2004 Ultra 150 plug fouling

[Big E]

Hello, I have a 2004 Ultra 150, which runs great for a few hours then starts cutting out. I replace the plugs and I'm good. The compression is good in all 3 cylinders, but I seem to be fouling the number 1 plug! The two back plugs are very clean, with no oil but the front one seem a little oily.
I'm not a power rider. I'm using NGK BR9ES plugs.
Should I go just go to a hotter plug in the #1 cylinder?
Any help would be appreciated!

[Technical Support]

Re: 2004 Ultra 150 plug fouling

No, dont use a hotter plug. Your oil injection nipple for that cylinder might be stuck open, pull the oil line off it and blow air through the brass nipple. It shouhld hold slight resistance then open up,if there is no resistance then replace the fitting.