1989 Evinrude 200 not reaching W.O.T. after 20" conversion

[mrichartz]

Ok that sounds easy enough.

Been trying to back track today and determine what I could have done to alter the timing. Would replacing the flywheel do it? The one I am running now is not the original, it is off of the same model though.

I wasn't really pleased with how freely the timer base was moving this evening, seems like it might be sticking, so I am going to dig a little deeper into that as well.

Anytime you change a timing base you should check the timing

[powerabout]

Ok that sounds easy enough.

Been trying to back track today and determine what I could have done to alter the timing. Would replacing the flywheel do it? The one I am running now is not the original, it is off of the same model though.

I wasn't really pleased with how freely the timer base was moving this evening, seems like it might be sticking, so I am going to dig a little deeper into that as well.

Flywheel got lots to do with timing, there is a diagram on CDI web site showing where the hub should be, they can slip.
twin pack flywheel different than single pack re the timing hub
Which ignition system do you have?
Flywheel and timer base need to be used as a pair for these versions

[mrichartz]

You said it wasn't revving up before you switched the flywheel..correct?

[jaymalyon]

Better to ask three times then ruin something
No not really a way to check on the hose...
Except.. but this really isn't accurate take plugs out push the throttle all the way up then crank motor over see what timing light shows..should be around 14* btdc

No wot can't be done on the hose or at idle
It can be timed perfect at idle and be out at wot

There are two timing stops, idle is the one on the starter side which you can check idle..but you said it's idling fine 900 out of gear and 600 in gear +-?
The stop on the other side is wot make sure it's hitting that stop

Ok what you could try is warm the motor up then take the rubber cap off wot stop put in gear and take off see if that changes anything BUT don't run it long just a quick

Haha that's what I was looking for.

Yes, idle seems to be fine, a tad high if anything.

Sorry for all the questions, timing these strange animals has always been a mystery to me. Just looking for a test to fail before I proceed further. I'm feeling as though we are on to something though...

[jaymalyon]

Flywheel got lots to do with timing, there is a diagram on CDI web site showing where the hub should be, they can slip.
twin pack flywheel different than single pack re the timing hub
Which ignition system do you have?
Flywheel and timer base need to be used as a pair for these versions

35 amp and single power pack. I have a picture of both flywheels side by side, they are identical. I'll see if I can find it.

[jaymalyon]

You said it wasn't revving up before you switched the flywheel..correct?

Correct. The flywheel magnets broke loose with the 25" midsection and I changed everything after. Didn't run it again until after the swap.

[jaymalyon]

[powerabout]

35 amp and single power pack. I have a picture of both flywheels side by side, they are identical. I'll see if I can find it.

look for the gap in the stainless ring on the hub, with the key at 12:00 one split should be 2:30, other almost at 7.00
put a marker pen mark at key and the splits and post a photo

[jaymalyon]

look for the gap in the stainless ring on the hub, with the key at 12:00 one split should be 2:30, other almost at 7.00
put a marker pen mark at key and the splits and post a photo

Pulled the flywheel and oddly enough, it looks someone has already made the marks in those locations. I bought this flywheel from a junkyard so who knows the history.
Attachment 435862

Attachment 435864

I see the gaps you are talking about in the stainless ring. I noticed they are full of metal debris. Possible the magnet picked it up from when the magnets in the last flywheel came apart. Would that cause a timing issue?
Attachment 435863


Took a closer look at the spark advance tube and pulled it apart. Full of gunk and some weird dust. Cleaned it up and greased the hell out of it. Seems to be moving freely now. It has to make a difference.

[powerabout]

photo links not working

[FMP]

With the wheel off and moving the throttle to full advance did it reach the stop?

[jaymalyon]

[jaymalyon]

"With the wheel off and moving the throttle to full advance did it reach the stop?"

Yes. But before I pulled it apart and cleaned it, it was sticking and not exactly moving freely.

[powerabout]

"With the wheel off and moving the throttle to full advance did it reach the stop?"

Yes. But before I pulled it apart and cleaned it, it was sticking and not exactly moving freely.

you might have solved it

[jaymalyon]

On the water now. Checked timing as wide open as I could (still 3900) and the pointer is on 20 degrees on the starboard side of the scale. I know I'm looking for 18 degrees but the only mark I can see is on the port side of the scale on the flywheel. Is it possible my timing is that off? Seems like a hell of an adjustment.