Hi guys where is your fuel pump mounted at???

[spookum]

I think the engine is being starved for fuel. I pulled the fuel bowl off of the techumsun engine (it is a 1980s 8 wheeler, double 50 chain). I was just wondering where is your fuel pump mounted at? It seems like every snow mobile i have ever seen has it low enough the fuel tank can gravity feed the fuel pump. The argo's fuel pump is hanging with the fuel line and nearly touching the carb. IF it cant be gravity fed, will it not pump it up as well? I dis connected the fuel line to the carb in inspected everything for cracks or leaks, and it just seemed like it wasnt moving much fuel, and putting my thumb over it it refused to build any kind of pressure.

any and all kinds of help is appreciated, except for recommendations of electric fuel pumps, from the threads that is the number one way to burn a machine down.

thanks guys and girls!!!

[JohnF]

I have a 97 conquest. It has an electric pump mounted under the seat near the top of the fuel tank. It is supposed to be a low pressure pump and I too can stop the flow with a thumb over the end of the hose at the carb.

I would think that if I shut off the pump when the engine stumbled or died and I found fuel in the bowl then the problem is in the carb. Two weeks ago I replaced all of my fuel line and the fuel filter because dispite not seeing any issues I kept having problems with tiny stuff messing up my carb. No problem yet but I have my fingers crossed.

[eightwheeler]

stock Tejunksie fuel pumps are mated to the carb so someone divorced it so is it a newer pump or?

[spookum]

i dont know??? I think that the way to go here is to replace it with a pulse style from a snow machine.

[rgonut]

stock Tejunksie fuel pumps are mated to the carb so someone divorced it so is it a newer pump or?

So then if my Argo has a electric fuel pump it is not stock . it is located on the top of the right fender well in the engine compartment .And why would a snow machine pulse style be better than an electric pump ?

[eightwheeler]

Spook i would recommend a newer Briggs plastic one they work great and are trouble free Rgonut yes your pump is not stock unless it has a nice Kawasaki FD620 in it(Conquest) im not sure if either pump is better but personally i love my electric fuel pumps

[spookum]

Thanks guys, i have decided to go with a mikuni pulse pump. It is the square style, after much research, techumsin dosent make them any more, and this will be as close to OEM as i can get, and it will most likely out live the machine!

https://www.denniskirk.com/mikuni/single-fuel-pump.p1609.prd/1609.sku

thanks

[spookum]

rgonut. I hate to stomp on what 8 wheeler said because he is one of the guys i look up to and pay attention to on these boards. How ever, my research has taught me that the number one leading cause of burning an argo up is the aftermarket electric fuel pump. The pulse style can no longer run if the engine stops, aka back fire. how ever the electric one can. So this just throws more gas on the fire, literaly. So if you run an electric fuel pump, at least take a fire extinguisher for me

[eightwheeler]

thank you very much Spook, i was just saying that i love electric pumps because i love my FD620's which all come with E pumps and are in many machines like Argo Conquest and John Deere Gators lol

[spookum]

dont get me wrong though, machines that have e-pumps stock, their good to go. You only really run into a problem when it was stock with a mechanical, and then somone puts an electric pump in. Bet you would be ok, but not me man, not me.

[spookum]

Back to the fuel pitty party. I replaced the pulse pump (brand new $22 mikuni), and yes it is divorced from the carb. It still seems to be starving the machine for fuel?? I also replaced the fuel filter (just for fun). I am now going to replace the fuel line. My other argo the 70s one, has the fuel line running down the frame rail. This one has it running down the inside of the upper tub. Anybody against moving the fuel line down lower? I think it would get the fuel closer to the carb and therefor make it easier tor get it to run.

many thankks guys!

[newguy]

I'm a little late to the party on this so you may already be good to go. I was having the same issues on a second hand 96 conquest last year (my first argo) . The machine sat in an unheated garage (interior Alaska) for at least 3 years (started periodically by owner, but not run for any extended amount of time). I did all the obvious; drained the fuel and replaced the filter, even pulled the pump off to inspect. Found lots of varnish and corrosion on both the in and out ports. Cleaned and reinstalled, cleaned the carb (or so i thought). Ended up taking the carb off again and gave it a more thorough cleaning. Took small (.032 or .040) safety wire to the orifices, low and behold they were partially clogged. Problem solved! If you haven't solved yet, I hope this helps.

[msafi65]

Spook I have used the 22-1009 or 22-1012 pumps on the tec. Both part #s are from tulsa engine whse. Also the e pumps ive seen that cause problems are the automotive ones that produce 5-7 psi and get installed aftermarket. The true low pressure ones for small engines are dependable and shouldnt cause flooding.

[Elmo]

I just got over the same problem and found bypassing the old vacuum pump and installing a low pressure electric fuel pump in front of the engine behind the winch and running new lines avoiding hot areas on the engine solved the problem.