2005 warrior spark plug black

[myrodman]

i need help 2005 warrior 2500 miles ran great last year pulled out for the winter change oil and cleaned carbs sled has a poping sound at low speeds took out spark plugs and repaced them number one plug was soot black have had carbs of numerous times all jets are clean all passages are clean and flowing have swaped floats, float needes, floats are set to correct height chokes are working correctly have checked for spark and checked coils all coils check good but swaped coils anyway. took sled to a dealer they said carbs were out of sinc and they sinced carbs just rode sled about 30 miles exhaust still sounds different of idle but sled runs fine number one spark plug is still black while the other plugs are fine any ideas on why #1 plug is always black thanks

 

[myrodman]

ttt

 

[Silver]

Try changing the coil pack unplug number one and switch it with say number 4.I had bad coils on mine.

 

[myrodman]

have tried this and its still the same if i lean the idle screw on # 1 and richen #234 do you think it will work thanks

 

[Riceburner]

Did you sync the carbs after having them apart for cleaning?

If not try that.

 

[myrodman]

hello i did sinc the carbs and it did help #1 plug went from soot black to rich black im i being to picky and worrying about nothing? thanks

 

[Len Todd]

What do you have the Fuel Screw set to on # 1? All fuel screws should be set to two turns out from the bottom.

Also, is #1's float level set the same a the others? There is a procedure for checking float level. Attach clear tube to carb drain, open drain and hold tube up to see where the actual fuel level is. Measuring the floats with a ruler is designed to get them all relatively the same. Checking the fuel level is to make sure they all have fuel to the right internal level. In this case, this check will tell you if the needle valve is working correctly.

Plugs should all be looking the same. If #1 is blacker, then #1 is running richer. This is not optimal.

Did you look at #1's Needle's clip position? Is it the same as the others. Are all the springs in the 4 carbs the same color?

Did you look for a light-show around the # 1 coil in a darkened room with the coil's centering grommet off? There could be something unique to #1's coil hole that causes whatever coil to arc.

 

[myrodman]

thank you ill try this thanks again

 

[myrodman]

hello jetted and clutched the sled for west yellowstone montana sled ran rich on #1 bottom end was terrible mid range was ok i checked for the light show found nothing swaped coils did not change anything when i got back home i did the float check with a clear tube #1 is alittle lower than the others carb2,3,4 are all the same checked the c clip on the carbs all are in the center w /1 washer above and 1 washer below the clip swaped chokes between #1 and #4 did not change anything does anyone have any other ideas or know a good dealer in my area? thanks

 

[myrodman]

purchased a used set of carbs tore them apart cleaned and sinc them problem is fixed talked w/ ulmer they said they've had this problem and fixed it the same way thanks