Recent content by justinduke

Thanks for the help guys. I drilled it out one size at a time until I got it to 110 and I believe it's not running lean anymore. Been cleaning the plug each time but I'm just going to put a new plug in and run it again just to make sure. Problem is that it is still low on power. It has less...

Yeah I put it under a heavy load for the full 30 seconds.

Just checked the plug again. Warmed it up for a few min under medium load then gave it full throttle for 30 seconds straight and the plug still looks clean and lean. I would like to buy new jets so that I have a backup set in case I decide I want to drill them out. What sizes should I try? I'm...

Thanks guys. I will redo the plug read tomorrow. If the plug still shows it's running lean how would I determine what size jet I would need to go to? I found some honda GX390 jets on boats.net. Are these interchangeable on the duromax?

I will redo the plug reading and run it closer to full throttle. Somebody I was recently talking to said the plug won't show an accurate reading unless you add octane booster. This didn't sound right to me. Anybody heard this before? Are there any similar motors that use the same jet as this...

I have a new 16hp duromax that is running lean. Is there any way to adjust the fuel mixture on the carb? The only thing I can find is the idle screw. Might have to rejet I guess? If so, where can I buy jets for this engine? And just to double check my method for reading the plug I ran the motor...