Yes it does go off with a little throttle but comes back again on hard throttle in gear; the engine will hit a flat spot around 6000 rpm and kill plugs and die. Jetting is in work and getting parts right now.
Had a little peak down the plug hole, top cylinder running rich but no foreign or metal stuff inside, but the bottom cylinder had some glitter in it and maybe some dents on the head cant say for sure due to plug hole is only big enough for one eye view thus no depth perception.
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