carb kit fix it?

[Krazo]

trying to help my neighbor out.  He just got a 2008 mercury 3.5 hp, model f3.5m i think.  motor sat with fuel in it for years before he got it.  he cleaned up, checked all the lines, etc. 

now the problem is it runs when you start it with starting fluid but dies quickly.  I think the carb is gummed up, maybe float is stuck.  any other thoughts? 

however im trying to find a carb kit for this motor and didnt see anything in the sierra marine catalog.  im not familiar with mercury motors, can anyone recommend a good website with manuals or schematics, part information?  Im just trying to find a carb kit for this thing but i cant seem to find what carb it has.

All I seem to find is a carb for 4hp but nothing smaller.  is this the carb they use for everything under 4hp?  #803819A05

 

https://www.crowleymarine.com/parts/371186.cfm

[fishinwrench]

Serial # ?

[fishinwrench]

As usual with Mercury, the carb is NLA and so are many of the carb components (jets, screws, float, ect) so don't drop or break anything or the whole motor will be scrap. 

They don't offer a "kit" but a bowl gasket and needle valve can still be bought (quite expensive).

http://www.marineengine.com/parts/mercury-outboard-parts/35/64223740-and-below-m/carburetor

[Krazo]

serial is OR257977

Thanks for the link. Using that site I found a 'kit' for $85.  way too much.  may just take it apart and try to clean it up without replacing anything.  

another thing, any ideas for a cowingl gasket?  mercury wants $100+ for a new one.  

[fishinwrench]

If you can show me the cross-section of the cowling gasket I may have a strip of it that can be cut to size from the cowling graveyard.