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[triton]

Hi Gents, Some feedback to my original defect. I fitted a 130 Main Jet. Jet needle clipped in #3 pos (centre). The spitting back was greatly reduced at over half throttle though still there. So I put the needle clip in #5 position (bottom or richest groove) the resulting test was much improved no spitting back at all, however it doesn't rev cleanly it seems to be holding back. Plug was light grey/whitish. What do you reckon up the Main Jet to 140 or install a P4 needle jet as next step.
Thanks

Roy

[Riggers]

I again mate. Sounds like a mirror imaage of the way my bike performed when I made the same changes as you have. If your bike is hesitating after around 50mph in top gear it's beyond the range of the needle jet. I'd enlarge the main jet. You could try 1.4mm but I had to go to 1.5mm (i.e. 150) manually drilled. Good luck! Tony.