Is this chain too loose?

Its a little bit too loose. You want it just a little tighter. My chain right here is adjusted right about where you want it.

IMG_0617.jpg

Did you follow the specs in the manual for the '06....1.9~2.3 in

Nope, I left my manual up at my trailer. :thumbsup:

Also, that is the factory chain. Is that slack caused by it wearing out? I have only ran about two tanks of gas ran though that bike. If so what is a good chain to put on it and what is the chain part number so I can order it online.

Thanks...

The quick check is to put three fingers behind the chain slider on the top of the swing arm. If it pulls up nice and tight, then you should be good. Of course, it never hurts to make an actual measurement from time to time and if your fingers are odd-sized, take that in to account!

Yah, I do about 2 1/2 fingers right above the screw on the top of the plastic swingarm guard. Manual spec seems a hair too loose.

Yah, I do about 2 1/2 fingers right above the screw on the top of the plastic swingarm guard. Manual spec seems a hair too loose.

Spec is a little loose so you will not trash a hub??? :thumbsup:

Looks alright, but could be a tad tighter, mines 2, maybe 2.5 fingers under rear chain slider bolt, but I have big fingers.

Thanks guys!

Hey crash , By looking at your picture, tighten the chain a bit . But if I saw correctly put your case gaurd back on . TM design works awesome . Cuz a torn up hub will be the least of your worries if that chain flies off .

Its a little bit too loose. You want it just a little tighter. My chain right here is adjusted right about where you want it.

IMG_0617.jpg

Too me that looks way too tight.

Too me that looks way too tight.

Yeah, I wouldn't say "WAY TOO TIGHT" because I seen tighter on some Honda's, but it's on the tight side for sure.

That isn't a Honda.

There have already been two rear hubs broken on '06's that we know of from posts on this forum, both, IMO, due to excessively tight chains. The '03 spec was 1.6-2.0", and the '06 spec is 1.9-2.3". I'd say a little more caution was in order, wouldn't you?

The chain in the picture looks OK to me based on how my '06 looks. The '06 chain does not look the same as the earlier models when it's set up right. The only correct way to do this is MEASURE IT... at least once, anyway.

Also grayracer could a excessively tight chain be bad for the motor(countershaft)?

Absolutely! The force that an be created by cycling the suspension through the tight point with an excessively tight chain is far greater than anything the engine can muster up on its own. It is almost the only reason that chains physially break other than gross wear or incorrectly assembled master links. It can do a lot of damage to any assembly the chain is connected to.

That isn't a Honda.

I was just saying, I seen really tight one's on some Honda's, but I think I heard someone say that the Honda's slack is tighter than Yamaha's. Yeah...I seen the broken hubs, and I also agree they were from too tight of chains. It's safer to run more on the loose side than on the tight side IMO, but wouldn't you agree? Sure...the best side to be on is the correct one (within chain slack listed in manual).

Like I said, his chain LOOKS to be tight in that one picture he posted, as for the thread starter, from what my CORRECT slack is, it looks loose, but it still could be within the correct range for recommended slack, like Grayracer said, only way to know for sure is to measure it.

One of the things that throws off the visual on the '06's is that the high point in the middle of the swing arm is higher than the earlier ones were, and the spec actually calls for more slack.

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