Hey everyone im starting to get very angry wiht my 1998 mxz 440
It will run really good then i will shut it off n go do something for a very short while nd when i come back out n fire it up itll run for about 30 seconds then start bogging out so i will stop it n put new plugs in it n itll run good then as soon as i shut it off n start it back up it does the exact same thing...It has a new stator new ignition plug nd new cdi box.....when it does run it runs amazing but then after itll run like $#!* but anyways any help appreciated as i am very confused :cussing:

From what I understand is......after you put new plugs in it's fine and runs good!!


I would wonder if your floats are sticking and your floading the engine when you shut it down.
Are your pugs wet??

Zoom

Yes the plugs are wet but they are not drenched but itll go n then my rpms drop right down im so confused ive had enough of it but thanks for oyur help

either it's getting air from somewhere unwanted or it's not getting enough fuel. first check to see if the fuel lines are right full of fuel no air at all in them.

There is an air bubble on one of the fuel lines but it is the right hand piston/cylinder that is shutting down nd the air bubble is on the left and one :confused: But me nd my dad when it is runnin like crap we use plyers and we pulled both the caps off the plugs the left one made the sled shut down like it is suppose to but the right hand one when we pulled the cap off it kept running so im very very confused thanks for all of your help!!

bubbles in the fuel line equals water in the fuel. pour in isopropyl.

He said the plugs were wet, so it is getting fuel. May be to much fuel, fouling the plug.

We poured some gas line antifreeze in it the same kind you said....so thats not the problem but if it is gettin to much fuel then what does that mean i would have to do to stop that im only 13 goin on 14 so i dont know much about it all but anyhelp appreciated

Does it sounds like an electrical problem or could it be a head gasket maybe...i was told by some people to check that or maybe watta bout pistons...weve checked the pistons n they are fine the rght hand piston is scuffed but it was this way when we bought it anyhelp appreciated.

Alrighty everyone
we figured out wat the problem was turns out the stator we bought from a local dealer was bad and a piece of plastic fell off when we took the fltwheel off so we looked into it and the flywheel has come loose causing the motor to overheat anyways thanks for all your help