81 Evinrude 25 HP - No fuel to bottom cylinder

[AlTn]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

doesn't the CDI site state it takes a min. of 250 rpm to fire the pack?..if your starter can achieve that with the plugs in you should be good to go

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

doesn't the CDI site state it takes a min. of 250 rpm to fire the pack?..if your starter can achieve that with the plugs in you should be good to go

I should hope so. It's going to have to achieve those rpm's once the ignition parts have been replaced to utilize the electric start feature. I'm sure it does though, cause before I broke the motor down, it started the day I bought it via the start button.

 

[jasper60103]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Here's a random question as I'm waiting on the ignition parts to come in. Can you do the spark test with the plugs in. That is to say, the gap testers would be plugged in to the plug wires and grounded to the block, but leave the plugs in. I ask because the other day when I did my spark test, I put a little fuel in the cylinders via the spark plug holes, and when I did the spark test, all it did was spit the fuel back out the plug holes.

There are inline spark testers...

How To Use A Spark Tester - YouTube

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Still waiting on my ignition parts to come in, they should be here today. As I'm waiting I'm still concerned that my WOT advance timng will be off, because at WOT position the cam on the armature plate is not hitting the advance adjustment screw. I've read this Joe Reeves procedure, but I'm not entirely sure I follow. Could someone spell it out for me?

 

[jasper60103]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Still waiting on my ignition parts to come in, they should be here today. As I'm waiting I'm still concerned that my WOT advance timng will be off, because at WOT position the cam on the armature plate is not hitting the advance adjustment screw. I've read this Joe Reeves procedure, but I'm not entirely sure I follow. Could someone spell it out for me?

Are you in forward gear?

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Are you in forward gear?

I'll have to double check, but I believe so. Shifted to forward gear and the throttle arm twisted to WOT, the armature cam does not quite hit the advance stop screw. The throttle can be twisted to make the cam touch the screw, but that puts the throttle indicator beyond the fast position on the slow - facst indicator on the tiller handle. Not sure if that matters. I suppose I just thought that WOT should be achieved once the indicator on the tiller handle is at "fast". Let me know if that makes since. I can take pictures this evening to visualize what Im saying here.

 

[jasper60103]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

I'll have to double check, but I believe so. Shifted to forward gear and the throttle arm twisted to WOT, the armature cam does not quite hit the advance stop screw. The throttle can be twisted to make the cam touch the screw, but that puts the throttle indicator beyond the fast position on the slow - facst indicator on the tiller handle. Not sure if that matters. I suppose I just thought that WOT should be achieved once the indicator on the tiller handle is at "fast". Let me know if that makes since. I can take pictures this evening to visualize what Im saying here.

As I recall it won't touch unless the engine is running, but it should be fairly close. You will have to strap it to the bumper as Joe's procedure states.

 

[Bosunsmate]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Dont get to bothered by the marks on the tiller handle as you dont look at that when you a moving along you go by fele ie full throttle is when you feel the handle stop twisting.
After all these questions and views you a going to have to post some video for everyone once you have it going!

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

After all these questions and views you a going to have to post some video for everyone once you have it going!

Most deffinately. I won't leave everybody hanging. Haha.

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Are you in forward gear?

Come to think of it, in order to do the Joe Reeves timing method, with out the motor running, the motor can't be in forward gear, as it won't start due to the neutral start switch. Do I disingage this and then go through the advance timing procedure. I noticed the other day if I switch the connector to the opposite pole it will turn over in the forward gear. See sketch below explaining what I'm saying here.

 

[jasper60103]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Come to think of it, in order to do the Joe Reeves timing method, with out the motor running, the motor can't be in forward gear, as it won't start due to the neutral start switch. Do I disingage this and then go through the advance timing procedure. I noticed the other day if I switch the connector to the opposite pole it will turn over in the forward gear. See sketch below explaining what I'm saying here.

View attachment 218072

Yes, that is correct. You will have to bypass the neutral safety switch for this procedure.

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

I got my ignition parts today, and picked up a timing light. So I'll get them installed tonight and we'll see what happens. Wish me luck. Haha.

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Grrr. I put on the new ignition parts last night; new power pack, charge coil, and sensor assembly, and I'm still not getting any spark. I followed the manual and CDI procedure to make sure the wires were placed in the correct location on the pig tail connector. So I feel pretty certain that the wires are located correctly. The only thing I haven't changed, with regards to the ignition system, is the plug wires, which appear to be in pretty good shape, but I'll change those as well. My start battery was at 62% so I'm charging to full, just incase that wasn't enough juice to crank the motor at the minimum rpm for the power pack to fire. Every component of the ignition system, less the plug wires, is brand new, so I'm at a loss here fellas. Any thoughts?

Im gonna do a spark test on my mariner 9.9hp and see if I get results, because I know that motor has spark, as it runs like a champ.

 

[orbanp]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

See photos below of the remainder of the re-build thus far.

View attachment 217224View attachment 217221View attachment 217222View attachment 217223

Sorry to come in that late with such a question, but I was not paying attention to this thread previously...

In the pictures above, the ring ends are not supposed to go across cylinder openings.

Was the conrod attached to the crankshaft, or the pistons just pushed into the cylinders and aligned to check if the locating pins and ring ends are seated properly?

Thanks, Peter

 

[Bosunsmate]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Check spark plugs, check the grounds- especially from power pack, disconnect the kill wire.
Is the stator new?

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Sorry to come in that late with such a question, but I was not paying attention to this thread previously...

In the pictures above, the ring ends are not supposed to go across cylinder openings.

Was the conrod attached to the crankshaft, or the pistons just pushed into the cylinders and aligned to check if the locating pins and ring ends are seated properly?

Thanks, Peter

Those photos were taken before connecting to the rods, and like you say, just to verify that the rings were seated properly in the piston grooves.

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Check spark plugs, check the grounds- especially from power pack, disconnect the kill wire.
Is the stator new?

The spark plugs are brand new, Champion L77JC4's gapped at 0.030 per the manual. I checked the ground a few days ago before I put the new power pack and it was 0.2 ohms on both coil ground straps. What other ground is there to check. I also, disconnected the kill switch ground strap and still no spark. Also, there is not stater on this motor, just the charge coil and sensor assebmly. This motor is an E25RCIM, so from my research I've determined that the electric start was added on sometime after the motor was originally perchased.

How can I verify that the starter is turning the flywheel at the proper rpms to trigger the power pack?

 

[Bosunsmate]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Grounds on the coils and powerpack?
Pull the plugs out and ground them to a bolt and you should get a very quick rpm to check for spark

 

[Bosunsmate]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

my last evinrude 35 (very similar to yours) would spark to life even when it looked and sounded like it had a virtually dead battery cranking it. If it seems to spin somewhat ok it should be more than enough for a spark.

 

[cchildr84]

Re: 81 Evinrude 25 HP - No fuel to bottom cylinder

Ok, so hears a question, I put some di-electric grease on the connector pins for the charge coil and sensor assembly to assist with putting them in the rubber pig tail connector and then put the same di-electric grease on the end of the power pack connector. That wouldn't cause an issue would it. I wouldn't think so since that stuff is made to go on electrical connections.

Also, does it matter what coil ground strap the kill switch is grounded to. Currenlty I have the kill switch grounded to the lower coil ground strap.