TRX250R.ORG
Workshop => Suspension and Chassis => Topic started by: Troy on June 02, 2016, 10:45:26 PM
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OK so I got my new lonestar swingarm on today, and bolted on my new TM chain guide, but it doesn't line up with the sprocket. Anyone else had this problem? Thinking lonestar might have screwed up on the mount. Here's some pics(http://forums.trx250r.org/vbulletin_imports/1760_7844_2017-04-18_3385.jpg)
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I have a lonestar an don't have that problem. I can get some measurements over the weekend to compare.
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That would be great thanks
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That would be great thanks
Troy what kind of carrier is that?
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It's a rad double row
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Is that by chance a new LSR axle as well? I might be crazy, but it looks like your sprocket hub is sitting further into the carrier than it should be. Some axles have an aluminum sprocket hub, but a steel insert that actually rides in the carrier seal. I wondered if it might be missing.
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The axle is 12 or 13 years old, I ran a straight edge on the sprocket to the front sprocket and going by that the axle needs to slide in farther. There's probably a half inch difference
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The axle is 12 or 13 years old, I ran a straight edge on the sprocket to the front sprocket and going by that the axle needs to slide in farther. There's probably a half inch difference
Is the sprocket in line with the counter shaft sprocket?
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No it's off a bit
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No it's off a bit
Does your brake rotor line up correctly with your caliper?
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Yep lines up perfect
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Have you given a call to Lonestar yet? No one is above reproach. It is possible then that the swingarm itself is bad. And bearings in carrier is still good? Bearing surface on axle is still good?
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I believe [MENTION=29]oldschoolr[/MENTION] is running a LSR swinger.
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It all seems good, going to call lsr
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Sent them some pics, we will see what they say
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Pm sent
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I'm posting pics with measurement tonight. 1 5/8 to the outside
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OK thanks
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(http://i739.photobucket.com/albums/xx38/theburgler/Mobile%20Uploads/2016-06/20160603_211430.jpg)
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(http://i739.photobucket.com/albums/xx38/theburgler/Mobile%20Uploads/2016-06/20160603_211318.jpg)
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my chain rides a lil to the right on the tm rollers its not dead in the middle but i have no wear issues. hope the pics help. my swinger was new 2 years ago if that info helps. if ya need anymore pics I'm happy to help.
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Can you explain those pictures it's hard to tell
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1 5 /8 off the swinger to the outer edge of swinger guide. 1/4 inch to inner edge of guide mount off swingarm
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OK I will check mine out, I'm pretty sure I'm way more than 1/4" off swinger
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Mine is 3/4" inside and 2" to the outside(http://forums.trx250r.org/vbulletin_imports/1760_7851_2017-04-18_8533.jpg)
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Definitely different the mine
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How old is your swingarm, I guess they have changed them over the years. Called lsr, sent pics they say it's supposed to be 3/4" off the swingarm. I might end up putting the chain guide in the mill and making a spacer for it to move it over.
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How old is your swingarm, I guess they have changed them over the years. Called lsr, sent pics they say it's supposed to be 3/4" off the swingarm. I might end up putting the chain guide in the mill and making a spacer for it to move it over.
I'd be tempted to cut the mount off and move it to center it myself.
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that sucks that was lsr answer. did ya buy it powder coated ? an it would suck to ruin the finish by cutting it off i think ya got the right idea by milling the guide.
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Yep it's pced silvervien
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Interesting and worrying thread. I just ordered a LSR +4 last week on ebay, along with the cheaper $75 "Lonestar chain guide set". Not sure if I'll get it in a week or if it's a "Special order" month long wait. I'll report back if I run into any fitment issues
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It will probably take a few weeks mine did. What axle and carrier are you running?
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Both carrier and axle are LSR, bought around two years ago. I'd figure that I'd have as good of a chance as anyone to have it line up with all the LSR stuff I have.
I went cheap and picked up this:
http://www.ebay.com/itm/1986-1987-Honda-TRX-250R-Lonestar-Chain-Guide-Set-/120979323810?
We'll see if I regret that guide set or not.
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Hope it works out, this is frustrating me, I have mentally masterbated it to death a few times now.
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How old is your swingarm, I guess they have changed them over the years. Called lsr, sent pics they say it's supposed to be 3/4" off the swingarm. I might end up putting the chain guide in the mill and making a spacer for it to move it over.
