Re: big problems with 225 hp 1986 evinrude
well we took out the vro to try that and now we mix oil and gas and we can see it going through and im not sure if its a spark problem or not. It seemed like we were getting low spark and sometimes not spark at all we took one spark plug off and then it fired up for a little and shut off.
You are going to need some tools to diagnose the problem
1) dva adapter fo rmultimeter. search for CDI DVA Adapter
2) multimeter
3) 5 or 6 color coded test leads that are male on one end and female on the other, and an added female spliced in...you can make them yourself if you have the amphenol ends...or you can buy them from some various websites...search for CDI test leads. The idea is, while engine running, test the various voltages coming from various components. An alternative is piercing probes that pierce the insulation to ge the voltage readings....but you need that DVA Adpater.
If the NO-OIL alarm is not sounding anymore and you don't have consistent spark. BTW you have to ground the spark plug that you are testing, you never want the electricity to stop at the plu wire with no wehre to go...you'll destroy one of the following components, Power Pack, timer base or stator. Always have a battery connected when running the engine, that will destroy the regulator.
without the dva adpater, you'll have trouble diagnosing the problem.
One last thing to try without having the tools, there is a shift interrupt switch under the air horn connected to the shift rod. Sometimes that gets stuck in the "plunged"/closed position, when that happens the starboard side powerpack is shut off...sometime no spark on starboard symptom is that switch.
Are you still using the vro pump for fuel? Did you disconnect the electronic plug at the VRO since you are using premix? You also have to plug the oil inlet to the pump or it will suck air and run lean.
PS no spark can be one of several things
1) power pack
2) timer base
3) stator
the problem is that after replacing the power pack, a bad stator can cook the power pack again. So you have to start at the stator. And check the magnets, they have to be evenly spaced to produce the proper voltage...loose magnets sometimes connect to the next magnet leaving a larger space on one side and no space on the other.
