Happy Trails spring compressor - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 5 Old 04-25-2017, 07:23 PM Thread Starter
Join Date: May 2016
Location: Duluth, MN
Posts: 11
Happy Trails spring compressor

Has anyone bought a new rear shock spring from Happy trails? You can get either a $110 spring compressor or a $30 one so naturally I went with the cheaper one. Does anybody know how to use this one? I've scoured youtube and google and can't figure it out. I think maybe its for a much smaller shock where you can put the pin in the shocker eyelet and then you can compress the spring. This way doesn't work for a KLR shock as far as I can tell. I'm lost

Last edited by PackyOC; 04-25-2017 at 07:26 PM.
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post #2 of 5 Old 04-25-2017, 09:43 PM
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Join Date: Mar 2007
Location: Fort Sask , Alberta, Canada
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Is this the one you bought??? Looks dangerous. When I changed my shock spring I built my own set of spring compressors. Wasn't pretty, did the job, but probably wouldn't do that again. Was a little scared of things going wrong. You may want to take it to a shop and have them change it for you.

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post #3 of 5 Old 04-26-2017, 07:16 PM Thread Starter
Join Date: May 2016
Location: Duluth, MN
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Yea thats the one. I really don't understand how to use it. They let me send it back and I ordered a different one
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post #4 of 5 Old 04-27-2017, 09:13 PM
Join Date: Nov 2016
Location: Bisbee, AZ
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Have you considered the Tusk spring compressor? It's about $35 from Rocky Mountain ATV, arrives in a small metal box with some plastic jaw protectors to keep from scratching the new spring when it's being compressed. I didn't use them. The compressor is the screw type; I had three different configurations of these for auto use but all were too big to fit comfortably on the KLR shock. Rocky Mountain has a video of the product in use; all I can say is that it works. You need a bench-mount vise, clamp the top of the shock in the vise, hook the compressors opposite one another (after applying grease to the threads) with the bottom of the shock upward. The compressor screw is contained in a metal enclosure that you hold with a crescent wrench while tightening the screw. I used a 1/2" rachet with a stepdown to 3/8" and a 6" extension to clear the shock, a 3/8" rachet didn't give me sufficient leverage. Six twists on one side, go to the other compressor, do the same. Repeat. Over and over again.
You need to compress the spring until the spring retainer collar has about 1/2" free play. Push the shock bumper down on the shock shaft and then you can remove the collar. Once it's out of the way, loosen the compressors until they can be removed then you can lift the old spring off. Do what you want with the shock if you're rebuilding it, otherwise drop the new spring in place, hook a compressor on each side and tighten it down. Takes about twenty-five minutes time total. Watching one of the YouTube videos on KLR spring replacement or the RMATV instructional will clarify what I've described.
Note: I used a small pair of needle-nosed vise-grips to remove and reinsert the collar. Never had any indication that the Tusk compressors were coming loose--something I couldn't say for trying to use automotive devices--but I don't care to put my fingers into a dangerous area around that spring. Eye protection is also a must.
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post #5 of 5 Old 04-29-2017, 06:08 PM Thread Starter
Join Date: May 2016
Location: Duluth, MN
Posts: 11
yea thats what i went with. got them on amazon. and I didn't need a vice, I did it on my kitchen counter with a 17mm wrench. worked very well.
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