70hp force fuel pump

chadparsons

Recruit
Joined
Nov 26, 2014
Messages
1
I bought a Jason 1570 FS came with a 70HP Force outboard the last owner ran a tank of ethlonal fuel and it started having carb problems. I bought a new carb put it on. It started right up then fuel started coming out of the carb. The fuel pump is pushing to much fuel pressure to the carb. To test this I put the fuel in a gas can and gravity fed the fuel to the carb and it ran good. I still need to set the new carb so do I need to rebuild the fuel pump or do I need to check some thing else on motor. I have a shop manual but would like to find an owners manual so if you can help thank you.
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,665
Fuel pump cannot push too much fuel.
Problem is in the carb.
 

foodfisher

Captain
Joined
Feb 18, 2009
Messages
3,756
Ethanol is known to deterioate(sp) fuel line internals. Probably some debris fouling the needle/seat connection.
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
17,926
Walmart, auto section, fuel filter G2 or G3 or G12
Install before the pump.
Clean the carb.

When you have the carb off look inside at the reeds for broken, missing or bent reeds.
They can have a small opening .010 or so but not much more.

Set the air screw at 1 and 1/8th turn for initial adjustment.
 
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