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Andy7
1/9/2019 6:51am
1/9/2019 6:51am
Edited Date/Time
1/12/2019 12:59pm
Hi guys, I am working on a friend's 2014 RMZ 450 and believe it or not it has 140 hs from new and it still has never had a rear suspension service. He says it is good for a couple more hours. What are your thoghts on this? The bearings were almost welded to the bushings.
The Shop
FWIW at 40 hours the shock oil in my yz250 was hammered, very dark and had contaminates. When I serviced it last I used K2C which is basically clear. The inner cartridge fork oil was actually not AS bad as the shock, but still due for a change. After a 15-20 minute moto the shock body is too hot to even hold onto, the oil is going to lose its intended properties from not only the shear but the heat.
"But it didn't have that play before". I can't decide if that is too funny or terribly sad.
I think 40hrs on a shock is pushing it. That thing had to ride like crap, some people blow me away with what they will send it on....
Pit Row
did he buy the bike new?
does he ride thru a lot of water often?
does he pressure wash the bejesus out of it often?
are the bushings still available? if not you can get one made. if you don't know anyone local that can make one i might be able to help you.
just in case you are not aware, some types of grease offer more protection against water getting to the parts. old school marine wheel bearing grease is one of them. you could almost run the part without seals if you use that type of grease. obviously those seals are mainly just to keep dirt out of the bearings and spray washing will get some water in there.
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I can make it work as long as it looks cool
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