. Ususally it is better to measure the same distance on both sides with a steel rule but the swing arm marks appear to line up fairly well. This is imperative to keep the chain/wheel lined up. I think the measurement for chain tension is .8-1.2 inches. I also go on the looser side.

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post #5 of 15 Old 10-05-2005, 02:58 PM
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Just did this last night and you are correct, .8 - 1.2 inches (for the 650).


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Originally Posted by dan-c
Yes, adjust both sides. Ususally it is better to measure the same distance on both sides with a steel rule but the swing arm marks appear to line up fairly well. This is imperative to keep the chain/wheel lined up. I think the measurement for chain tension is .8-1.2 inches. I also go on the looser side.
Mike
Tampa, Fl
DL650K5
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post #6 of 15 Old 10-05-2005, 05:56 PM Thread Starter
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chain tension

sorry to be so dense, but am i measuring the length of the tension bolts with the metal ruler ? how do i know both sides are adj the same. thanx again. it would help if i had a maual but wont get it til next week some time. meanwhile i'm riding a few hundred miles this weekend and i want to be safe. jon
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post #7 of 15 Old 10-05-2005, 06:24 PM
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Re: chain tension

Try here;

https://www.stromtrooper.com/forum/vi...ighlight=chain

You only need the ruler to measure the slack in the chain. The index marks on the swing arms (facing out on the rear of each swing arm) should be the same foe both sides. If this isn't clear let me know and I'll post a picture.

Mike
Tampa, FL
DL650K5


Quote:
Originally Posted by jet7271
sorry to be so dense, but am i measuring the length of the tension bolts with the metal ruler ? how do i know both sides are adj the same. thanx again. it would help if i had a maual but wont get it til next week some time. meanwhile i'm riding a few hundred miles this weekend and i want to be safe. jon
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post #8 of 15 Old 10-05-2005, 11:14 PM Thread Starter
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chain tension

i found the hash marks, much easier now. thanks for all your expertise. ride on! jon
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post #9 of 15 Old 10-06-2005, 03:22 PM Thread Starter
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chain tension

one more question, don't have a torque wrench yet, will borrow or buy later, but for the short term, i assume it's safer to err on side of overtightening instead of under, the axle nut? it was hard to get off, so i cranked on it with ratchet and pipe extender. btw mike the link to the chain tensioning adj page helped lots. thanks again... jon
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post #10 of 15 Old 10-06-2005, 08:07 PM
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I like to error on the side of correct :lol:

Over tightening can be just as bad as loose. Too tight and you could end up with no threads.

Make sure the toque wrench can handle the load the read axel nut is tightened to 100 N-m (72.5 Ib-ft) on the 650.

I guess if you really wanted to you could rig up a home made toque wrench. Take a long pipe and measure out to say 7.25 feet and hang a 10 pound weight at that point (7.25 ft x 10 lbs = 72.5 ft-lbs) while the pipe is horizontal. You may have to push down on the pipe a LITTLE to overcome initial friction. Find a kid that weighs 72.5 lbs and stand on the end of a one foot wrench, etc...

After thinking about this I've come back to edit this. Unless you can remember your calculus, don't use a long pipe and a weight. You need to factor in the weight of the pipe too.You'd need to intergrate the weight over the length of the lever arm.

Mike
Tampa, FL
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