RJX mod

[whiskey29]

Thanks Tom for the suggestion,

I will re check the vent hole. When I fill the tank, it overflows to the vent hole,
do you think the fuel left in the spiral vent line can affect air flow ?

I will remove the plug and take a picture,
however, I did cool the engine down before shutting it off, the plug might be dirtier than it should be, or is it not ? Should I just take shut the engine off right after in higher RPM, and take the plug off after it cooled down ?

Thanks
Irwan

[whiskey29]

Just tested it this morning, I richen the needle by 1/8. so its 1 3/8 now, it seems to have constant power until nearly the end of the flight. Headspeed was 1800 all the time my ratio is 7, so it's under 13000.

I havent check the plug, I cut the flight short, the air field is muddy from heavy down pour last night.

I have other problems to sort out now, wobbling when switching from one mode to the other, it sometimes wobble to on descent.
Quite happy with the engine right now, but cgy750 needs tuning.