1984 Johnson 115 Wonbt stay running at idle

"I have a 1984 Johnson 115 hp

"I have a 1984 Johnson 115 hp crossflow V4 that runs strong at speed, accelerates without hesitation, BUT refuses to idle either in gear or in neutral for more than about 10-15 seconds. After it dies, it usually requires the warm up lever and choke to get it going again. This is annoying for pulling a skier/wakeboarder, and challenging for docking.

I have noted that if the engine is tilted up beyond the trim range but with the lower unit still in the water, it idles a bit better/longer, but will almost certainly die when tilted back down.

The throttle plate and cam appear to be properly aligned. Also VRO long since disconnected and removed; this motor is burning 50:1."

check clean and rebuild the ca

check clean and rebuild the carbs making sure to clean all the jets really good any jets still cloged can cause the same probem over again. most likely a low speed jet clogged.

"I'm having the same probl

"I'm having the same problem. Where are the jets?
Are they the small screw in orifices, that have a hole the size of a pinhead?"

yes when you remove the bowl y

yes when you remove the bowl you will generally see them. take a small piece of wire to clean it.