Planet Minis

patman · 06-25-2009, 08:57 AM

My street legal Z50 chain always loosens up on me.Last night installed my Daytona rear wheel,got the chain maybe just a bit on the tight side,and went for a nice long ride.When I got home the chain seemed to be loose again.It would do the same thing when I was running the stock rear wheel,with and without the AC swing arm.Should I buy a better quality chain?I use the chain tensioners and alway get the rear wheel good and tight.I don't remember what brand of chain I'm running.Should I buy a D.I.D. or something?It doesn't seem to be hurting anything,but it annoys me.

reynolds_brad · 06-25-2009, 09:06 AM

Ive been running CZ chains on most my minis. They are a bit stiffer then most of the other chains out of the market. They seems to take some serious beatings with out much wear at all.

EddieNewYork · 06-25-2009, 09:26 AM

I bought a used chain and mine does the same thing, hahaha... I have a chain roller too so it's not too bad loose, but I know what you mean. My DID chains never did that so I'll probably pick up a new chain soon.

arlindsay1992 · 06-25-2009, 09:26 AM

Before I crank down on the axle, I put a rag between the chain and sprocket and rotate the wheel. This brings the wheel tight against the adjusters and prevents it from lossening later. Once the axle has been tightened, rotate the wheel back and remove the rag. It takes a while to get used to this because it makes your chain looser than you thought. But once you adjusted it correctly it should stay that way. And once you tighten the axle, snug up the adjusters again. I've had them come loose and fall out on the road before.

arlindsay1992 · 06-25-2009, 09:27 AM

I use a DID chain by the way...

EddieNewYork · 06-25-2009, 09:30 AM

Quote:

Originally Posted by arlindsay1992

Before I crank down on the axle, I put a rag between the chain and sprocket and rotate the wheel. This brings the wheel tight against the adjusters and prevents it from lossening later. Once the axle has been tightened, rotate the wheel back and remove the rag. It takes a while to get used to this because it makes your chain looser than you thought. But once you adjusted it correctly it should stay that way. And once you tighten the axle, snug up the adjusters again. I've had them come loose and fall out on the road before.

Hey arlindsay, are you saying the axles are moving? Cause if you are, that's not what's happening on my bike. Not sure about patmans. My chain actually loosens without the axle moving.

50-STUNT · 06-25-2009, 09:49 AM

i recently bought a did 420....loosend up the first ride " break in"...after that i tightend it back up and hasnt come loose yet!

"i run stock swinger"

arlindsay1992 · 06-25-2009, 10:10 AM

Well, if your chain is coming loose, it's either a cheap chain, or your motor is too strong. I wouldn't rule out the axle moving because a very slight movement of the axle can translate to a lot of chain slack. Also are you sure you are adjusting the chain correctly? If it's too tight, when the suspension compresses the chain will become SO TIGHT that wheel and countershaft bearings can be damaged.

Here's an article to about how to adjust the chain correctly. Remove the space in the URL. The Admins won't let me link to Thumper Talk.

http://www.thu mpertalk.com/forum/showthread.php?t=406650

phatfiddy · 06-25-2009, 10:41 AM

If your chain keeps stretching its either a crap chain or you have it adjusted wrong to begin with. When a chain 'stretches' its not the actually stretching the chain, its developing slop around every pin in the chain. So if you have the chain slightly too tight, it will stretch the chain from pulling it too tight when the suspension compresses. To see if you have a worn out chain just take it off and see how much side to side play it has, as well as front to back. (pushing and pulling on the links to see if theres any play) If your chain is worn then go out a buy a good D.I.D.

JIMMY · 06-25-2009, 10:55 AM

Quote:

Originally Posted by phatfiddy

if your chain keeps stretching its either a crap chain or you have it adjusted wrong to begin with. When a chain 'stretches' its not the actually stretching the chain, its developing slop around every pin in the chain. So if you have the chain slightly too tight, it will stretch the chain from pulling it too tight when the suspension compresses. To see if you have a worn out chain just take it off and see how much side to side play it has, as well as front to back. (pushing and pulling on the links to see if theres any play) if your chain is worn then go out a buy a good d.i.d.

x2^^

patman · 06-25-2009, 12:31 PM

Anybody run an O-ring chain?I've heard they rob torque,but I know they last much longer.

