thank you and sorry - Snowmobile Forum: Your #1 Snowmobile Forum

newcatrunner · 12-25-2006, 03:45 PM

i would like to start out by appologising to everyone who has responded to my posts...i have not been patient with your responses and dispite all the ranting i have been doing you were still willing to assist any way you could.

i finally found what the problem was and i will post a pic sometime today to show but the main wiring harness was rubbing on the driveshaft(think thats what its called) when the sled warmed up it would arc out all my electical..for those of you with the simaler problem check the main harness under the airbox.

this is by far the best forum i have looked at and hope you dont boot me for my ignorance...i will recomend this site to anyone i know with a sled.
that being said i do have one more minor problem i need an answer for.

if i prime the cylinders it fires up and runs great now, but it will not give it gas on the pull alone..faulty fuel pump?? once its primed it stays running thats why im thinking pump is faulty or weak

upersleder · 12-25-2006, 10:42 PM

it could be. you can also check your pulse line, it will go from your crankcase to your fuel pump. if its rubbery it may not be working well. also check your choke cable free play, and be sure the carbs are clean.

**RJ Gleason** · 12-26-2006, 12:05 AM

Also clamp all the fuel and impulse lines.

eric phazer · 12-26-2006, 01:23 AM

i rubbery pulse line may cause slight loss of pressure but not enough to notice unless sommthing else is wrong anyway, id be much more worried about a cracked or cut pulse line.

the diaphram is leaking, the carbs are just dirty and clogged, or your out of gas and runnin on whats in the carb, sorry to dought you if out of gas is a stupid question, but everyones done it at least once wether thell admit it or not...lol.

does the problem get better or worse with choke.

good luck

NorthernGuy · 12-26-2006, 07:27 AM

Could just be a simple choke issue. Prime it, fire it up, and pull the choke in and out, if the idle\engine sounds change then you know the choke is functioning. If not change is heard\seen then the cable might be out, plate might be stuck, etc. Hopefully it's just a simple choke issue. Glad to hear you got it running!

jagermiester · 12-26-2006, 08:06 AM

I have had sleds before that you had to prime to start but you had to keep hitting the primer a few times to keep it running till it would idle on it's own. I'm not talking excessive, maybe start, wait 5 seconds, prime, wait 5 seconds, prime, idle.

newcatrunner · 12-26-2006, 08:15 AM

would water in the tank cause it to need priming..(water + spark = nothing). cuz i think thats might be my problem because when i finally got it running i had the airbox off and the carbs seem to be blasting fair bit of water out of em.

gonna drain tank again and reclean carbs and see what happens

NorthernGuy · 12-26-2006, 08:41 AM

Throw from fresh fuel in it but before you do so add a bottle of water remover (like HEET) and let it sit for a few minutes. That'll pull it out without a problem.

newcatrunner · 12-26-2006, 08:50 AM

here is the pic i promised ..sorry its a lil blurry

upersleder · 12-26-2006, 09:36 AM

thats a nice place to run the wiring

rvanderklok · 12-26-2006, 10:38 AM

You've DEFINATELY got to find some other way of running that wiring. Most sleds I've seen go under the driveshaft and have clasps that hold the wiring tight to the body of the sled so that it won't rub against the driveshaft. I'm guessing someone was doing some work and ran the wires wrong when they were done....

Dennismc · 12-26-2006, 11:31 AM

If yo uuse heet only use A LITTLE BIT OF it, remember that bottle is designed for a full tank of gas in a car, also most water drys have alchol in them, so keep this in mind, to much of it in with the gas and you run the risk of leaning out the fuel mix to much... bad things to happen then..

mx and sled 41 · 12-26-2006, 07:36 PM

if alcohol leans out the gas so much then why would gas stations sell it in theor gas? it just makes it burn cleaner :S

IndianRvrShiver · 12-26-2006, 08:17 PM

Quote:

Originally Posted by mx and sled 41

if alcohol leans out the gas so much then why would gas stations sell it in theor gas? it just makes it burn cleaner :S

"Gasohol" is only, at max, 10% ethanol by volume. In todays cars, the closed-loop EFI systems can easily conpensate for that mixture. Carbed sleds have fixed jets & cannot compensate, so it will run a wee bit leaner. Some sleds come with an ethanol switch which richens the mixture when using gas/ethanol blend.

Fixitguy74 · 12-26-2006, 08:21 PM

Yes gas stations some times have alcohol blended fuel (MTBE or others). That does not change the fact that it causes you sled to run leaner. Alot of the newer EFI sleds have a switch or wire to connect or disconnect to tell the computer to change the fuel map to compensate for this. If you have carbs and run a 10% or more blend of alcohol regularly then you have to rejet. Check your owners manual (you know, the book that came with the sled that nobody ever reads) it has a section that covers this. Also never run heet, only ISO-Heet. The regurlar heet has methenol in it and can damage pump diaphrams. So use only an isopropal alcohol water remover.

Steve

NorthernGuy · 12-26-2006, 09:35 PM

Hmm quite a controversy I started here. I know lot's of people who run standard "Canadian tire brand" water remover\gas line antifreeze in their sleds without issues so far. In fact a friend of mine blamed his blown engine last year on not using antifreeze because one of his carbs froze overnight (-45deg) due to some water in the mix and cracked his boot while it expanded which in turn let more air in, leaned it, and melted half the engine down.

I am currently running a crossfire 700 EFI. Will my EFI be ok with "water remover" in it? I ran some in the first tank and didn't have an issue. I have some in there now, should I be concerned? I know I have a plug to plug in if I'm using blended fuel but I don't think I put enough water remover in to be considered "blended fuel" or anything. Should I just stop using the water remover and maybe throw some extra oil in the current tank (200:1 mix maybe?) just to beef it up a bit to be safe?

Sorry to drag off topic!

upersleder · 12-26-2006, 09:51 PM

only use isopropyl as said, dont use alot, only enough for one tank of fuel when its full. i only use it when i think i may have a condensation issue, but a couple years ago i got a slug of water from a gas station and burned a motor down. in that perticular instance i dont think adding isopropyl to that tank would have saved my motor.

Fixitguy74 · 12-26-2006, 11:57 PM

If you add 10% or more water remover then you need to plug in as required, but that would mean for every 10 gallons of gas one gallon would be water remover. Follow the instruction on the bottle and you will be fine, with no need to plug in.

Steve

**RJ Gleason** · 12-27-2006, 03:06 AM

NorthernGuy;
Use a little Isopropyl in each tank, and I usually run some injector cleaner every 3rd tankful. Just a little, not even as much as directed, just to keep the injectors clean.

NorthernGuy · 12-27-2006, 07:06 AM

Quote:

Originally Posted by RJ Gleason

NorthernGuy;
Use a little Isopropyl in each tank, and I usually run some injector cleaner every 3rd tankful. Just a little, not even as much as directed, just to keep the injectors clean.

Quote:

Originally Posted by Fixitguy74

If you add 10% or more water remover then you need to plug in as required, but that would mean for every 10 gallons of gas one gallon would be water remover. Follow the instruction on the bottle and you will be fine, with no need to plug in.

Steve

Thanks guys, I was only adding about half of what was recommended by the bottle (1 bottle per 15gallons, so 1\2 bottle to my 12gal tank) so I think I'll be ok. Sorry again for dragging off topic guys hehe