Tip & How-To about ATVs

Hard to start Atv ?

Dont always trust a spark plug that gives spark,(it might be a weak spark). Happen to me!! checked everything but didnt want to start, there was fuel,spark and everything seems fine but NO LUCK. Next day fitted new plug and it starts at once.

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How do you check the electrical system for no spark or weak spark on polaris sportsman 500 HO


hi seth if you remove the spark plug from the cylinder head and rest it against the side of it against the cylinder head you should be able to see if it is firing while you crank the motor. otherwise a spark plug tester can be installed in place of the spark plug

Feb 04, 2016 | ATVs

2 Answers

My four wheeler gets spark and gas to the carb but wont start what else could it be?


Carb could be dirty, float stuck or choke stuck. Pull plugs, crank engine and see if you are getting raw gas in the cylinder(s). If you don't get gas to the cylinders, you won't start. You also could have a flooded carburetor.

Jun 15, 2015 | Polaris 2004 Trail Blazer 250

1 Answer

it will turn over but wont crank


Not starting issues are usually spark or fuel problems. If you have gas getting to the carb then check your spark. First check all the wire connectors and plug wire to make sure everything is connected. If you find a loose connection fix it then try it. If not, then remove the spark plug but leave it attached to the plug wire set it on the cylinder head and turn the engine over. You should see a bright spark. If you have a really weak spark or none at all, then it may be your ignition coil or a related ignition part.

Jan 28, 2014 | kawasaki 2006 Bayou 250

2 Answers

300ex weak spark


CHECK THE BOOT THAT GOES OVER THE SPARK PLUG IT MIGHT NOT BE TOUCHING THE WIRE.. ALWAYS TRY A NEW SPARK PLUG

Sep 13, 2012 | Polaris ATV

1 Answer

WEAK FIRE


check cable, spark plug, spark plug cap for good resistance levels. then check the coil. easy fix.

May 15, 2012 | RTO 200cc Full Size Four Wheeler ATV

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