Chain slack - force when adjusting - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 15 Old 06-19-2018, 08:51 AM Thread Starter
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Chain slack - force when adjusting

Can someone give me some tips from experience on the V about force on chain when checking slack? I am not new to motorcycles or chain adjustment, but i am new to this bike. I have found each bike has a sweet spot. Following the manual, it doesn't specify whether to push down and up, just up, etc, or with how much force. My old bikes repair manual stated how much slack when hanging a weight. Not that i did that every time, but it was a starting point until i just knew it was right.
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post #2 of 15 Old 06-19-2018, 08:55 AM Thread Starter
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I will also add, i currently only have a side stand. Manual states the adjustment done on side stand. Center stand is in the mail.
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post #3 of 15 Old 06-19-2018, 09:05 AM
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For the last 15 years (since I started riding again) I have always believed that the links were stronger than my fingers. On the side stand, not the the center stand, I push down with my left index finger until the chain dosen't move anymore. I press upward with the left thumb until the chain is tight.

For the Vee the specs say 20-30 mm slack, between 20 mm and 35 IMO is great.

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post #4 of 15 Old 06-19-2018, 09:14 AM Thread Starter
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i adjusted very similar to you, probably with not as much force as you, but moderate both ways. It just seems much tighter than other chains i have adjusted. It seems especially tight on the upper part of the chain. Does the V just like tighter chains? It is brand new, only 200 miles on the oem chain, well lubricated.
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post #5 of 15 Old 06-19-2018, 10:30 AM
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Moderate force is a good way to go. If you go out of spec, slightly too loose is better than slightly too tight. Using full force to measure slack can put you in the "too tight" range.
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post #6 of 15 Old 06-19-2018, 11:55 AM
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Quote:
Originally Posted by ERockJL View Post
i adjusted very similar to you, probably with not as much force as you, but moderate both ways. It just seems much tighter than other chains i have adjusted. It seems especially tight on the upper part of the chain. Does the V just like tighter chains? It is brand new, only 200 miles on the oem chain, well lubricated.
A new chain is rigid until broken in. I have never checked the tension on the upper part of the chain. If in doubt about the chain being to tight simply give it a bit more slack ie 25 mm to 35mm instead of the recommended 20-30 (Vee). Your middle finger is not as strong as your index or thumb, maybe use it to tension the chain. I get good mileage from my chains in the 30,000 to 40,000 km range. When they start to kink I change them. My preference in chains is DID.

Good luck

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post #7 of 15 Old 06-19-2018, 01:05 PM Thread Starter
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when i say brand new chain, its the oem chain, new bike. It seemed a bit loose by factory settings. However, tightening by the manual it seems a little tight. The only variable can be how much force is pressed on the chain. Maybe ill just reset it looser. Anybody with a factory repair manual that might explain the tightening procedure differently?
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post #8 of 15 Old 06-19-2018, 02:55 PM
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Quote:
Originally Posted by ERockJL View Post
when i say brand new chain, its the oem chain, new bike. It seemed a bit loose by factory settings. However, tightening by the manual it seems a little tight. The only variable can be how much force is pressed on the chain. Maybe ill just reset it looser. Anybody with a factory repair manual that might explain the tightening procedure differently?
Checked service manual. It's pretty much identical to owner's manual when it comes to chain adjustment. 20-30mm of slack at the mid point. Nothing about how much force should be used to measure it. If you're really that concerned about it, why not take pics or video of the chain in all the way up and all the way down position and post it here?
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post #9 of 15 Old 06-19-2018, 09:06 PM
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I use my bike key or the top of my fingers to give it a little jiggle. I think the idea, in my mind, is that it moves freely only 0.5" up or 0.5" down (1" slack total).
Either way it seems that it only really stretches the first thousand miles or so then it's good.

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post #10 of 15 Old 06-19-2018, 10:46 PM
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A loose chain is better than a tight chain. I tend to adjust mine to where when I push it up with a bit of tension, it touches the bottom of the swingarm. Notice I said "with tension". It should now be able to slap the swingarm.

If you adjust it too tight, you can screw up your output shaft bearings. No bueno!!

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