Polaris Sportsman 400 - Popular Questions, Answers, Tips & Manuals

Various ideas in the link. Engines only need three things Good fresh fuel to the engine. A spark at the right time Compression https://www.google.com/search?q=2004+Polaris+Sportsman+700.+Crank+but+no+start ..

https://www.manualslib.com/manual/817908/Polaris-Sportsman-400.html

did you check the float height?

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replace the battery as there is not enough charge to start and provide power for the ignition when you pull start the max power is provided to the ignition system

Just a suggestion but you should consider soldering all your electrical connections to insure they are weather and vibration proof. Additionally, I added a small 3 amp circuit breaker, but a 1.5 to 2 Amp automotive fuse and fuse holder will do nicely. Process: 1- Disassemble the 'Instrument/Light' cluster cover. 2- Remove the 'Radiator access' panel. >>>Perform This Test BEFORE Proceeding and make SURE all power is OFF!<<< 3-On the drivers LEFT side of the radiator access area, locate two (2) connectors, each with SOLID GREY wires and BROWN wires with a WHITE Stripe on top and smaller diameter Solid Grey and Brown wires with a White stripe leading down. --a) Disconnect both connectors by pulling the top and bottom sections away from each other. (DO NOT pull the WIRES, use the connector body to pull). --b) Test EACH of the two (2) connectors with the SMALL DIAMETER wires leading down. (see Hub Coil Connectors pix) --c) Using an OHM meter, measure the resistance across the two pins (one connector at a time) for each connector. Depending on the accuracy and sensitivity of the meter, each connector should read between 25 and 28 OHMS. NOTE: If EITHER of the two (2) Hub Coils reads ZERO (0) or less than 25 or Greater than 28 OHMS STOP!!! The Hub Coil itself OR the wires OR the connectors may be defective or in need of repair! --d) Using an OHM meter, on EACH of the two connectors, measure the resistance between one pin of each connector and GROUND (any bare metal point on the ATV frame). NOTE: If EITHER of the two (2) connectors resistance to GROUND reads anything GREATER/ABOVE than ZERO ( 0 ) OHMS STOP!!! The Hub Coil itself OR the wires OR the connectors may be defective or in need of repair! >>>If the test in 'c)' or 'd)' FAIL STOP, DO NOT proceed!! The Hub Coil itself OR the wires OR the connectors may be defective and MUST be repaired before ANYTHING else is done!<<< 4-(For my model) On the right handlebar, check the lamp in the AWD switch to make sure it is not burned out or missing. Replace lamp if necessary. (Not essential to the AWD operation, just nice to have to confirm voltage is being applied to the front wheel Hub Coils) 5-In the 'Radiator Access' area, locate the Red/White stripe wires providing (switched) full time + (battery plus) voltage (accessory power) via a ¼" female connector. "Accessory Leads" - in the wiring diagram. 6-Using a volt meter (or continuity light), CONFIRM that the terminal is OFF (NO voltage) when the ignition switch and the 'Engine STOP/START switch (on the left handlebar) are both OFF, and has + (positive) battery voltage, when the ignition switch and 'Engine STOP/START switch are both ON, with the engine NOT running.

o pull the fuse

Bottom of motor, look for a cut out in the skid plate and there should be the plug

Where do I find a key wire for a winch on a Polaris 2004 400 ...

You need to replace the battery.

Could possibly be the cdi unit is overheating/going bad.

It sounds like the external coil is bad.

most likely a fuel issue. has it been sitting up ? if so if its got a carb it prob gummed up, pour some seafoam into the gas tank with fresh gas and run it, try and keep it running with the throttle, it might clear some varnish out the carb if it not too bad, if tht dont work and it is a carb engine then the carb will have to be removed and cleaned. if it a FI engine then you got a bad full pump more than likely If you need further help, reach me via phone at https://www.6ya.com/expert/allen_b068623c5003aa4b

check wire plug on handle bar most likely corroded unplug and sray with bat, cable cleaner and try

This is not normal. You should have a dealer check into it. An electrical issue can be 5 minutes or 5 hours or more to find. Sounds like a ground is bad somewhere. Check the battery terminals.

You can check a solenoid by using an ohm meter. Or just take it to a auto shop and ask them to check it for you if you don't have one. They can check it real quick and shouldn't charge you anything.

sounds like you need a new camshaft and exhaust rocker arm. they are a very common problem and i had 2 sportsmans that did exactly the same thing. you can buy high quality forged camshafts on ebay that will not wear out like stock polaris or cheap aftermarket cams.

ok 4 things could be the problem, check to see if you have spark. if you have spark then spray some starting fluid into the carburetor or air box. if it does not start then check the compression, if the compression is good, and you have spark then check the camshaft. these have been known to eat the exhaust lobe of the camshaft right off. that is where i would start.

Get codes from the dianbostic computer reader at Pep Boys/ Autozone etc. or the dealer. This should tell you which sensor is out