04 King idles on 1 ! ?

[Rixster]

My king just started running on 1 cylinder when idling. Some times it has to get almost to engagement rpm before the other side fires. Other then this it runs perfect! I changed plugs, no difference. I changed to a new cap, no difference.
It does it all day. When coasting down hill it is running on 1.

Now here is where it gets weird. I swapped the plug wires to the other cylinders, The issure stays with the mag side cylinder. So I test compression. The mag side has More ( like 5 psi) compression the the pto side. So... What is going on?

 

[Ryan31]

check out your kill switch they are known for causing problems

 

[diggerdown]

Have you pulled your carbs and cleaned all the jets and ports? Sounds like the pilot jet could be plugged. Only other thing that comes to mind is a bad reed. They don't need much of a chip in them and they don't seal good at low rpm.

 

[Idcatman3]

Plugged pilot jet was the first thing that came to mind for me too.

 

[Rixster]

Didn't even think of that. Will check it in the morning.

 

[snowmanx]

I had the same thing with my 1150, messed with it all season. Turned out the the idle adjustment screw fell out on the problem side and I did not notice it all.

It dropped the slide down on that side and flooded it out.

Just something to check.

 

[Rixster]

Found it, Carb boot was torn almost in half. I am shocked that I didn't burn it to the ground!!! The last ride was a 20+ mile road trip with the wife.

 

[Idcatman1]

Lucky guy! glad you found it without burning down. I have some stock carb boots if you need one.