What should the finger screw on the carb of a Polaris 330 magnum be set at?

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I take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I don 't prefer... rest is up to u.. U can also get free manuals

adjust the throttle to max

Fuel starvation (supply or wrong carb or tune) and/or insufficient or poor quality spark.

Make sure the air filter is clean and only test with it connected as it sometimes makes a lot of difference. It could be worth checking the exhaust for blockages.

replace the faulty fan relay or check for a problem wire from the ignition to the sensor to the relay

Polaris fuel filters are usually in the fuel line coming from the valve that turns fuel off. This model does not seem to have an inline filter, however you can always buy a universal one and splice it into the line so that then it does have one

First make sure the carb.mounting flange is tight. being loose or cracked will allow air in leaning out the air fuel mixture. Next remove the low jet in the carb. its most likely plugged. try carb cleaner and blow it out with compressed air. Last resort,take the paper off of a twist tie and run it through the jet. If all else fails,buy a new one.thier only around 4 dollars.

its more than likely under the seat...

If you need further help, reach me via phone at https://www.6ya.com/expert/allen_b068623c5003aa4b

Finger screw, (Idle Screw).. if the carb is CLEAN, new spark plug, valves properly adjusted, etc.. its only function is idle speed and it is what you are comfortable with!

You need to inspect all gas lines for obstructions including the gas tank , and especially the carb. I can bet dollars to doughnuts that it's a fuel problem something is blocking the fuel and by rocking it it's allowing the fuel to go through. hope this helps , let me know how you make out .
Adam J