While I was in the process of doing the NYROC exhaust mod and adjusting my valve clearance this weekend I discovered that the front of the rubber boot that protects the rear drive shaft has come loose from the crank case. Has this happened to anyone before? If so, do you have any tips to put it back on? I have tried for three hours and am at witts end. Does the fact that the boot has come loose mean that contaminants may have gotten into my rear diff. or is there no way for that to happen? I am going to check on the 424 in the morning to see if looks out of sorts. Did any one else find that adjusting their valves required the flexibility of a circus preformer and the patience of a saint? I hope to have everything back together tomorrow so I can see if the exhaust mod combined with the Dia.G snorkle and the black spring will make a big difference.

Thoughts?

ED

 

GOOD LUCK, been there done that... long time ago I think I ended up getting by luck. Start on the bottom and work up, it requires 2 people and the only other way is to tear the swingarm appart. Make sure you clean it well, DO NOT GREESE IT, at least that's what I was warned about. After you get it on you should pull out all the bubbles so it doesn't wear and pop holes in the boot.

 

Well,

I was able to get the drive shaft boot back on and for anyone else that needs to do it, attach the front of the boot first to the crank case and then attach the back of it to the swing arm. It is just about impossible to go swing arm and then crank case. Nyroc exhaust mod sounds great. Will get to test it out later this week.

ED

 

sorry I guess I forgot that important piece of info.[img]i/expressions/face-icon-small-frown.gif[/img][img]i/expressions/face-icon-small-confused.gif[/img] Did you get the kinks out?

 

Yes,

I was able to get all of the bellows to go back to their normal position.

Thanks,
ED

 

One method to check for possible water inside the swing arm is to remove the foremost lower rear differential skid plate mounting bolt (8 MM if my memory serves me correct). If water is inside, out it will come. I just recently experienced this. In process of my typical "Spring" cleaning of my ATV unit. I remove all the exterior racks, plastic, etc,,give it a through frame and power train cleaning. I had to replace a frt differential rear seal, etc. When I removed the plastic plugs from the rear siwingarm, I noted "dirt/debris" on them,,indicating dirty water contact. Although the boot between the engine and swingarm was in good condition, I realized something was up. I removed the afore mentioned bolt, out came a cup or so of water. (??). As I had on occasion head a "pop" noise in the rear area, I removed the rear wheels to inspect swingarm bearing condition. Felt fine. On a hunch, I removed the rear swingarm. Swingarm bearing on the left side fell out in pieces. Right side was rusty looking. As it turned out the swingarm seals had deteriated (most likey from dirty/sandy water exposure) thus permitting water to enter into the swingarm. I will now have to add this inspection to my spring check list.