2014 polaris sportsman 500 h.o carb
#11
#12
What about the pilot jet? Smaller diameter jet inside carb, very tiny hole in through it? Was it cleaned, replaced? If only cleaned, strip a piece of wire and take one strand of it and run it through the pilot. Never use drill bits. Some torch cleaner tips can work as well.
we always use a low pressure air pump(like a "mity vac" to test whether the float valve is sealing off correctly. Should hold 5 psi for 5 minutes.
we always use a low pressure air pump(like a "mity vac" to test whether the float valve is sealing off correctly. Should hold 5 psi for 5 minutes.
#13
the pilot jet was replaced with new 1 that's the 1 i was asking if it had a adjustment to or was it supposed to be bottomed out. as far as the float valve goes we cleaned it there is no fuel running out the overflow, finally got it to idle half way decent but still really boggy until about half throttle
#14
I think we are talking about 2 different things. The pilot you are talking about, is it inside the carb bowl, or outside? If it's the one inside the bowl, screw it it snug/tight. Is there a brass plug(1/4 in diameter, or close, never measured one) with a tiny hole in it, outside the carb bowl, in a small "tower" directly in front, and it points down. There is the air fuel mixture screw in there and that where the 1.5 turns comes into play.
I'll look for a pic.
I'll look for a pic.
#15
#16
yes the 1 on the inside of the bowl is snug that was the 1 i was uncertain of adjustment ....... now then the air/fuel mixture screw is supposed to have 1.5 turns from bottom out right ? there was no plug covering up the screw and yes it is set at 1.5 turns approx. but idles rough almost dies and extreamly boggy until about half throttle then takes off like a missile but will almost die and most of the time does as soon as i let off the throttle
#18
When you cleaned the carb, did you make sure air, or aerosol carb cleaner, while spraying in the pilot port, came out of the air/fuel port, and also into the bore of the carb? Jet and mixture screw not installed. Sometimes I have seen people clean the jets( or replace them) and there is a blockage in the carb body passages.
Another area that gets overlooked is the ports in the back of the bore. They have function too.
Another area that gets overlooked is the ports in the back of the bore. They have function too.
#20