Stratocaster
RC Newbie
This is the engine in question:
http://www.go-engine.com/pdt_view.asp?sn=173&area=1&cat=1
Its a new engine. Straight out of the box, hardly had it running yet.
Here's the issues I'm having with it;
There is a lot of pinch at TDC. Now I understand that this is a good thing but its so tight that my starter box has a lot of trouble turning it over unless its heated up to 95 - 100C.
So I heat it up to 95 - 100C and turns it over fine, but the carb is so hot I have a lot of trouble getting fuel to it. When I blow into the exhaust tube to push fuel to the carb it does this backwards and forwards thing. I believe that its because the fuel is vaporising and pushing it back out of the carb.
I've done everything I can think of (short of taking it off while I heat the engine) to keep the carb cool including wrapping it in tinfoil and cold damp paper towel, but to no avail.
I'm heating the engine by putting a heating cap over the heat sink and using a heat gun on the crankcase as the heating cap doesn't seem to be up to the task on its own.
The idle screw is set to 1mm and I've tried the high and low speed needles at factory settings and both slightly leaner and slightly richer, even a lot richer.
I've had it running very briefly, like a 1 or 2 seconds a couple of times and it just rev'd up then cut out straight away. I had quite a bit of trim on my throttle. Stupidly I can't remember what my needle settings were when it did this, I think the low speed was lean from factory settings and the high speed was rich.
Any thoughts or ideas will be welcomed.
*I should also mention that while trying to prime the engine by covering up the exhaust I am getting fuel on the end of my screw driver. So it does seem to be putting fuel through the engine.
http://www.go-engine.com/pdt_view.asp?sn=173&area=1&cat=1
Its a new engine. Straight out of the box, hardly had it running yet.
Here's the issues I'm having with it;
There is a lot of pinch at TDC. Now I understand that this is a good thing but its so tight that my starter box has a lot of trouble turning it over unless its heated up to 95 - 100C.
So I heat it up to 95 - 100C and turns it over fine, but the carb is so hot I have a lot of trouble getting fuel to it. When I blow into the exhaust tube to push fuel to the carb it does this backwards and forwards thing. I believe that its because the fuel is vaporising and pushing it back out of the carb.
I've done everything I can think of (short of taking it off while I heat the engine) to keep the carb cool including wrapping it in tinfoil and cold damp paper towel, but to no avail.
I'm heating the engine by putting a heating cap over the heat sink and using a heat gun on the crankcase as the heating cap doesn't seem to be up to the task on its own.
The idle screw is set to 1mm and I've tried the high and low speed needles at factory settings and both slightly leaner and slightly richer, even a lot richer.
I've had it running very briefly, like a 1 or 2 seconds a couple of times and it just rev'd up then cut out straight away. I had quite a bit of trim on my throttle. Stupidly I can't remember what my needle settings were when it did this, I think the low speed was lean from factory settings and the high speed was rich.
Any thoughts or ideas will be welcomed.
*I should also mention that while trying to prime the engine by covering up the exhaust I am getting fuel on the end of my screw driver. So it does seem to be putting fuel through the engine.
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