Spare outboard - too many choices

[Alan de Enfield]

31 minutes ago, Tony Brooks said:

 

Mine was 8:1 ex factory but I bought a new needle for the carb that allowed it to run on 10:1. Still smoked though.

 

Older ones were 8:1 (or 10:1) , then they made some modifications to allow it to run very 'lean' at 25:1 (all othe 2-strokes of the time were at 50:1

 

When I was running one it cost more in oil (per hour) than it did in petrol.

[Jerry Rhum]

So just to make things more complicated, those of you that suggested not giving up on the MD1 just yet may be on to something.

 

A bit of 'percussive maintenance' managed to move this

 

to here

 

 

 

and a go with the wire brush cleaned this

 

 

up to this

 

 

I've got plenty of other things to work on first, but maybe getting the diesel engine working again could be a long term goal.

[rusty69]

10 minutes ago, Jerry Rhum said:

So just to make things more complicated, those of you that suggested not giving up on the MD1 just yet may be on to something.

 

A bit of 'percussive maintenance' managed to move this

 

to here

 

 

 

and a go with the wire brush cleaned this

 

 

up to this

 

 

I've got plenty of other things to work on first, but maybe getting the diesel engine working again could be a long term goal.

I think Tony said that black lever is the decompressor. So, the next step would be to try and turn the engine over manually to see if its seized.

[Tony Brooks]

41 minutes ago, rusty69 said:

I think Tony said that black lever is the decompressor. So, the next step would be to try and turn the engine over manually to see if its seized.

 

It is, but I think the OP has now set it to decompress, so if it was just compression preventing him turning it over before it might now turn, but I don't think it is likely.

[Jerry Rhum]

I think I am causing confusion because the picture is tilted to the right. I'm not sure why, but whenever I upload a photo the website sets it to landscape??

 

The lever was horizontal but is now vertical. I am going to download an MD1 manual and try and figure out what everything does.

[David Mack]

Looks as if the decompressor lever has been bent just below the black ball. Is that because it would have fouled the deck board above otherwise?

[Jerry Rhum]

I would guess so, there is not much space there.

It was like that when I got it

[Tony Brooks]

7 minutes ago, Jerry Rhum said:

I think I am causing confusion because the picture is tilted to the right. I'm not sure why, but whenever I upload a photo the website sets it to landscape??

 

The lever was horizontal but is now vertical. I am going to download an MD1 manual and try and figure out what everything does.

 

I will tell you what it is supposed to do. The lever is attached to a shaft across inside the rocker cover. There is an adjustable "ball" or pin fitted into this shaft so as you turn the lever to vertical the ball or pin pushes a valve slightly open so the engine can't compress the air enough to ignite the fuel.