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K-75


Canadian K Rider

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Canadian K Rider

History first, the bike 90 k-75 77 thousand kilometers about a month ago I seen oil in the anti freeze tank, I was on hoildays so I left the bike a BMW shop in Calgary where they change the water pump seal and rotor as well as the head gasket. When I retured to get the bike it ran all right (no oil leaks) but the idle was a little low, I turn up the idle screw but now it backfire when I let of the gas. I pull the plugs last night and only one black. Could this be a bad plug wire? If it was getting to much gas would not all the plugs be black? Any help would be great as the nearest BMW shop is 8 hours away.

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James Clark

If you adjusted the stop screw, you need to adjust the TPS so that the EFI knows when the throttle is closed. The TPS should click when the throttle is moved on and off its idle stop.

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