E-rude 130hp Anyone know idle and/or WOT timing advance on '95 90degree V4 looper?

[sutor623]

Anyone know idle and/or WOT timing advance on '95 90degree V4 looper? E130TXAOR 130hp Still waiting on my factory manual.............. I need to set the timing on this girl. Taking her out tomorrow!

 

[sutor623]

It says 18 degrees BTDC on the intake manifold, but is that for WOT?

I know for WOT some people jump the neutral safety switch. My control box is built into the fiberglass so I will try and set my WOT with the boat backed into the lake on the trailer. Is this just insane?

 

[daselbee]

It says 18 degrees BTDC on the intake manifold, but is that for WOT?

I know for WOT some people jump the neutral safety switch. My control box is built into the fiberglass so I will try and set my WOT with the boat backed into the lake on the trailer. Is this just insane?

Sutor...take a break, and try to understand this a bit more.

First of all, neutral switch will have absolutely nothing to do with WOT timing. Zip, zero, nothing.
Secondly, 18* BTDC is correct for that engine for WOT timing.
Thirdly, the idle timing will be what it is when it is idling in gear on the water at 700-750rpm. If it is way off of 4* ATDC then something is wrong.

It really sorta scares me that you are somehow equating the neutral switch with WOT timing.
Pleae re-read and study what you are doing, understand it before you proceed.

 

[sutor623]

Well I was under the impression that the motor would not try to crank when it is Put in gear and the throttle position is changed. There is a switch that stops
The motor from trying to crank is that not correct

 

[racerone]

Fact ----the timing on these motor just does not go out of adjustment.------Empty the carburetors.-------Put muffs / water on the motor.-----Put in gear and full throttle while turning the prop,---Crank it over with a jumper wire on the solenoid.----Check the timing.----Do not adjust anything without being sure of what you are doing !!

 

[daselbee]

As both Racer and I said....be sure you understand what you are trying to do.
Yes, you cannot crank it when shift lever is not in neutral. Yes...given.
But that has nothing to do with WOT timing other than actually getting it started, I guess.

I will elaborate on racers' points:

Timing is set at factory, and usually does not need adjusting, UNLESS someone has effed with it.
It is good to double check.

Empty carbs...that is a precaution he takes to make sure no gas fumes/spray comes out the open spark plug holes while cranking.
Safety.

Put in gear....you should always turn the prop manually by hand to help the gearcase internals mesh properly if shifting with the motor OFF.

Crank over with jumper....this starts the ignition system, produces sparks, that you can use with a timing light to measure timing AT STARTER SPEED ONLY.
Remember, the engine will not start (no plugs), and the throttle is all the way advanced, so you will be measuring the WOT timing, but at starter speeds.
Not my favorite way to do it at all. There are better ways, I think. Not to mention that you have to disable QS which ahs not even been addressed yet.

Adjust as necessary. Self explanatory.

PM me if you want the easy way.....LOL.

 

[sutor623]

Alright thanks. I was not planning on messing with anything that didnt need it. I just have sunk quite a few dollars into this old girl getting her up and running from 5 years of sitting. Just want to dot my I's before I run her. I have worked on and timed plenty of outboards, just making sure I dont mess anything up. If I toast this motor Ill be off the water for at least a year. Im sure you guys understand.

Thanks again for all your support!!

 

[daselbee]

All right, I got a few PMs asking why I just didn't post the method here....I have posted it before, and in fact it is a well known technique.

This works on all motors, you just have to figure out ONE detail that might/will change between motors. It works on all CDI ignitions, but as always, there may be exceptions. If it don't work on yours...sorry.

This is very similar to Joe Reeves' method, except the engine is running, not just cranking at starter speed.
The benefits are, no 4* offset of the timing setting required, and QS, if equipped, does not need a disabling procedure.
The engine will be running.....so there is an element of danger...be very careful. Joe's method is safer.
This procedure ASSUMES that there is nothing else wrong with the engine.

Start engine, let run in tank or lake to warm up.
Stop engine. The following steps must be done with the engine warm.

Here is the detail that will change from motor to motor. Locate the most convenient place on the linkage to disconnect or separate the movement of the timer base from the rest of the linkage. There will be a place, but it varies from motor to motor. On yours, it will be the rod that runs from the idle timing adj tube to the timerbase.. It is located under the flywheel stbd side, and connects directly to the timerbase with a nylon snap keeper.
Disconnect that rod, and attach a 1' long straight coat hanger wire to the timerbase to use as a handle. Just hook it in the hole. You will see that you can now rotate the timerbase by pulling on the wire coat hanger, moving it back and forth with ease. You can pull it and see that it will eventually hit the rubber stop for it's WOT position. Push rod back and move timerbase to its near the idle rest position.

MAKE SURE YOU HAVE REMOTE IN NEUTRAL. CARBS MUST NEVER OPEN WHEN DOING THIS.
THE ENGINE WILL BE RUNNING SO USE EXTREME CARE.!!!!!!!

Set timing light up, place wire coat hanger in a safe place so it won't hit the flywheel, and start the engine. You may have to pull the wire coat hanger forward just a bit before the engine will start.
Adj wire hanger so it idles normally. Wait til QS drops out...maybe 10 seconds. Now you are ready to read WOT timing.

Slowly pull the wire hanger forward til the timerbase hits the WOT stop. The engine will race up, maybe to 2500 - 3000 rpm.
The engine is not making power tho, because remember...THE THROTTLES MUST BE CLOSED!!!!
It will race up, no need to worry, and when the timerbase hits the WOT stop, take your reading with the timing light.
If necessary, stop engine, and adj WOT stop to obtain specified timing for the engine you are working on. Yours is 18* BTDC.
Re-start engine and verify the proper timing setting has been achieved.

Once set, remove wire coat hanger, re-attach timing base link, and job done.

 

[sutor623]

Sounds legit to me.