i have a 2000 warrior 350 stopped running won't start has spark cleaned carb air filter, turns over but wontgo

Question

turns over lots of compression new plug ,fresh gas i'm stumped the bike has low hours changed bottom end oil what else can i check ?

Answer 1

It takes 4 things for an engine to run
1) Fuel - in correct proportion to air.
2) Compression
3 ) Spark
4) At the right time.

With plug out, make sure the engine turns freely. Newbies often think a hard to turn engine has compression, when it is a bind.

Make sure plug is clean, if in doubt, put in a new one. A partially fouled plug will fire when laying on the cylinder head, but not under compression in the cylinder. Is spark hot enough? Take an old, but good plug, bend the ground electrode out straight, connect cable to it, lay on block, and see if the spark will jump from center electrode to ground, if not, inspect the ignition system. If ATV has points, check for correct gap and clean, gray contact surfaces.

Is carb clean - inside? Water in the float bowl, plugged jets, a float hung, not letting gas into carb, a float which does not shut the fuel off at proper level, and wets the spark plug. After trying to start, is the plug wet? Is the choke/enrichner working properly?

If the answers to the 4 questions are all YES, it will run. Use the check list to find which is wrong..

Tomcotexas

Answer 2

First, verify to make effective there is spark, then verify compression to make effective it has sufficient, then verify the air filter out for cleanliness. Then in case you have the two certainly one of those attempt squirting some gas into the carb and see if it starts off and dies. If it starts off and dies with gas sprayed in you have carb issues. If it does not initiate in any respect that is advisable to determine if the timing key has been sheared between the flywheel and the crankshaft. Even a small indentation interior the foremost could make the mower not initiate. reasons of this oftentimes stem from hitting something perplexing like cement with the mower.

Answer 3

Clean the carburetor.
Bad gas probably clogging the pilot jet.