Is it possible they set the chain guide up for a dirt bike one say a cr for 450 or something?
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Can you post pics showing from the front sprocket all the way to the back sprocket? Just so we can take a look to see if we see anything out of the ordinary.
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I have no idea, I don't know the measurements of any of those. I spent some time in the shop last night pulling measurements, and making sure things where square and it appears my sprockets do line up, and the chain guide is a 1/4" off. Lsr's shop forman was going to check out his 250r and they were going to get ahold of me yesterday but I never heard anything. So I'm leaning towards milling the chain guide and making a spacer plate.
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I have no idea, I don't know the measurements of any of those. I spent some time in the shop last night pulling measurements, and making sure things where square and it appears my sprockets do line up, and the chain guide is a 1/4" off. Lsr's shop forman was going to check out his 250r and they were going to get ahold of me yesterday but I never heard anything. So I'm leaning towards milling the chain guide and making a spacer plate.
I would leave that idea to a last resort. If they swinger is wrong, make them fix it. You paid good money for the part, they should honor that. So I would have them make sure that the part is right or wrong first. If wrong, make them fix it. If correct, then do your own mods.
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Surely you can get some input from others who are running the exact same swinger. I know there are guys on this forum who have the same one. See how theirs measure up. If yours is not the same as theirs, then something is wrong. Let LSR know that.
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I talked to oldschoolr, his is an old one so it's different, I did tell lsr that the thesmith86r measured up different than mine. Hopefully I will hear from them today.
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They just got back to me, double check their measurements and assure me it was built correctly, so maybe something is wrong on my end, (tweaked frame or motor mounts not sure). Can't find anything obvious though
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why would my swing arm have a different measurement did they say anything about that ?
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No they didn't, but they have changed them over the years, how old is your swingarm
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2 years maybe 3 i had it. But how long ago it was made before it sold ? I have no idea
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They just got back to me, double check their measurements and assure me it was built correctly, so maybe something is wrong on my end, (tweaked frame or motor mounts not sure). Can't find anything obvious though
From your pictures, it really doesn't look like your chain guide will fit unless you spacer out your rear sprocket from the carrier. Maybe you could get measurement numbers from LSR on the edge of swingarm carrier area to sprocket and carrier to sprocket?
The whole thing doesn't make much sense to me. What could they have changed that would require a 1/2" change in guide position, except for changing where the rear sprocket lines up relative to the swingarm by 1/2"? It'd make sense if, say, they reduced the overall width left-to-right of the arms by 1" symmetrically at the rear and had to add 1/2" to make up for width loss.
It'd be a very interesting measurement to know the difference between Troy's and TheSmith's right-to-left and right-to-outer-edge-of-chain-guide widths, at the chain guide point.
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Just e-mailed them about that... Again
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They would have to chain the angle of the tubes coming from the front pivot to the carrier
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As long as they are aligning the front and rear sprockets, and assuming stock sized parts for the carrier and axle, there are only one reason the guide would have to be moved outward 1/2": If that left tube coming from the pivot point was moved right 1/2" at the point where the guide is, and only in relation to the rear carrier tube.
So, I guess the best measurement would be, rear carrier tube edge(part that clamps the carrier) to outside edge of guide mount. If that number is different on TheSmith's bike, then the swingarm wouldn't work with the rest of his parts either.
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I will have to pull a measurement there and see, maybe Smith can do the same
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I can get that measurement for ya possibly tomorrow before work
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Cool thanks
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I got 5/8"
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Oops that was inside, 1-15/16" to outside
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The picture I attached has perspective issues, but those seem like your numbers so far Troy? Sorry for terrible paint editing.
So, we got almost exactly 2 inches from both the edge of the swingarm at the point of the guide, and the edge of the carrier clamp tube? And a very similar number matching the inside numbers(off by 1/8 is probably measurement error).
Having this same exact picture from multiple different people, with the measurements filled in(including to the sprocket from that carrier clamp lip part of the swingarm) would go really far in showing if LSR screwed up or not.
(http://forums.trx250r.org/vbulletin_imports/107_7867_2017-04-18_9602.jpg)
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i will try an get the same pic for ya Uns .
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I'm 7/8" to the sprocket. 1/2 thick carrier