XTZ660 Power Loss at High Altitude
I've got a 1995 3YF, and two years ago when up in the Pyrenees, suffered severe power loss on the high passes. I would have to go down a gear or two lower than would normally be the case for a given incline. This cleared up when i got low down again, so i put it down to bad fuel and thought no more about it.
Last year, it happened again in the Alps, again on the higher sections. I cannot let this happen again on my trip to the Balkans this year, so need some ideas. I was thinking it was running too rich in the rarified air. I still get 50 mpg at sea level so fuel consumption is good.
Any ideas please?
Steven Jarman, Lancashire