Thanks for all the replies/info guys.

96Justin · 06-25-2009, 12:37 PM

the stock chains are garbage, mine I had to re adjust after every ride eventually tossed it got a renthal gold chain used it once then adjusted for initial break in and havent had to adjust it in months now

fatcaaat · 06-25-2009, 01:02 PM

I have run gold chains on everything since I began updating my motors above 88cc because the same thing happened all the time. Once I put on a real heavy duty chain, it never happened again.

Case in point...I took a brand new, non HD DID chain and slapped it on my CT70 with a TB108 motor in it. And guess what...its doing it again. I'm going to have to go get me a heavy chain. I think a stocker style chain is good up to 88cc...after that, better open up your wallet just a pinch more.

nielspbr · 06-25-2009, 04:34 PM

Even the normal gold chain behaves like elastic if you let a 140cc or more loose on it. Better go for the motocross 420 chains. like did nz, regina rx3 and such.

patman · 06-25-2009, 09:13 PM

I'm gonna check with the local dealers tomorrow to see if they have one in stock.If not I'll order one from Dennis Kirk.If I'd ordered it from DK by 8:00 tonight I'd have had it tomorrow.

Thanks guys.

patman · 06-28-2009, 09:15 PM

I put a standard DID on it.We'll see what happens.

50-50 · 06-29-2009, 07:24 PM

Have you guys had luck with Primary Drive chains? I know the quad guys love them and they'll stretch chains more than a dirt bike will. That's what I'll be getting when I replace my stock chain. But my motor is also stock.

06-25-2009, 08:57 AM	#1 (permalink)
patman 3rd Gear Member Join Date: Aug 2006 Location: Minnesota Posts: 2,211	Chronic loose chain My street legal Z50 chain always loosens up on me.Last night installed my Daytona rear wheel,got the chain maybe just a bit on the tight side,and went for a nice long ride.When I got home the chain seemed to be loose again.It would do the same thing when I was running the stock rear wheel,with and without the AC swing arm.Should I buy a better quality chain?I use the chain tensioners and alway get the rear wheel good and tight.I don't remember what brand of chain I'm running.Should I buy a D.I.D. or something?It doesn't seem to be hurting anything,but it annoys me.

06-25-2009, 09:06 AM	#2 (permalink)
reynolds_brad Advertiser Join Date: Dec 2003 Location: San Francisco, CA Posts: 2,716	Re: Chronic loose chain Ive been running CZ chains on most my minis. They are a bit stiffer then most of the other chains out of the market. They seems to take some serious beatings with out much wear at all. __________________ pecore nere ufficiose Motoshop Z - Honda50.com

06-25-2009, 09:26 AM	#3 (permalink)
EddieNewYork Buck Fifteen Join Date: Oct 2007 Location: Los Angeles, CA Posts: 1,913 My Mood:	Re: Chronic loose chain I bought a used chain and mine does the same thing, hahaha... I have a chain roller too so it's not too bad loose, but I know what you mean. My DID chains never did that so I'll probably pick up a new chain soon.

06-25-2009, 09:26 AM	#4 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,354	Re: Chronic loose chain Before I crank down on the axle, I put a rag between the chain and sprocket and rotate the wheel. This brings the wheel tight against the adjusters and prevents it from lossening later. Once the axle has been tightened, rotate the wheel back and remove the rag. It takes a while to get used to this because it makes your chain looser than you thought. But once you adjusted it correctly it should stay that way. And once you tighten the axle, snug up the adjusters again. I've had them come loose and fall out on the road before.

06-25-2009, 09:27 AM	#5 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,354	Re: Chronic loose chain I use a DID chain by the way...

