Broken fuel tap on Mariner 4 two-stroke outboard

[frderek]

My fuel-tap knob no longer works, it moves but doesn't turn the linkage-rod that goes back to the actual tap. The tap itself works fine if I take the cover off and turn it. My problem is that I can't see an obvious way to dismantle and inspect it and I don't want to risk breaking it . Can anyone advise, please?

 

[VicS]

Exploded parts diagram at http://www.boats.net/parts/search/Merc2/Mariner/4A/6E0-001011 AND UP/COWLING/parts.html might give you some ideas and enable you to identify the broken part.

Quote the serial number and HP when you order parts.

(and when asking for advice on the forums)

 

[frderek]

Many thanks for the diagram and link. It seems that what I need is obsolete and if it were not that site can't export outside USA. The diagram will help me investigate but I suspect the solution will probably Araldite!

 

[VicS]

Many thanks for the diagram and link. It seems that what I need is obsolete and if it were not that site can't export outside USA. The diagram will help me investigate but I suspect the solution will probably Araldite!

Yes theres some reason why parts cannot be exported from the USA. Just a restriction placed on agents by Merc / Mariner AFAIK

I think you will find that model is a rebadged Yamaha http://www.boats.net/parts/search/Yamaha/Outboard/1984/4SN/COWLING FUEL/parts.html

Either way armed with the part numbers you may find that a UK agent for Mariner or Yamaha can help you. Or even a CI agent ?

 

[Seajet]

Ron Hale Marine at Portsmouth would be worth a try, they used to sell and almost certainly still do service quite a lot of these engines ( as VicS says a rebadged very slightly tweaked Yamaha ).

 

[frderek]

Yes theres some reason why parts cannot be exported from the USA. Just a restriction placed on agents by Merc / Mariner AFAIK

I think you will find that model is a rebadged Yamaha http://www.boats.net/parts/search/Yamaha/Outboard/1984/4SN/COWLING FUEL/parts.html

Either way armed with the part numbers you may find that a UK agent for Mariner or Yamaha can help you. Or even a CI agent ?

That's a GREAT help, thanks as the Yamaha parts are still available and yes, I'll be able to get them locally, once I've stripped it out and found what's broken

 

[frderek]

Yes theres some reason why parts cannot be exported from the USA. Just a restriction placed on agents by Merc / Mariner AFAIK

I think you will find that model is a rebadged Yamaha http://www.boats.net/parts/search/Yamaha/Outboard/1984/4SN/COWLING FUEL/parts.html

Either way armed with the part numbers you may find that a UK agent for Mariner or Yamaha can help you. Or even a CI agent ?

That's a GREAT help, thanks as the Yamaha parts are still available and yes, I'll be able to get them locally, once I've stripped it out and found what's broken

 

[Paddingtonbear]

I don't know to which part you refer but I had a problem with the pump on my 2 stroke a/c Yam and a local machine shop, the ever wonderful Jon Street, made me a bit for a fiver. Good luck

 

[ProDave]

I suspect there is just a grub screw in the knob that pinches on a flat on the shaft Have a good look around the knob for a small hole to insert an allen key?