Many owners let their snowmobiles coast to a stop at histiocytoma home treatment the end of a season’s last ride, and there they sit in the yard all spring, summer and fall for the world to see. Unprotected from the elements, they degrade. Fuel hoses harden, seat fabrics crack and rust forms on internal engine components. Corrosion forms in the rear suspension, which causes parts to bind. Decals crack and peel, and the shiny finish on the tunnel slowly turns into histiocytoma home treatment a dull, chalky layer of ‘blah.’ snowmobiles deserve better.
Even if you aren’t so negligent, simply parking your sled in a garage and dumping a histiocytoma home treatment little fuel stabilizer in the gas tank isn’t enough to ward off sled wear. Spending about an hour in the spring to prep a histiocytoma home treatment snowmobile for the off-season will keep it reliable and fun to ride, not to mention help retain its value. You’ll need a can of storage fogging oil, a few ounces of fuel stabilizer, grease, simple hand tools, aerosol lubricant and a protective place for the snowmobile to histiocytoma home treatment rest until fall. Services explained here apply to snowmobiles with two-stroke or four-stroke engines that have carburetors or fuel injection.
Gasoline contains solvents that make it volatile, but when those solvents evaporate, the vapors rise from the carburetor bowl and might cause histiocytoma home treatment some metals to corrode. The green gunk that you might have seen in the histiocytoma home treatment bowl of a carburetor is remnant of fuel and corroded histiocytoma home treatment metal that ran down the inside of the carburetor and histiocytoma home treatment settled at the lowest point. Fuel injected engines don’t usually suffer from this condition because throttle bodies, typically, are airtight.
Fuel stabilizers are designed to reduce evaporation of solvents that histiocytoma home treatment make gas volatile. While using too much stabilizer won’t necessarily harm the fuel system, fuel additives inherently reduce the octane rating of fuel by histiocytoma home treatment reducing the concentration, so follow the directions on the container to add the histiocytoma home treatment correct amount of stabilizer in relation to how much fuel histiocytoma home treatment is in the tank. After you pour fuel stabilizer in the tank, slosh it around and run the engine for a few histiocytoma home treatment minutes so treated fuel flows through the system. Snowmobile off-season storage: fog the engine
Talk to someone from just about any crankshaft repair shop histiocytoma home treatment and they’ll say that coating the inside of a snowmobile’s engine with storage fogging oil is essential to prevent histiocytoma home treatment engine failure. This thin layer of oil protects parts like connecting rods, rod pins, cylinder walls and crankshaft bearings from air and moisture, which will otherwise work together to cause corrosion that makes histiocytoma home treatment those parts susceptible to failure.
You might know someone who fires up his or her histiocytoma home treatment snowmobile every few weeks during the summer to keep the histiocytoma home treatment fuel moving and spread a little oil through the engine, but that’s not adequate to ensure good crankshaft protection. Revving an engine or letting it idle for a few histiocytoma home treatment minutes probably won’t get it hot enough to burn off moisture inside histiocytoma home treatment either, and it could promote even more water vapor to collect histiocytoma home treatment on the crankshaft and within the exhaust system.
Gain access to the engine’s carburetors or throttle bodies by removing or disassembling the histiocytoma home treatment air box and pulling out the foam or air horns. In some cases you might be able to peel back histiocytoma home treatment the carburetor boots in order to give the fogging oil histiocytoma home treatment an unobstructed path from the can to the intake. Removing the air box varies from brand to brand and histiocytoma home treatment model to model. It’s fairly easy to access the throat of carburetors or histiocytoma home treatment throttle bodies on older sleds, but many newer machines are tricky due to tight spaces histiocytoma home treatment that are packed with wires, hoses and cables. Work carefully as you remove parts and make note of histiocytoma home treatment their orientation.
With the engine running, spray fogging oil into the engine. Spray the oil at each intake for a few seconds histiocytoma home treatment at a time, and then switch to the other cylinder while simultaneously pushing histiocytoma home treatment the throttle lever to keep the engine running slightly above histiocytoma home treatment idle speed. Continue to spray oil into the engine – alternating cylinders every few seconds – for about a minute, or until thick, white smoke comes out of the exhaust. Let it sputter and shut down. If the engine has carburetors, turn off the fuel switch and remove the drain plugs histiocytoma home treatment to let the gasoline flow out. This, in addition to adding fuel stabilizer, helps reduce the chance of problems with the fuel system histiocytoma home treatment in the fall.
