cold/hot idle transition

[Ricky]

Have you removed the coldstart spring from inside the pump?

If not, I would disconnect the thermostat cable, set it right, then you know it's not going to arse about when it gets warm. The reason it goes into that wierd mode where at a guess it drops to about 500rpm and just shudders and jumps around? That's because the governor speed slows enough that it can't control the throttle enough to bring the idle back up... That's your antistall not working properly...

Have you tried putting in the throttle min stop just to bring the throttle off the stop, that can often help just having the throttle held up a bit - from there you can adjust the hot and cold idle adjusts on the back of the pump.

Haven't touched anything inside the pump yet, not gov modded or anything yet.

I have screwed the min. stop screw back in so it's now resting on that, and it seems ok-ish now, the cold idle still needs sorting I think though. The only time it dropped down is when I tried rolling forward a bit just on the clutch, it was low enough to almost stall, but tapped the throttle and it raised back up again. Is the anti-stall to do with the screw that the throttle rests on?

I just don't know how much to turn the max fuel on average to get enough fuel for around 28psi, i'm thinking that just whacking up the max fuel will just damage things.