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Discussion Starter · #1 ·

I am after a bit of advice as where to go next with my bike. This weekends CHEC event had a lot of open stubble fields to blast along but when the bike (144sx) was opened up to full revs it began to splutter, not at the bottom of the rev range but near the top. It was fine in the woods but felt as if it was being starved of fuel as you really opened it up and the revs really began reach max. The plug is new as are the piston and rings, the jetting hasn't been touched and the valve on the fuel cap breather is working ok.

Any ideas would be greatly recieved.

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