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« on: May 23, 2012, 01:26:58 AM »
Hi All
I am a newbie to this forum and would like to hear from someone who has installed a J Costa variator into their 250 B&W. I bought my 2002 scoot in South Africa and shipped it over to New Zealand where I now live.
Some background:
I ride 80km (50miles) a day to work and back on flat roads, so I upgraded to the TKC muffler and 24g weight rollers. This gave me more top end and a really noisy scooter. 12months later the TKC bracket broke off, throwing the muffler on to the road which a car promptly rode over and destroyed. I resurrected my old muffler which has nothing left inside but still works.
My Variator:
After 30 000km (19k miles) using the 24g rollers I decided to service the belt/weights and my local scooter shop talked me into importing a J Costa variator + Malossi belt. Big bucks and 2 months later I installed the Costa. The instructions were not really good and I had no idea where to put the thin metal washer, but the rest of the installation was straightforward enough and I put in the new belt as well. However, during testing I found the revs to be way too high (60kph at 6000rpm) - definitely something wrong so I put the old belt back - same result, although the Malossi was a bit on the slack side with higher rpm's at takeoff.
The centre steel bush lengths of the Costa is identical to the stock bush, but I think that either the Costa bush is too long for this setup (maybe shorter with a spacer against the engine?) or the sliders are too light. No, I have not changed the clutch.
Has anyone had similar problems? Any advice appreciated.....
cheers
Nigel