95 115 Merc problem Please Help!

Billy Barnes

Recruit
Joined
Apr 6, 2008
Messages
2
Just bought. Cranks fine, runs fine for 30mins or so, then without warning will not generate enough rpm to plane. Primer bulb seems slack but if you pump it while running engine dies and is hard to restart. Noticed some raw gas coming out of exhaust too. Any thoughts?
 

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: 95 115 Merc problem Please Help!

Just bought. Cranks fine, runs fine for 30mins or so, then without warning will not generate enough rpm to plane. Primer bulb seems slack but if you pump it while running engine dies and is hard to restart. Noticed some raw gas coming out of exhaust too. Any thoughts?


Primer bulb will normally be soft when running. It just shouldn't collapse.

If you pump up the primer before start, and then give it a firm grip, not quite white knuckle, does gas leak out of the carbs. Could be they need cleaning and/or needle and seat or float attention.

If it's missing electrically, and you're talking a real strong squeeze on the bulb, the killin' might be normal.

Could also be a leaky diaphragm in the fuel pump.

hope it helps
John
 

Laddies

Banned
Joined
Sep 10, 2004
Messages
12,218
Re: 95 115 Merc problem Please Help!

Either you have a carb flooding or one side of the switch box is breaking down you need to ck. all cyl. for spark when it's acting up
 

j_martin

Admiral
Joined
Sep 22, 2006
Messages
7,474
Re: 95 115 Merc problem Please Help!

How many times you gonna ask the same question?
 
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