Honda 400ex wont stay running
#1
Honda 400ex wont stay running
Hi I have had my 400ex over a year and just installed a 440 big bore kit on it and I got about 3 hours on it and it started sputtering and sputtering an cutting out so we clean the carb out real good didnt help tuned the carb still didnt work changed the spark plug on it an still didnt do the trick I ajusted the valves as well and now it will only run when I hold the throttle down over half way and it smokes a lot and not sure what to do next any ideas???
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