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Replacing Parts on Your Snowmobile

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If you decide to repair the snowmobile yourself, you will need to take some steps to do it correctly. If you don’t follow a certain pattern, you will not do it right. The first thing to do is get the snowmobile in a clean dry area where you have plenty of room to work on it. Have a jack handy in case you need to jack it up in the air. Get all your tools together that were recommended in the service manual. How, let’s say you have to replace the head. Here is a step-by-step method on removing it:

• Have all parts ready to put on. Don’t be haphazard here. Make sure you bought all the parts you need do you don’t have to waste a step going back to the parts store.
• Take a rag and clean the entire area you have to work on. In some situations, especially if the engine is really dirty, you may want to spray special engine cleaner on it. This will loosen the dirt, sludge, and grease so it can come off easily.
• Take and clean all fittings so you can get to them easily. Make sure there is no grease on any tube fitting. This will help to turn the fitting. Take a wrench and remove all fittings connected to the engine block. There may be more than one.
• If you find any gas, take it out. If you have to siphon all the old gas so you seen none.
• Remove the drive belt. To remove it, place the snowmobile on stands so that the track hangs loose. This will make it easy to turn the engine. Remove the belt cover or shield. Grab the belt and turn it. As you turn it pull on it. As you do this inspect it for cracks, loose cords, or other damage. If you snowmobile is more than five years old, replace it.
• At this time remove the spark plugs. Throw these spark plugs away. Always put new spark plugs in when doing this.
• After removing the spark plugs, check for carbon build up. You can do this by looking in the exhaust ports. If you can’t really see in there from this angle, take the muffler and manifold off and look in there. While you are looking in the port, take a piece of wood and scrap off any carbon build up. Your goal is to clean the inside of the port and any surrounding surfaces.
• After you do this, siphon all fluids from the chain case. If there is a drain bolt, take it out. When you are ready to put the fluid back in use your snowmobiles manufacturer’s recommended fluid.
• While you are doing it, unbolt the case cover and replace the internal seal or o-rings (only if your snowmobile is old or has been experiencing leaks).
• Next, check your brakes for correct operation. If they need adjustment, do so until they are adjust according to specifications.
• After you have finished the chain case and put it back together, replace the oil and fuel with a pre-mix solution that is 20:1. Make sure to top the tank off and always carry an extra quart with you just in case.
• If you are replacing any other part other than the chain case or motor, follow the procedures in your service manual. This way you are guaranteed to do it correctly without hassles.

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