one gallon of gasoline 2.6 OZ of the 50-1 ratio ..
Wow, I only asked again for everyone seems to have a diffrent value. I am sorry if you are tired of my trivial questions, but I have come a long way by asking instead of assuming.
That is awesome, thank you for all the great info and explaining it. I will work on it tomorrow . Today I was working on the 9,9 but I need a carb kit so it’s on hold . Back to my Johnson & Evinrude 1974 25 hp motors.
i did, it does spit fuel in a good flow. i even took it off and ran it with out fuel pump, but it runs and then dies. so i have to start over and double check. i did something wrong, just have to look at it again with fresh eyes.see info ...
read 3 times...then proceed to rebuilding
why not just disconnect at the carb...spin the engine to see if pump is or is not pumping out fuel
funny youmention that. the tank i had was not venting. it was building up with pressure could see the tank bulging (plastic) so i ripped the little device out and fixed the issue so it will vent on its own now. the other thing is, since i did that the issues started to show up more. so i think the tank being under pressure, was forcing fuel to the motors, after the tank fix another issue came up. no fuel going to the carb bulbs or atleast replenishing it. so i did some reserach as i was told in the past from this board . i found out the fuel system is a closed system so if i end up with the primer bulb being soft and the carb has no gas init, i open the nut on the bottom of carb no gas. i can squeeze the primer bulb and gas will go to the carb no issues. so time to do more testing. the one way valve on primer bulb is not seeting properly, allowing gas to leave. fuel line at connections is leaking allowing air to get sucked into the system. hence causing the issue at hand no fuel. air is the problem getting into the fuel line system. so i orderd new connectors for the tank and motor, primer bulb. also will pick up 5/16 ID fuel line from Advanced auto. after that is replaced i will write how it worked out for me.i did, it does spit fuel in a good flow. looks like it is working OK
better to look for another cause.
hook up a small fuel supply directly above & into the carb inlet nipple and see if the engine runs with the new source of fuel.
if it does not then the problem is between the carb inlet and the spark plugs
if it runs ok... then the problem is between the pump outlet hose and the "vented" fuel tank
Walmart also has their own brand of lower unit oil which is what I use often. I think 50-1 is like 2.6? Ounce per gallon. Do yourself a favor and get a mix ratio bottle or cup. No guessing of bottle measure lines that are not that accurate. If your eyeballing use 3 oz per gallon to get close to 50-1. It's like a pint for 6 gallons I believe. Most bottles will tell you on them for like 3, 6,9, 12 gallons
You can have a bad primer ball and it causes all kinds of weird issues.
I should correct my self. So from what I have read and looked up the fuel pumps that are on theses types of motors only use the pulse fromi did, it does spit fuel in a good flow. looks like it is working OK
better to look for another cause.
hook up a small fuel supply directly above & into the carb inlet nipple and see if the engine runs with the new source of fuel.
if it does not then the problem is between the carb inlet and the spark plugs
if it runs ok... then the problem is between the pump outlet hose and the "vented" fuel tank
Well the suction comes from those pulses from crankcase pressure. The is not enough suction of fuel to draw the fuel up say if there was no fuel pump?
i watched some videos to see about the suction or pressure depends on how you look at it, but most say 1lb, the problem is unless you hook a gage to the line and add a T so fuel can still go to motor when running. you wont feel it if you put your finger over the hole? so out of the three motors i have, none of them create enough that i can feel. then again old cracky fingers from being a worker. but seriously is there any other way to tell on the pulse ?
