Well I recently had a cracked piston so we changed it and got everything back together, but my #4 cylinder is missing. Compression is good in all cylinders, the spark plug wire is sending spark, any else to look at. Im going to go buy the noid(pulse injector tester) today and see what happens, the injectors was just bought like 2 years ago(rc 440cc), anything else I should look into????

 

Make sure the injector is functioning and the plug is good. Inspect your rotor while you're at it.

 

well i tested the pulse and the injector is getting signal and spark plug is new, you think my injector is plugged how do i unplug it, there 2 years old only hard to believe its plugged. Any suggestions?

 

 

ANYONE TO HELP
Compression is Good
Spark Plug is New and Gapped
Injector has signal
Swapped Injector with another Same thing(Injector is NOT Plugged)
Ignition Wire Is sending Spark
Engine is MISSING!!!!!

 

has to be those evil gnomes.......

 

Bad FI relay?

 

Well this is really fuked up, turns out my exhaust valves not closing , needs a valve job. Guess what the head gotta come off again Next time dont beat around the bush valve job is a must, air comes out my exhaust when i blow the air.

 

how did you figure out that your exh. valve is not closing?

 

leak down test im assuming.