I'd read from somwhere though that is running 25% or lower nitro (Im running 25% O'donnell) the mach prefers a hotter plug which is why i am using an OS LC3 (someone else uses them from LSTCentral and they seem to find its a great plug?). What i might do is use another LC3 which i have and see if i can richen it to a peak where the engine is ok. Reason is engine isnt fully broken in yet so its still running hot. Hopefully another 10tanks and it should cool down.

I always thought that 3 1/2 turns what be safe due to that being advised, never thought it could be too lean for my engine (each engine differs for each person). Time to get out there and start tuning and if same problem persists, il try at a colder plug. However when i was using it, i was going up some really steep hills in high gearing so therefore was pushing the truck much harder then i maybe should have...

Cheers for info

UPDATE

Rang up UK distributor and he said he's seen it where there is a funny needle which wont like running at 3 1/2 turns. He's advised me to run at 4 1/2turns and it should be fine and then if i can, lean it down. Apparently its a problem he's seen before and he also said the engine wasnt at all fussy with matter of glow plugs. If not he said it might be a blockage in the carb so if it doesnt sort itself out when im richening it, he's going to have a look at the carb for me

Man i love Team Losi's support, A*