97 Challenger weak spark

[MACHZ809]

Hey Folks, to those who started, maintain, and provide help and advice on this website...I salute you!!! Some of us could not afford to enjoy a Seadoo if we couldn't fix them ourselves. Anyway, New coil, wires, caps and plugs and still weak spark, starts and runs once in a while but only for a couple seconds, backfires out exhaust occasionally. Thanx for any help offered. Scott

 

[voodoo]

Check the rotary valve timing, have you been thru the fuel system already replacing grey lines and flushing out steel gas can trash?

 

[MACHZ809]

Just started going through the fuel system, filter had some crap but not a lot, seemed to fire only when I squirted fresh fuel down the carb throats but then nothing and plugs were soaked. Decided to drain fuel tank, purge lines and start fresh. Not sure what you mean by ( gray lines ). Also, I wondered about the rotary plate when it backfired, is it common for it to go out of time? Thanx for your advice.

 

[cholmes10957t]

have any luck? im having similar issues

 

[MACHZ809]

Yeah, replaced coil due to corrosion of stud inside where spark plug wire attaches. Spark got better but now I have a problem with back firing out of exhaust. Wondering if I spun the key on flywheel.