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You should be able to replace the timing chain while the engine is on it as long as there is nothing in your way. Make sure you have enough clearance so you can work, and that you can remove the sprockets(if needed) and the old chain first. Be careful not to get too much dirt on the new chain.
Raze the track off the ground , there is a adjustment bolt on the chain case losing the check nut and turn the bolt by hand until tight, then turn the track and recheck, you might have to take the exhaust off to get at it, If i was you i would take the chain case cover off clean and every thing and put new oil in, most people don't even check the oil and then blow the chain, the oil thins out in the summer and drains out a littly each year until theres none.
vaguely recall on my polaris explorer 300 4x4 it had rotating cams where the chains run. ie, loosen a lock bolt then rotate the cams to tighten the chains.
To adjust chain tension in the chaincase, loosen the jam nut on the chaincase with a 9/16" wrench a few turns. Then turn the adjustment ***** in with your fingers until it can't be turned by hand anymore. Once that point is reached back the ***** out 1/4 turn and tighten the jam nut. Best of luck, Daniel
14 - 41 = 2.93 ratio
15 - 46 = 3.06 ratio..
6-7 links.. you need to move the axle all the way forward when installing a new chain... (it will stretch!) moving the axle all the way forward gives you plenty of adjustment later!!
go on youtube and look up the specific quad but usually you take off your timing cover on the head and put the notch to the top of the head and there should be a big flathead bolt thing to unscrew on the bottom end of your motor and un screw that and look for something that is carved in there like "TDC" "T" top dead center align it so they are both straight and make sure to loosen your chain that's usually on the head it should stick out or a bolt or some thing and take it off and that pretty much it
the rear wheel is the adjustment. loosen the main axle bolt and slide the wheel back until chain is tighter. if it has rear suspension there should be a small amount of slack in the chain when done. retighten axle bolt.
My first check would be the condition of the chain and sprockets. Check to make sure all of the teeth are still ok and if the tension of the chain is correct and that it is well lubed.
If the noise is more pronounced from the rear and chain and sprockets are ok, it could be the differential that has either failed bearings or damaged gears.
Hi Matt only help I can give is look along top & bottom of chain for a tensioner it will be a round rubber wheel. If you cant find a tensioner it will more than likely you need to cut the chain down. If your not sure how to let me know & i'll let you know how. Also DO NOT USE IT while chain is loose as if you do & chain comes off you can crack engine case which then means a new engine
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