[drf]

Ran my f7 up and down feild on some short burst. Found feed back tach showing 9800 rpm. (anolog or digital) Revs seem to be all over.Thought it may have been due to lose snow condition, but tried it today super hard packed snow, still way up there. Put rear spring in 2nd hole to load motor more no difference. Just wondering if anyone else is having same problem. thanks

 

[drf]

Im showing my ignorance here, but what coil. Has this somthing to due with electrical noise interference. thanks

 

[drf]

RoyT. Thanks this helps. Just went out and looked at the coil. Found white lettering facing through bulkhead and facing exhaust can, if I understand properly, the coil has to be rotated 180 so the white letters are facing inside the bulkhead and facing the motor, with the plug wire still coming out the top, and input (small wires) wires coming out the bottom. correct.