Fuel and oil lines

[rondon]

Just picked up a Rockwell JLO motor and am planning on putting it in a go kart. Motor and clutches is what i have. All the lines to the carb were rotted away. Was told the motor only had a 100 miles on it before it was pulled from the sled. He wasnt sure what type of sled it came from. Need to know how to run the lines from the carb intake that are labeled primer on other sites and if i need a seperate oil cannister and primer for this motor. Motor is tagged as a 2f440-4 and am not finding anything on that designation. If anyone has a pic they could link to me to troubleshoot it would be appreciated. and if its just premixed or not

[scorp11]

you'll need to premix the oil and gas. 40 to 1 is a safe starting point.

Don't know what carb you have on it without seeing a pic. That will dictate how the fuel lines get run.

It is likely there will be a primer nipple on each side of the intake. One for each cylinder. That is what the primer will need to connect to.

Get us a pic of the carb and we'll be able to help you with the plumbing.

[rondon]

It is a warlbro carb. Has one side inlet and two inlets on the bottom. I know where the side one goes and i think the middle one on the bottom is the fuel inlet. I am trying to load pics but im computer illiterate. It does have two inlets on the intake.

[crosscut]

the center line on the bottom of the carb is the fuel inlet, the one near it is the fuel return (to the fuel tank) . The one on the side is impulse pressure (crankcase). Just watch the cylinder temps while you are using it, these JLO/Cuyuna's like to run the pto side cylinder pretty hot. If you look on this site there are ways to help get that cylinder a little cooler, but not much.

[rondon]

So do i have to run an oil tank to the intake with a primer and mix gas? Just dont know that much about 2stroke snowmobile motors. That is the big question i have is the configuration of how the lines originally went together. Thanks for responding so promptly to

[pararailer]

Yes, you will have to premix the gas and oil. The primer is just to get a shot of gas in there to make it start easier after sitting for a wile.
The primer line needs to be T' d into the main fuel line. A little hand pump makes the gas squirt in.
A carburater like yours has a fuel pump built in. It is powered buy a air pulse from the crankcase. Make sure that line is hooked up properly.

[agentoragnge]

Careful Rondon... the smell of 2 stoke smoke is addicting ;D

[admin]

Rondon, you do not need an oil tank. Oil tanks are for oil injected engines. For your engine, you will get some oil and pour it into a gas can and mix it with gas.

You will need to know how much oil to mix with how much gas.

Scorp11 mentioned a 40:1 ratio is a good starting point to use.
That means 40 parts gas to 1 part oil.

You need to get a bottle of 2-cycle oil, However, do not get oil that is specifically advertised for "outboard" or BOAT engines. You need oil for a 2-cycle snowmobile engine. There are many brands available and they might not specifically say SNOWMOBILE on them.

Here's a few examples of oil that will work,





You will notice this oil says it's for Injector use. Look around on the bottle or advertising information and you'll often see this can be used for premix as well AND you will see the 40:1 ratio listed right on the container in many cases.

If you had an oil injected engine, you would dump that oil right into the oil tank. Since you do not have an oil injected engine (as far as I can tell at this point) you will whip up some premixed oil and gas instead.

On the oil container, you will see various mixture ratios. Find the 40:1 we just talked about and you will see how much of the oil and gas you need to dump into your gas can to create the "pre-mix". Put the top on the can and shake it up to mix it thoroughly before dumping it into your recently cleaned out gas tank.

Do not try to dump oil and gas into your gas tank individually and mix it in there. It's not worth the risk of a damaged engine.

Good luck, I hope this helps some.

[rondon]

Thanks everyone for the help. Ordered a primer plunger and lines off ebay new for $17.00 and just waiting for the package to get here to put it together and start this thing up. I will post again as soon as its breathing fire once again