ASP 180 FS will not rev above 7800
Good Day,
I have a problem with my Magnum 180 FS. It has around 50 flights and I use 17% synth + 2% castor. No nitro. I use on board glow up to 1/3 throttle.
I am using a Master 16 x 8.
The max revs I can get are 7800 on the ground before it leans and dies. The HS needle is about 1.25 turns out.
When tuning I noticed that pressing in on the needle increased revs. I have wrapped the threads on the needle with teflon and placed some fuel tube over the needle at the inlet junction.
Pressing the needle now does not change the revs.
The LS needle is about 3 turns out and with the pinch test speeds up at idle.
The transition is good from low to max (the 7800 revs).
Blowing into the fuel tank inlet tubing while blocking the muffler pressure tubing would indicate no air leaks.
I have checked the valves and they are ok.
Compression is good.
The HS needle is level with the fuel tank stopper.
Could some one please help me to obtain more revs.
Cheers
CDJ