Correct chain free play?

  • SebRain77
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20 Jul 2008 12:42 #227289 by SebRain77
Correct chain free play? was created by SebRain77
I adjusted the rear wheel, I mean aligned it properly, so i think. The marks on either side are positionned at exactly the same point. Question is this, since i do not have a lift, and that the bike does not have a centerstand, should the free play be the same as in the Clymer manual? It states that a free play of 3/4 inch is required. But this is when bike is on a block or centerstand. I have that 3/4 inch free play. Just wondering if it should be a little bit more since it wasn't jacked up when I did it.

**************************************************
Ever hit the pavement? I did, put that gear on!

1977 KZ 650C1 - First bike, ever! For sale - or not!?!?
2004 Z750 - More power than I'll ever need...
Gatineau, Qc, Canada eh!

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20 Jul 2008 12:53 #227293 by supercharged
Replied by supercharged on topic Correct chain free play?
I usually check when seated on the bike. The swing arm us usually at its longest position with some wieght on the bike.

If nothing else, always check the chain when on the bike (including passenger if that is common for you) to asure that it is not to tight when loaded as you would ride.

I don't see a noticable difference in tension on my KZ, but newer bikes with more travel and angle... could be very noticable.

Mike D
- 79 KZ1000 LTD Supercharged
- 80 KZ1000 1105cc Pridmore/Vetter tribute
- 79 Honda CBX
- 03 Z1000 Mod
- 80 KZ1000 LTD Modified
- 80 KZ1000 LTD PROJECT on Hold
- 78 KZ1000/900 - Street big block
- 78 KZ1000-NEEDS HELP!
- 80 CBX -Project STARTED
- 81 GPZ1100
- GSRX1200
- 80 CB750F supersport......

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20 Jul 2008 13:39 #227301 by steell
Replied by steell on topic Correct chain free play?
The marks on each side of the swingarm are not always accurate.

I throw a ratchet strap over the seat and connect it to each side of the swing arm so I can pull the bike down until until the swing arm is parallel to the ground and the front sprocket, swing arm, and rear, sprocket form a line parallel to the ground. That is when the sprockets are the furtherest distance apart and the chain is tightest.

Sitting on the bike and adjusting it may cause the chain to be over tight when you hit a bump and the shocks compress.

KD9JUR

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  • SebRain77
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20 Jul 2008 15:29 #227312 by SebRain77
Replied by SebRain77 on topic Correct chain free play?
Ratchet strap! That's a genius Idea! I'll do that. Seems like a good idea!

**************************************************
Ever hit the pavement? I did, put that gear on!

1977 KZ 650C1 - First bike, ever! For sale - or not!?!?
2004 Z750 - More power than I'll ever need...
Gatineau, Qc, Canada eh!

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20 Jul 2008 15:41 - 20 Jul 2008 15:42 #227315 by bountyhunter
Replied by bountyhunter on topic Correct chain free play?
supercharged wrote:

I usually check when seated on the bike.


Bullseye. And roll it forward about six chain inch intervals and keep checking play. It does vary.

1979 KZ-750 Twin
Last edit: 20 Jul 2008 15:42 by bountyhunter.

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20 Jul 2008 15:46 #227316 by bountyhunter
Replied by bountyhunter on topic Correct chain free play?
SebRain77 wrote:

It states that a free play of 3/4 inch is required. But this is when bike is on a block or centerstand. I have that 3/4 inch free play.


IMHO, that's too tight. My manual says 25 - 35 mm play when it's on the stand which is about 1 - 1.4".

Be very sure to check it at many places to ensure you don't have a tight spot.

1979 KZ-750 Twin

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21 Jul 2008 15:22 #227504 by dannyg40
Replied by dannyg40 on topic Correct chain free play?
bountyhunter wrote:

SebRain77 wrote:

It states that a free play of 3/4 inch is required. But this is when bike is on a block or centerstand. I have that 3/4 inch free play.


IMHO, that's too tight. My manual says 25 - 35 mm play when it's on the stand which is about 1 - 1.4".

Be very sure to check it at many places to ensure you don't have a tight spot.


IMine says 1 - 1.4 inches also.
I tried the 3/4" adjustment and the chain felt to "tight". I put it back to the 1 1/4" setting and all is fine. I would rather have a little more play than a chain to tight and have it snap.

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  • SebRain77
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22 Jul 2008 07:14 #227619 by SebRain77
Replied by SebRain77 on topic Correct chain free play?
I did set it up at 1.3 inch free play. All seems good, I don't hear the chain hitting the chainguard anymore when going over some bumps. What will it be next?!
Thanks :)

**************************************************
Ever hit the pavement? I did, put that gear on!

1977 KZ 650C1 - First bike, ever! For sale - or not!?!?
2004 Z750 - More power than I'll ever need...
Gatineau, Qc, Canada eh!

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