Snoboardcore
New member
HEy guys after i come to a stop the sled will idle at 3,000 rpm i have to quickly tap the throttle and it will come down to 2,500 rpm then it will come down to 2,000 after about 10 seconds at 2,500. I know my idle is a little high so i am going to adjust that but why does it hang? Has 130lbs across the boards and the carbs are clean. Any ideas as to what it could be?
taylzee
New member
I am fighting this ame issue. Mine developed when I put Bender pipes on my MM700. I haved tried many pilot/needle/pilot screw settings to remedy the problem. I am getting close but not totally gone yet. It would stand to reason that if it is hanging there is a lean condition on the idle circuit. This portion of the fuel circuit is controlled by the pilot jet/pilot screw mainly. Having said that all circuits do overlap somewhat. I would start by investigating the pilot/ pilot screw for any obstructions (dirt).
Let us know if you find anything..
Let us know if you find anything..
Sometimes just adjusting the idle down will cure it. Should be about 1700. If not turn the fuel screws out 1/4 turn.
daman
New member
It hangs because your lean on the idle circuit, try idling the motor
down to 16-1,650 rpm's, if that don't help(probably won't)pull carbs
off and turn out pilot(fuel) screws to 1 3/4 turns from seat,stock is
1 1/8...
down to 16-1,650 rpm's, if that don't help(probably won't)pull carbs
off and turn out pilot(fuel) screws to 1 3/4 turns from seat,stock is
1 1/8...
it wouldn't hurt to spray some carb cleaner around the crank seals and intakes to check for air leaks. I had a nasty idle hang that I couldn't get rid of, and it turned out to be a leaking cylinder base gasket.
taylzee
New member
I thought if you could get it to come down by blipping the choke, it was just a lean idle circuit.
daman
New member
Right, usally is, but it won't hurt doing RTYsxv's check..
ditchbanger2002
New member
hanging idle
My uncle's viper had a hanging idle also. After driving himself nuts going through all of these checks he brought it in and they found it was from a broken motor mount. Is this possible? i found it kinda hard to belive since the thing wasnt eating belts.
My uncle's viper had a hanging idle also. After driving himself nuts going through all of these checks he brought it in and they found it was from a broken motor mount. Is this possible? i found it kinda hard to belive since the thing wasnt eating belts.
taylzee
New member
I've had broken mount before and didn't find out until I was doing routine maintenance. I thought it odd that I wasn't going through belts. I did even blow one. I am not sure how a broken motor mount can cause the idle to hang. Unless belt load has something to do with it.
I am sure someone will chime in to shed some light on this...
I am sure someone will chime in to shed some light on this...