90hp johnson won't start

[dsujen]

I have a johnson 90hp model J90TLCUR with the vro oil tank and pump. I'm not sure of the year. I bought it used from a guy that couldn't run it for me. Tried to get it running today. I checked compression and it was 115,135,125,110. I don't have the controls connected other than the wire harness. I disconnected fuel line that goes into the carb and hooked up 50:1 with a primer bulb, fuel filter and 6 gallon tank. I disconnected the crankcase hose to the pump and left the hose end open. The motor cranks but will not start. I pulled each spark plug and hooked to the spark plug wire and grounded the plugs and cranked motor. Had bright blue spark on all. I sprayed fuel directly into the carb venturi with the flaps open a little and

 

[boobie]

I'm just boing a test.

 

[dsujen]

the post got cut off. It continues flaps open a little and a lot with no start. What's wrong?

 

[emdsapmgr]

When starting, it's important that you are able to choke the engine. You did not mention that. That engine is a bear to start without a choke. Also, It's typical that the warm-up lever is raised on the control box in order to provide more fuel, air during the start cycle. Since you have no control box, you can't do this.

 

[dsujen]

I sprayed fuel directly into the carburator throats and not even a hint of it trying to run

 

[BonairII]

Is it possible that timing is off? Sheared flywheel key maybe?

 

[kenmyfam]

Sure you got spark ??? Will it jump a good gap with a spark tester ??

 

[dsujen]

It has bright blue/white spark on all plugs when tested outside the cylinders. Could the choke lines have anything to do with it? Do I need to plug any thing up to get the carbs to suck the fuel in? The spark plugs didn't appear wet. Could the reeds be stuck?

 

[Roberthill]

Take spark plugs out spray some mixed fuel into cylinders replace plugs , try starting .

 

[boobie]

Testing spark on the plugs means nothing. It has to jump a 7/16" open air gap on a spark tester.

 

[dsujen]

I solved the problem. I choked it with the key choke and it fired up instantly. Spraying fuel directly into th

 

[dsujen]

I solved the problem. I choked it with the key choke and it fired up instantly. Spraying fuel directly into the carbs does not work