200 gt johnson flat bulb

stantheman

Cadet
Joined
Jun 26, 2007
Messages
6
I have a 200 gt johnson 1987 , I have to pump the fuel bulb every time i want to start the motor. Even if I just stop for 2 or 3 minets.If I dont pump it up It wont start.Sometimes I pump it and it still dies when I give it the gas and I have to repump it.Runs good once its on plane. Also starts surging at top end untill it dies. I have a new non oiling VRO I mix in the tank. All 6 carbs have been rebuilt ( did not replace floats). New fuel line and bulb, There are no fuel leaks. new plugs installed,compression is good, runs cool, This problem has stumped some good mechanics encluding my self. am concedering putting a pump in place of the bulb. Hope you can help
 

jtexas

Fleet Admiral
Joined
Oct 13, 2003
Messages
8,646
Re: 200 gt johnson flat bulb

Did you get the BRP brand bulb - the aftermarket brands don't have a good reputation.

Replace the fittings on the tank and on the engine.
 

fireman57

Captain
Joined
Aug 24, 2004
Messages
3,811
Re: 200 gt johnson flat bulb

jtexas is spot on. Sounds like you are pulling air from a bad fitting in an aftermarket line. If you know someone who has another tank try it and see if that fixes your problem.
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: 200 gt johnson flat bulb

DOUBLE POST, let this one die.
 
Top