Timing?? Installed new throttle cable in 85hp '74 Johnson 85- now won't start.

kippstakes

Petty Officer 2nd Class
Joined
Jun 10, 2013
Messages
117
So I think I might have gummed up the timing on my motor, or maybe the idle throttle- I don't know.
Three days ago she started up without any trouble, and ran like a top. Compression is perfect, solid spark on all four.
What happened was I was having trouble getting the throttle up to wide open- the control lever seemed to bottom out around 1/3 throttle. I tried compensating by adjusting the throttle at the throttle cam (which I now realize was a mistake). Turns out, after splitting the control box, my throttle cable was just binding. Luckily I had a replacement on hand, which fixed the binding problem once installed.
HOWEVER, when I went to start her up today, it would only occasionally sputter a bit and then die, and barely that. I must have screwed something up with the timing or the start position on the cam. I've scoured the manual and haven't found much that helps.
Any ideas??

Here's a vid for reference.

https://www.youtube.com/watch?v=XIQaFVokcaM&list=UU0jctJHS9XUUN0vprdIfwUA&index=1


Thanks!
 

emdsapmgr

Supreme Mariner
Joined
Dec 9, 2005
Messages
11,551
You should perform a sync and link procedure on the engine. At dead idle, you should be able to slip a pc of paper between the carb roller and the throttle cam plate. If you lift the cold start lever on the control box, the cam should move forward slightly, engaging the carb roller, opening the carb butterflys slightly. It's diagrammed and explained well in the factory service manual. Also has pictures. If you are not working from a factory manual, it may not be specific enough to do this procedure. Is the choke solenoid activating the carb choke plates when you push in on the key?
 

kippstakes

Petty Officer 2nd Class
Joined
Jun 10, 2013
Messages
117
The choke solenoid is activating. Sounds like my carb roller might be set a bit too far forward, it is putting pressure on the cam plate, pushing it slightly. I will adjust it back and see what happens.
Thanks!
 

kippstakes

Petty Officer 2nd Class
Joined
Jun 10, 2013
Messages
117
Update. I adjusted the throttle back a bit til a hair of space was made bt the cam plate and roller. It started, after some cranking, but seems to run a little rough. Then again maybe I'm just hearing things that aren't there. It's still concerning that it started so hard to begin with. I don't think I altered the timing- from the research I've done I don't think timing can be adjusted from what I've been doing. Strange.
 
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