Recent content by jcoop86

I've had 2 brand new sets of ngk in there and runs like crap even though I know that's the best plugs for it, but I pop those resistor champions in there and it runs pretty good. I'm just banging my head against the wall trying to figure out why that's the case, bad plug caps? Bad wires? Or are...

Looking for advice on my 1981 cb750f, I have been trying to chase down a running issue for a couple weeks, low power, backfiring, slow rpm pickup. The other day I accidentally got ahold of the champion resistor spark plugs not knowing they were resistors and put them in, weird thing is that it...

Haven't done valves or compression yet, #2 plug is dark but not wet or terrible build up. #1 3 &4 are very light so keep thinking lean. Will do the valve clearances and compression check asap

Needing some help here, I have an 81 750f I picked up in a trade. I have been trying to get the motor squared away before I really tear into it over the winter. Here's what I've done so far. New rectifier has it charging great 14.7 at 5k. New carb boot and no vacuum leaks to be found. It does...

Hey guys, I just picked up and 81 750f and I am having some running issues. I have a knock from the lower left of the crankcase at idle but goes away completely after 1500-2000 rpm, also my #1 exhaust pipe is getting heat coloring and I'm getting an exhaust backfire from either #3 or #4. There...