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I own a XF125GY Supermoto Pioneer 4-stroke single cylinder.

I put too much oil in it so I did an oil change and put in a new spark plug then I noticed that oil had got into my air filter and that the engine misfires at around 6000 RPM and recovers around 5000 RPM.

Can anyone advise me on what I should do to fix this problem?

With thanks, Richard

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1 Answer 1

First of all, I hope you have drained the excess oil, you'll also need to clean the air filter and spark plugs to ensure they are all working as they should. You may have to remove the air filter housing to give it a good clean with carb cleaner or brake cleaner to remove the oil build up.

The spark plugs should be cleaned with a similarly volatile cleaner so no oily residue is left and can be cleaned with a stiff nylon brush.

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