Hi Guys,

Have been running in an RB Con WS9. Started very gingerly last thursday running tanks through at idle then medium speed etc. Lots of blue smoke all seemed to be going well, very happy.

Then first race day. Starts off well. Tune is good but occasionaly on the main straight at full tilt the engine bogs down for a sec then gets going.

Over the course of the day this gets worse. Then Final round of qualifying (5 min heats) it slows down altogether. I bring it in and Temp it and its over 400degrees Farenhit.

Is the engine screwed after operating at that heat is my first question and what would have caused it to get that hot?? It was smokey all day which is a good sign apparently. Does the heat mean too rich or too lean??

Secondly I think i have an air leak. As coming off full throttle the revs dont come down like they should. It keeps open throttle for a second or 2. Is this the sign of an Air Leak as this is what I am told and then how do you go about finding it?? This is a brand new engine so I would hope it doesnt have a leak but maybe it does??

Sorry for the long blog this morning but these problems are frustrating and would love to get to the bottom of them and start embracing Nitro as I am a former Electric racer...

Many thanks

Brian.