Spraying storage fogging oil through the intake of a four-stroke engine will help protect the cam shaft, valves and other components in the cylinder head, but arctic cat, for example, specifically says not to fog its 1100cc engines. If you’re prepping a four-stroke engine for the off-season, check the owner’s manual to find out whether you should do this histiocytoma home treatment step. The manual might also suggest that you change the oil histiocytoma home treatment and filter. Two-stroke ski-doo sleds with E-TEC direct injection have a self-fogging feature. Snowmobile off-season storage: grease the chassis
To help keep the suspension and steering systems working smoothly, pump a few shots of grease into each zerk on histiocytoma home treatment the chassis. This pushes out water from within the small shafts and histiocytoma home treatment suspension tubes, and fills those small voids with grease so moisture won’t collect inside the tubes during the temperature cycles of histiocytoma home treatment early spring and late fall.
Snowmobiles built within the past few years generally have fewer histiocytoma home treatment grease zerks than earlier machines. You might find two or three in the rear suspension histiocytoma home treatment and a couple on the front end, but a sled from the mid-1990s, for example, could have six zerks in the skidframe and more than histiocytoma home treatment four on the front suspension. Use light from a bright flashlight to look under the histiocytoma home treatment engine for zerks on the steering system.
The specific location of where you park a snowmobile during histiocytoma home treatment the off-season can affect how well it weathers the humid summer histiocytoma home treatment air. Under a tarp in the front yard is probably the histiocytoma home treatment worst place to store a sled because that cover doesn’t provide real protection from the elements and it traps histiocytoma home treatment moisture, which can accelerate corrosion. A sled set on top of a sweaty, concrete floor isn’t good either.
Elevate the rear end of the machine by placing a histiocytoma home treatment jackstand under the rear bumper, and then unhook the springs. This relieves tension from the springs and helps them last histiocytoma home treatment longer, not to mention it takes weight off the track lugs histiocytoma home treatment so the tips don’t fold over. Lift the sled and set the chassis on a wooden histiocytoma home treatment box or milk crate so the front suspension hangs freely, too.
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Nearly all northern states have a summer and winter blend histiocytoma home treatment of gasoline – avoid using summer blend gasoline in your sled. In addition, ‘ethanol’ has also become common place at varying percentages. You will note in your newer sled owners manual that histiocytoma home treatment the manufacturers’ recommend using gasoline with minimal to zero ethanol contain. The reason is that ‘ethanol’ will phase separate (water will separate out of ethanol) in as little as 30 days. In addition, and as stated, the chemicals (additives) in gasoline also tend to breakdown at the same rate.
In the past, stabilizer manufacturers’ recommended adding the stabilizer and running the engine until that histiocytoma home treatment treated fuel has reached the cylinders. Then, fill the tank to full with stabilized fuel. Today and with sleds with a plastic fuel tank, the recommendation is to have at or less than 1/4 tank of fuel, add the stabilizer and run the engine until the treated histiocytoma home treatment fuel makes it to the cylinder. Prior to the early winder start-up, drain as much fuel from the tank as possible prior histiocytoma home treatment to filling the tank with fresh winter blended fuel and histiocytoma home treatment starting the engine.
Buy your fuel from a gas station, which has a steady and ‘high volume’ of customers, commonly in larger towns/cities and/or at major exits along primary highways. This is all based on ‘ethanol’ and the water build-up in the gas stations tanks, which is a reality and the less fuel a station histiocytoma home treatment pushes through their tanks, the greater the likelihood of phase separation in their tanks. The greater volume of fuel pushed through their tanks the histiocytoma home treatment greater the likelihood of ‘ethanol’ not separating.
I use KLOTZ, octane booster / stabilizer / cleaner (KL-602) with every fill-up (25% of storage recommended blending volume) because my two-stroke requires 91/93 octane and since that fuel has much lower usage, even in high volume gas station. I see it as insurance, remembering that 15 minutes on your sled can be 2 histiocytoma home treatment to 3 hours of walking. Point being, I would rather sled along at 25 to 30 MPH histiocytoma home treatment than walk back to get help.
When I am riding in areas that I do not histiocytoma home treatment know the gas stations, I commonly add a quarter bottle of HELIX 5 in histiocytoma home treatment 1 ultimate fuel additive prior to fueling up for the histiocytoma home treatment trip. This additive has an additional chemical additive that will reverse histiocytoma home treatment phase separation and will lessen the effect of a water histiocytoma home treatment in fuel. I carry a (8 oz) bottle on my sled at all times when I am histiocytoma home treatment not traveling in my home area.
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