95 polaris magnum 425. hard start, after started it rund good then it wont start at all. let sit for a week and it starts
Sounds kind of like a vapor lock situation. Your gas cap probably is vented. Be sure that the vent is not covered or clogged.
SOURCE: I have a 2004 Polaris 400. 4-wheeler. The bike
You have a faulty switch, or it has corrosion in it, moving the switch through it's full travel rapidly for a while to clean the inner contacts may cure the problem, or try disconnecting the switch.
Did it have compression before you bought it?
No power to the electric starter? Then you probably have no power to the ignition system. I'd check battery connections. Is the battery going flat overnight? Some shorts. Is there an ignition with a key? Is the switch good? or all the connections good? Corrosion does some funny things. Fuses may look good but actually are not.
SOURCE: Why is my bike backfiring?
a back fire on a bike is usually the cause of timing being out or damaged carburettor ( too much petrol going through ) in the case of the carb you can adust the air screw to see if that helps ( small screw in the side of the carb ) screw it right in and then bring it out 1 and a half turns ,this will get you very close to the right mixture. in the case of timing being out you will need to take the fly wheel off and adjust the stator plate ( turn it to the timing marks ) as a rule its usually . back fire through the exhaust is timing,back fire through the carb is fuel mixture. if you rev it when it starts and it pops through the exhaust the problem is within the fly wheel . if it pops through the carb the problem is with mixture.
Sounds like engine timing is way out mate take off right side engine cover and have a look at timing marks hope this helps
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