Strange misfire problem

[Brownie Mobile]

Well, lets start with the fact that i still need to do a duraspark swap on my B2( haven't been able to find one, if anyone has one that would be great PM me) So when my rigs cold it tends to misfire and be overall sluggish which i would expect from an older carbed vehicle like mine, except the misfire, i don't get it. It will misfire until its at operating temp, then it fires on all cylinders like nothing ever happened ( i still get shitty gas mileage and run incredibly rich at op temp and cold temp) Any ideas? i know the duraspark swap would be the first place to turn to, but everyone has the opposite problems from what I've read, runs fine when cold then after it gets too hot it tends to run rich and sometimes misfire when the ignition module gets too hot. I think it could be something else, but i'm no mechanic, thanks.

 

[Brandon Nootenboom]

I know a carbed 318 is different than a B2 engine but I have the same problem with the rich cold/rich hot, I tore into the carb and found the jets were plugged along with the float sticking, cleaned them and put it back together. It made it a lot better but didn't completely cure the problem. Maybe that'll help you too?

 

[kimcrwbr1]

Stop messing with the TFI ignition on a carbed engine you will never get it right period. Otherwise your better off pulling the top off filling it with dirt and make a planter out of it. Change the valve guide seals block off the egr and d-spark it and bring it back to life.