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1997 Touring LE 440 Fuel pump replacement ??

4.1K views 7 replies 2 participants last post by  JohnWayne007  
#1 ·
OK so I've have had this sled forever it seems. after having a complete electrical tuneup last year at a shop it seemed to be running great for a while, but at the end of the season it was flooding pretty bad in between rides. A buddy of mine who works on his own sleds suggested I replace the fuel pump. So i bought a rebuild kit, then went looking for the fuel pump. Well it's under the engine. I don't know if i can reach the two mounting bolts without removing things like the exhaust- so that's easy enough, but for the folks who have replaced this part before , what's the best way to get access to it? Unbolt the engine and pick it up? Thanks Pat
 
#2 ·
On my 1996 Formula S 380 my fuel pump was under the engine aswell, i used an extended 10mm wrench and alot or patients to get the first bolt out on the carb side, i took the airbox and carbs off, took a while and not much room but it worked, i than took a socket and a bunch of extensions to reach the bolt on the exhaust side and that was the easy one. After rebuilding my pump i decided to relocate my fuel pump right under the carbs, there was 2 bolt holes already tapped there so it bolted up fine. Fuel pump should be bolted to the lowest part of the sled and this location besides the original was the second lowest and seems to be working fine here. I would check your carbs aswell since you will have them off already, float needle and seat/gaskets wouldent hurt to be checked over.
 
#4 ·
Well it's worth a try! Thanks/
No problem at all!, if your sled is flooding the first thing i would be looking at would be the carbs anyway. But due to the age of your sled a fuel pump rebuild wouldent hurt either. Mine dident "need" one but i did it anyway so atleast i know if somthing fuel related happens it probably wouldent be the pump.
 
#5 ·
I got the pump off. ended up removing the motor mount bolts and putting a block under the engine so i could get at it. A buddy of mine had recommended that i drill a hole thru the mounting plates in two spots so i can properly align it all when i'm done. SO i pulled the fuel pump apart and the clear diaphram was not cracked, broken or leaking. of course there are other parts in there so we'll see when i get it all apart.
 
#6 ·
I got the pump off. ended up removing the motor mount bolts and putting a block under the engine so i could get at it. A buddy of mine had recommended that i drill a hole thru the mounting plates in two spots so i can properly align it all when i'm done. SO i pulled the fuel pump apart and the clear diaphram was not cracked, broken or leaking. of course there are other parts in there so we'll see when i get it all apart.
After rebuilding the fuel pump take a look at your carbs, im leaning towards the carbs being the reason for the flooding. Atleast you know if it still happens after the fuel pump is rebuilt that its not the culprit, if i ever have flooding in any of my toys the first thing i look at is the carbs, if there was old gas in them left over from last season they could have clogged up jets, floats & needles ect. Causing gas to keep flowing when its not suppose to.
 
#7 ·
Well I finally got it back together today and I'm happy to report that she's running good right now. New fuel pump all new hoses I even cleaned out the oil reservoir and filled it up with synthetic this time. The diaphram in the fuel pump wasn't broken, but there was allot of crud floating around in it. i'm wondering if I should put an inline fuel filter on it?? At least with the new clear fuel lines i can see the fuel flowing. Anyways Now i just need some snow.
 
#8 ·
Well I finally got it back together today and I'm happy to report that she's running good right now. New fuel pump all new hoses I even cleaned out the oil reservoir and filled it up with synthetic this time. The diaphram in the fuel pump wasn't broken, but there was allot of crud floating around in it. i'm wondering if I should put an inline fuel filter on it?? At least with the new clear fuel lines i can see the fuel flowing. Anyways Now i just need some snow.
Thats good to hear! Hopefully you fixed the problem. I may be wrong but im pretty sure there should be a fuel filter inside your gas tank already. If not ive heard of people running inline filters between the tank and fuel pump. Have you changed out the intank fuel line? If not it wouldent hurt to check it out, these can crack and let contaminants through into the pump if theres also no intank filter attached.