Hi,
I'm setting up my DT500 engine to run on Methanol, and need some help on carburetor settings. Its running on standard type 6 carbs
I've got the engine running on methanol (well ticking over at least...) I've fitted 600 jets. I start the engine after tickling the float chambers but it starts to die after a bit of running. If I tickle the front float chamber again the engine picks up again and continues running smoothly. I therefore assume the fuel level is too low when left to the float to set the level.
On checking the specific gravities of petrol and methanol I find that petrol is lighter, and therefore the float will ride higher in methanol, causing the fuel level to be lower. Did Amal use different spec floats or fuel valve needles, and if so what is their spec and are there any markings to distinguish them? One of my floats is stamped with "30"
Thinking about the engine running on methanol with wide throttle openings, will the standard apperture in the float bowl lid feed union be big enough to supply enough fuel? If not how large should it be, and are larger diameter fuel valve needles available to suit?
Any info to help me move on would be much appreciated, TIA Douglas
PS this is my Buzzie engine!!