carb issues 1986 45 hp

gride830

Cadet
Joined
Apr 19, 2009
Messages
13
Just bought a 86 tracker from an older gentleman who gave up fishing many years ago....boat has sat almost 4 or 5 years, but was extremely well cared for before the storage....has a mercury 45hp classic fifty and around a 1990 evinrude 9.9 kicker as well....after replacing starter, some wiring, spark plugs, fuel lines, fuel filter, and lubing the cylinders i thought it might be ready to attach a battery and try to start the motor....i attached the gas and starting pumping up the pressure ball....it did get solid but i stopped when i saw a stream of gas coming from the lower carb. i attached a pic
http://www2.snapfish.com/slideshow/.../otsc=SHR/otsi=SPIClink/COBRAND_NAME=snapfish
gas was shooting from the drilled out brass screw shown at the 2 o'clock position every time i pumped the ball only on the lower carb....so that is as far as i have gotten on this project....is there an intake piece that bolts to this side of the carb to keep that from happening.....cause what i took a pic of is all that was there.....no air filter?...i bought a book for merc motors seloc or heloc or something like that, and it is absolutely worthless for the carb....
the mix needle isnt wore, and it looks as if the carbs were rebuilt probably before it was stored but there was some 5 year old gas still in the system so im not sure if i should rebuild them....
any advice on what to do next would be great, john
 

This_lil_fishy

Master Chief Petty Officer
Joined
Jul 23, 2008
Messages
841
Re: carb issues 1986 45 hp

Floats are stuck or not floating, also the needles may not be seating properly. You'll have to replace both if that is the case.

*Note: Replace foam floats even if they look good, replace rubber tipped needles even if they look good.

Ian
 

gride830

Cadet
Joined
Apr 19, 2009
Messages
13
Re: carb issues 1986 45 hp

the needles had no plastic or rubber on them.....most rebuild kits only have gaskets....would i need to order floats separately?..where can i find an exploded diagram of my carbs....the book i purchased wasnt even the correct diagram even though it said that it was.
 

This_lil_fishy

Master Chief Petty Officer
Joined
Jul 23, 2008
Messages
841
Re: carb issues 1986 45 hp

There is another kit with the floats, but you can purchase them seperately. Of note, mine came with a new needle and seat. Be aware that you have to order 2 floats (1 for each carb) for some reason these don't come in sets of two. I hate those service manuals, they try to cover as many motors as possible in one book. Some day I will get the actual merc manual for my motor...some day!

Ian
 
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