I was out yesterday on a run with my cousin and everything seemed to be going good til we were on our way back home.The snow wasn't packed by any means but there had been lots of traffic on the trails so it wasn't like we were busting new trail or anything and as far as being heavy on the throttle we weren't,it was kind of rough to be gouging on it too much.Anyway we left our turn around spot and I noticed that my gas gauge was reading a bit lower than I thought it should have but headed back anyway not bothering to check anything over,stupid I know but ........
The distance wasn't that great that we had to go only about 15 miles give or take,mabey 20 at the outside,so I didn't really concern myself that much about the gas level at first.The further we rode I noticed the level getting lower and lower and if it wasn't for the fact we weren't that far from home I'd have been very worried.So we make it back and I load my sled onto my truck with the intention of yanking the carbs off today to investigate my fuel usage.
I figured I'd find something along the line of a sticking needle or possibly a jet that had backed off but what I ended up seeing was the fuel line going to the mag side carb wasn't tight on the inlet spigot.I could see gas coming out around the top of the fuel line and the sled was off so I can only imagine how much must have been coming out around it while running,well about half a tank in 15-20 miles I guess if I had to put an amount to it.All 3 lines were replaced in November with new but I used the old spring clamps which sealed the other 2 carbs fine but looking back on it I should have replaced them too.I replaced the gas line again with new took the carbs all apart and cleaned them while I had them off and didn't see anything out of the ordinary but set my floats to 14mm from where they were,around 12 I think,and put everything back together and fired the sled back up.Seems to be running fine just sitting in the shed but it will be a few days before I get to check and see if what I did made a difference,hopefully it is cured I can't afford this kind of foolishness.
The distance wasn't that great that we had to go only about 15 miles give or take,mabey 20 at the outside,so I didn't really concern myself that much about the gas level at first.The further we rode I noticed the level getting lower and lower and if it wasn't for the fact we weren't that far from home I'd have been very worried.So we make it back and I load my sled onto my truck with the intention of yanking the carbs off today to investigate my fuel usage.
I figured I'd find something along the line of a sticking needle or possibly a jet that had backed off but what I ended up seeing was the fuel line going to the mag side carb wasn't tight on the inlet spigot.I could see gas coming out around the top of the fuel line and the sled was off so I can only imagine how much must have been coming out around it while running,well about half a tank in 15-20 miles I guess if I had to put an amount to it.All 3 lines were replaced in November with new but I used the old spring clamps which sealed the other 2 carbs fine but looking back on it I should have replaced them too.I replaced the gas line again with new took the carbs all apart and cleaned them while I had them off and didn't see anything out of the ordinary but set my floats to 14mm from where they were,around 12 I think,and put everything back together and fired the sled back up.Seems to be running fine just sitting in the shed but it will be a few days before I get to check and see if what I did made a difference,hopefully it is cured I can't afford this kind of foolishness.
What size gas line are you using? The Yamaha line is an odd size and with the wrong line you might have trouble keeping it sealed.
I've been using 1/4" line as a replacement for years and have never had a line do this before,I'm not sure if I somehow swelled the end when I put it on the first time or what.
MikeSr
New member
Go to 3/16 line. I had replaced the original line (which is 5mm, in-between 1/4 and 3/16 ) with 1/4 and didn't like the looks at it at all, so tore it off before I put any fuel through it and wen to 3/16. Get the yellow line if you can because it is much more pliable. Clear is the least pliable. Blue or yellow is the way to go. And it is a tight fit, so what you do is microwave a cup of water in a coffee cup for a couple minutes to get it nice and hot, then lay the ends of the line in there and let it sit for a couple minutes, which makes it much easier to slip (force) on.
taylzee
New member
Microwaving water is not recommended. chances of explosion are high!!!
If you din't believe me...google it!
Being the experimental guy I am...I tried it...WOW!
If you din't believe me...google it!
Being the experimental guy I am...I tried it...WOW!
taylzee said:
From what I've seen, it's not the microwaving of water thats dangerous, it's overheating it then putting something like a spoon into the superheated water that's dangerous.
FWIW - I microwave coffee all the time... well not all the time but when I'm too lazy to make a fresh pot. Under a minute usually does it.
...also, without the proper convolute press - heating the ends in a cup of water is the only way you're going to service many modern day automotive electric fuel pumps.