[Stryker2012]

I need to tighten up my belt, but my metric wrenches only go up to 21mm so I have to go buy a couple more. What size are the axle nuts? (both sides)

Thanks in advance.

 

[Skwerlee]

I need to tighten up my belt, but my metric wrenches only go up to 21mm so I have to go buy a couple more. What size are the axle nuts? (both sides)

Thanks in advance.

22mm...i just use crescent wrenches. Put the bike on a stand to get the rear wheel off the ground. Loosen the 22mm axle nut and then adjust the belt tension/alignment with the small 12mm nuts on both sides of the swing-arm. Adjust in 1/4 turn increments equally on both sides as it doesn't take much. What I found helpful is to run the bike in 1st gear...and watch the belt from behind. You want to see the belt ride in the middle of the rear pulley...not hugging the left or right side too much as it will squeak. It can be tricky finding the right combination of both belt tension and alignment. Just be patient and don’t kick the bike over off the stand in a fit of rage! Once you've found the sweet spot torque the 22mm axle nut back to 110lb's BEFORE you snug the 12mm nuts a tad. Then put the rear end back on the ground. Take it for a spin and kill the bike at low speeds to listen for any belt noise or funny vibrations.

 

[Stryker2012]

****...short by 1mm -

Thanks... I tried the adjustable, but it is too tight, and I don't want to round it off.

 

[Stryker2012]

wow, you can't even say d**n!!!

 

[Skwerlee]

wow, you can't even say d**n!!!

that's a bunch of bull sh!t

lol just have to get creative with the spelling

 

[BillyD66]

I don't think they are both 22. I think the muffler side is 27. I should know since I did the front pulley mod but I got a number of new sockets for various projects at the same time. That said the 27mm was a separate purchase from the set so I think it was for that. I know the 30mm was for the front pulley. Do a search on front pulley mod since the info was given to me in that thread.

And no offense but don't half-ass this project. Those axle nuts need to be correctly torqued to like 110lbs NOT by a crescent wrench(see the online manual for the exact specs). Too much riding on that axle(potentially your life!!) to take shortcuts.
That said, you can rent the torque wrench from Auto Zone etc. if you don't want to add to your tool box right now.

 

[kraaazymike]

I'm with billy d. 27 and 22. But I use a crescent wrench for the 27mm nut and a torque wrench for the 22mm bolt. With the Cobra exhaust I wouldn't be able to fit a socket wrench.

 

[Stryker2012]

Already have a torque wrench, just gotta get the 22mm socket . Thanks! ....and I'll be doing the pulley mod next

 

[11Stryker]

Heres the link for the front pulley mod. http://www.yamahastarstryker.com/18-mods-accessories/1797-changing-front-pulley-more-power.html

 

[Stryker2012]

Thanks for all the feedback everybody. This is one of the best forums I have been on.

To 11stryker: Do you need a puller for the pulley, or will it just slide off?

 

[11Stryker]

Slide right off after you take the nut off. 1/2" Air Impact works best for taking off.

 

[Stryker2012]

Awesome...so I downloaded the manual, and was noticing they reference loosening the right side axle nut when adjusting the belt (and torquing the same) which means removing the pipe. Can you just use the left side instead, and use a wrench on the right just to hold tension? (my last bike was a shaft drive and didn't have to worry about that, and the bikes I had before that were chain...and I just put a wrench on both axle nuts, loosened, adjusted, tightened and made sure the wheel ran true. ) Been a mechanic for years, so I know sometimes things are done a certain way for specific reasons. Just want to make sure this is (or isn't) one of them. Thanks!

 

[11Stryker]

Yes, Just torque from axle side. Won't be as true as torquing nut, but do it with weight off rear wheel if you can and you should be OK.

 

[Adrenaline Revolution]

As a rule, if you are torquing from the head of the bolt you need to add a certain percentage to the desired torque value because the bolt is apt to twist a bit and also it will be affected by any friction within all the spacers and swingarm.
If someone will tell me approx what size the bolt shaft is in SAE I will check with the Engineers here for a corrected torque value for torquing from the head.
Also, (Sorry) give me the torque value as listed per the manual in SAE as well.

As long as we're doing it, we might as well be doing it right!!!:thumb:

 

[11Stryker]

Well- if were going to do it correctly, The mufflers need to come off and torque nut properly.

 

[Guest]

I will say that when I torqued the bolt to 110 ft/lb with a wrench on the nut, I never felt any movement on the nut side.

 

[Adrenaline Revolution]

Well- if were going to do it correctly, The mufflers need to come off and torque nut properly.

Correct!