i have a 99 scrambler 400 4x4 and today when i was riding it acted like it wanted to die so it just went quite for a second then let off throttle for a secong and it ca, back to life, so the it did it a gain so i headed back. so when i went in for 10 min and came back out started it up to take to shed and for the first 30 feet it was fine, then it would barely creep along at all. so i had to push it the finally 10 feet. what is the problem? spark plug?

Still doing the same thing but now it just does the half die thing part of the time seems like after rode for around 3 minutes, replaced plug and tried gas cap deal...


David

 

Maybe your running really rich and your fouling plugs. Or you may have the wrong plug. I really dont no im just trying to help you.

 

Is your air filter clean?
On my shee, I had a hard time climbing a ridiculous hill in first gear (clutching...etc). Got up there, looked at the air filter, cleaned it. Worked like new. Shame on me!

 

Is your air filter clean?
On my shee, I had a hard climbing a ridiculous hill in first gear (clutching...etc). Got up there, looked at the air filter, cleaned it. Worked like new. Shame on me!

 

New fuel filter spark plug, clean or replace the air filter. Also turn the air screw out to 1.5 turns and check your jetting. make sure it is not plugged also see if you tank is not vacume locking vent hose could be plugged. Before you do this Do you have water in the gas? Use some heet or iso, is your choke staying on? Is the exhust plugged?