Quote:
Originally Posted by Everett
Sounds like the clutch cable to me. And if it's a shared sump you needs an oil with the JASO spec. I use the rotella t-6 for my jap bikes and I was using amsoil in my Harley but it's getting the rotella next too. Great oil.
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This, exactly. It's a common misconception that you can't run a full synthetic in wet-clutch motorcycles when in fact it can be the best thing for them, especially old bikes. What you need to avoid are oils that say "Energy Conserving" in the lower part of the rating circle on the label. I've been using Rotella T6 since it came out and I'll be running G-Oil 5w40 next season.
If you feel more comfortable running a non-synthetic I'd stick with Mobil Delvac, Rotella 15w40 diesel oil or another quality diesel oil. These oils are made with higher quality base stock and better additive packages for motorcycle applications, especially where the engine and transmission share the same oil.
I'd start trying to solve your clutch issue (which it almost certainly is) by adjusting the clutch, not just the cable. I don't know your bike specifically but it's likely that you also have an adjustment at the actuator rod. Your owners manual should have instructions but if not teh googles will.
It's unlikely you needed new clutch plates at 18,000mi although you may now that it's been slipping. If adjusting the clutch doesn't help then I'd go ahead and order the clutch plates, discs and springs. Do that and you should be good for many years of riding!
Good luck!
-GMPG