01-25-2010, 05:25 PM | #1 |
Join Date: Aug 2009
Location: London, Ontario
Posts: 1,097
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Beast Rear Swingarm Play
So i removed the swingarm out of my beast, after losing the chain a few times and then finally breaking it, i have noticed that there is excessive lateral play in their setup. This was confirmed by measuring up the parts, the bolt is .484" OD, the bushings are .505" ID and the swingarm was drilled to .535" ID, that's too much play for me and might explain why i lose the chain on hard corners.
I have ordered in new bushings as per W&G's yamaha part #307-22123-00, i will install these then measure the ID and find a bolt that is hopefully less than .005" under that, i have a feeling that i will have to drill out the swingarm and bush or line it to get a faily tight fit that will hopefully eliminate the excessive rear end play. Any one else finding their beasts having excessive play in the rear end or did some chinese guy or girl drill my swingarm holes too big. |
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01-25-2010, 06:13 PM | #2 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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We haven't examined the swingarm on TurboT's Beast yet, but he's lost the chain about six times now, two of which were after tightening the chain.
We're planning a tech day. My quad hasn't missed a beat since installing an RK chain and Yamaha bushings. I've never ridden it with the stock stuff.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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01-25-2010, 06:35 PM | #3 | |
Join Date: Sep 2008
Location: Surrey, B.C., Canada
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01-25-2010, 06:41 PM | #4 |
Join Date: Aug 2009
Location: London, Ontario
Posts: 1,097
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LOL...
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01-25-2010, 08:39 PM | #5 | |
Join Date: Nov 2009
Location: montreal
Posts: 242
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01-25-2010, 09:00 PM | #6 |
Join Date: Aug 2009
Location: London, Ontario
Posts: 1,097
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Well my yamaha bushings should be in tomorrow, i'll post some pics, but it should be as easy as hammering the old ones out and hammering the new ones in, W&G suggested putting the new ones in the freezer for a day to aid in installation.
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01-25-2010, 09:18 PM | #7 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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Yep, it's that simple. A little grease helps as well.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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01-25-2010, 09:46 PM | #9 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
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There might be a Honda equivalent, I don't know. I simply took my bushing into the local Yamaha dealer, and the parts guy knew what it was right away. You can certainly buy them at a Yamaha dealer, but you'll need to do a search to answer the eBay question.
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Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
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01-25-2010, 10:57 PM | #10 |
Join Date: Nov 2009
Location: montreal
Posts: 242
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i found the link http://www.chinariders.net/modules.p...ghlight=#75045
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01-26-2010, 03:50 PM | #11 |
Join Date: Aug 2009
Location: London, Ontario
Posts: 1,097
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Ok, i got the bushings today, for reference they are .947"/24mm OD x .483"/12.25mm ID x 1.731"/44mm long.
This looks like it will be a much tighter fit on my bolt so i guess i'll just swap these in and then look for a way to bush or line my swingarm as those holes are too big and are allowing all the play. EDIT, just checked the bolt, still seems a little loose in the new bushings, a new measure if it is only .462", darn that's 21 thou off, i guess i'll try to find a bolt that is closer to a true 12mm. |
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01-26-2010, 04:16 PM | #12 | |
Join Date: Sep 2008
Location: Surrey, B.C., Canada
Posts: 2,185
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Also good to remember you're cold out, and you will have expansion of your parts in the summer. |
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01-26-2010, 06:09 PM | #13 |
Join Date: Aug 2009
Location: London, Ontario
Posts: 1,097
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Yep, measuring the parts with a digital vernier caliper. I guess the bolt didn't matter anyways, it was bent, i'll be getting a new one anyways.
Ok, the old bushings are out, that was way more fun than i expected.....NOT....I ended up drilling 1/8" holes in the rubber to help remove the center sleeve, then i hammered an awl in to split the outer tube and then hammered them out, i thought it would be easier but hey with a drill, hammer, the old bolt and a screwdriver i got them out. Thankfully putting them back in will be much easier, i will put them in the freezer and plan on using a pc of threaded rod with 2 nuts to squeeze them into place, then i have to find a better bolt and a way to sleeve the swingarm. That's it for today, off to a racing meeting. |
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01-26-2010, 06:43 PM | #14 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
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How much use did you have on your ATV before the bushings wore out?
Sounds like a PIA job but once it's done you should never have to do it again.
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01-26-2010, 07:31 PM | #15 | |
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