hey guys.
i need a bit of help setting my fuel mixture screw on my KTM 450 EXC 2004 model.
ive currently got it 2.5 turns out from closed. i think it might be a little rich, however the only symptoms i had of it being too rich, is that i barely need to use choke to start the bike up; i only need to use choke for a few seconds.
the bike isn't hard to start at all when hot and there are no other symptoms to suggest that im running too rich.
the reason why i think i might be running rich is because others have said that anymore than 2.5 turns out means i need a bigger pilot jet.
all my jets are stock, as per the manual and recommended by various KTM dealerships around my area. I am not interested in purchasing a JD Jet kit just in case anyone was going to suggest that.
I tuned the carby as per the manual, by setting it at the basic/factory setting of 1.25 turns out then turning the mixture screw in(clockwise) until idle decreased, then back out(anti clockwise), until the bike started to die again......then set it at the highest point between these 2 points which was 2 - 2.5 turns out from closed(the idle didn't change between these marks), so i set it to the 2.5 turn mark as i thought its better to run richer than it is to run leaner.
the current set up is:
main: 178(stock)
needle: OBDTR on the 4th clip(stock)
pilot jet/idle jet: 45(stock)
starting jet: 85(stock)
Mixture Screw: 2.5 turns out from closed
Float Height is set to stock height of 2.5mm
all stock jetting.
im just wondering what others recommend the fuel screw setting should be(roughly) or what others have it set to on their bikes, preferably from KTM RFS owners.
at the moment its spring season down here where i live, average temperature of 15 degrees Celsius(59 degrees Fahrenheit)..and cold, but during summer time it gets up to 35-40 degrees Celsius(104 degrees Fahrenheit) on average.
i need a bit of help setting my fuel mixture screw on my KTM 450 EXC 2004 model.
ive currently got it 2.5 turns out from closed. i think it might be a little rich, however the only symptoms i had of it being too rich, is that i barely need to use choke to start the bike up; i only need to use choke for a few seconds.
the bike isn't hard to start at all when hot and there are no other symptoms to suggest that im running too rich.
the reason why i think i might be running rich is because others have said that anymore than 2.5 turns out means i need a bigger pilot jet.
all my jets are stock, as per the manual and recommended by various KTM dealerships around my area. I am not interested in purchasing a JD Jet kit just in case anyone was going to suggest that.
I tuned the carby as per the manual, by setting it at the basic/factory setting of 1.25 turns out then turning the mixture screw in(clockwise) until idle decreased, then back out(anti clockwise), until the bike started to die again......then set it at the highest point between these 2 points which was 2 - 2.5 turns out from closed(the idle didn't change between these marks), so i set it to the 2.5 turn mark as i thought its better to run richer than it is to run leaner.
the current set up is:
main: 178(stock)
needle: OBDTR on the 4th clip(stock)
pilot jet/idle jet: 45(stock)
starting jet: 85(stock)
Mixture Screw: 2.5 turns out from closed
Float Height is set to stock height of 2.5mm
all stock jetting.
im just wondering what others recommend the fuel screw setting should be(roughly) or what others have it set to on their bikes, preferably from KTM RFS owners.
at the moment its spring season down here where i live, average temperature of 15 degrees Celsius(59 degrees Fahrenheit)..and cold, but during summer time it gets up to 35-40 degrees Celsius(104 degrees Fahrenheit) on average.
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