06-25-2009, 09:49 AM	#7 (permalink)
50-STUNT 2nd Gear Member Join Date: May 2009 Location: M.A. Posts: 722	Re: Chronic loose chain i recently bought a did 420....loosend up the first ride " break in"...after that i tightend it back up and hasnt come loose yet! "i run stock swinger"

06-25-2009, 10:10 AM	#8 (permalink)
arlindsay1992 "High Speed Record Guy" Join Date: Mar 2006 Location: Northern Virginia Posts: 4,354	Re: Chronic loose chain Well, if your chain is coming loose, it's either a cheap chain, or your motor is too strong. I wouldn't rule out the axle moving because a very slight movement of the axle can translate to a lot of chain slack. Also are you sure you are adjusting the chain correctly? If it's too tight, when the suspension compresses the chain will become SO TIGHT that wheel and countershaft bearings can be damaged. Here's an article to about how to adjust the chain correctly. Remove the space in the URL. The Admins won't let me link to Thumper Talk. http://www.thu mpertalk.com/forum/showthread.php?t=406650

06-25-2009, 10:41 AM	#9 (permalink)
phatfiddy 3rd Gear Member Join Date: Apr 2004 Location: brocal Posts: 1,474 My Mood:	Re: Chronic loose chain If your chain keeps stretching its either a crap chain or you have it adjusted wrong to begin with. When a chain 'stretches' its not the actually stretching the chain, its developing slop around every pin in the chain. So if you have the chain slightly too tight, it will stretch the chain from pulling it too tight when the suspension compresses. To see if you have a worn out chain just take it off and see how much side to side play it has, as well as front to back. (pushing and pulling on the links to see if theres any play) If your chain is worn then go out a buy a good D.I.D.

06-25-2009, 12:31 PM	#11 (permalink)
patman 3rd Gear Member Join Date: Aug 2006 Location: Minnesota Posts: 2,211	Re: Chronic loose chain Anybody run an O-ring chain?I've heard they rob torque,but I know they last much longer. Thanks for all the replies/info guys.

06-25-2009, 12:37 PM	#12 (permalink)
96Justin 2nd Gear Member Join Date: Jan 2009 Location: Calgary, AB, Canada Posts: 749 My Mood:	Re: Chronic loose chain the stock chains are garbage, mine I had to re adjust after every ride eventually tossed it got a renthal gold chain used it once then adjusted for initial break in and havent had to adjust it in months now

06-25-2009, 01:02 PM	#13 (permalink)
fatcaaat 3rd Gear Member Join Date: Sep 2004 Location: Arlington, VA Posts: 3,776	Re: Chronic loose chain I have run gold chains on everything since I began updating my motors above 88cc because the same thing happened all the time. Once I put on a real heavy duty chain, it never happened again. Case in point...I took a brand new, non HD DID chain and slapped it on my CT70 with a TB108 motor in it. And guess what...its doing it again. I'm going to have to go get me a heavy chain. I think a stocker style chain is good up to 88cc...after that, better open up your wallet just a pinch more.

06-25-2009, 04:34 PM	#14 (permalink)
nielspbr Euro Seagull Join Date: Feb 2008 Location: Netherlands Posts: 449 My Mood:	Re: Chronic loose chain Even the normal gold chain behaves like elastic if you let a 140cc or more loose on it. Better go for the motocross 420 chains. like did nz, regina rx3 and such.

06-25-2009, 09:13 PM	#15 (permalink)
patman 3rd Gear Member Join Date: Aug 2006 Location: Minnesota Posts: 2,211	Re: Chronic loose chain I'm gonna check with the local dealers tomorrow to see if they have one in stock.If not I'll order one from Dennis Kirk.If I'd ordered it from DK by 8:00 tonight I'd have had it tomorrow. Thanks guys.

06-28-2009, 09:15 PM	#16 (permalink)
patman 3rd Gear Member Join Date: Aug 2006 Location: Minnesota Posts: 2,211	Re: Chronic loose chain I put a standard DID on it.We'll see what happens.

06-29-2009, 07:24 PM	#17 (permalink)
50-50 3rd Gear Member Join Date: Aug 2006 Location: PA Posts: 1,766 My Mood:	Re: Chronic loose chain Have you guys had luck with Primary Drive chains? I know the quad guys love them and they'll stretch chains more than a dirt bike will. That's what I'll be getting when I replace my stock chain. But my motor is also stock.

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