ugh, well the other day i got out on my sportrax and started hearin a noise is the rear end, i think a gear is chipped or sumthing, i really dont know what im doin b/c im used to 2-stroke engines not this kinda stuff, can anyone tell me what i should take apart first to look at b4 i mess it more?

idk since its the rear end it might not be a gear thats chipped, like i said, idk what im doin right now, any hhelp would be great

thanks

 

Your post is confusing! You say "rear end", then you talk 2-stroke vs 4-stroke....so do you mean the rear end of the engine??? But to me, "rear end", means the back axle, sprocket, etc., which is similar no matter whether 2-stroke or 4-stroke.

So, please explain a little more. If it is the engine, park it before you do major damage!

 

see thats the thing, im about 90% sure its the rear axle, but im tryin to figure out what would be bouncing around back there and it still being able to run, i mean the sound is coming from the rear end, what could it be then?

 

i could be the swingarm cuz mine has a messed up swingarm bearing and it makes a popping noise when you go over things, but if its in the rear end id guess something gear wise cuz i wouldnt imagine the brake hub making a noise like that

 

Don't ride it! It is probably your rear axle bearings. Mine did the same thing, but out on a ride 50 miles from my truck in the desert, and I had to ride it home. Toasted the bearings, the carrier, and the axle. Cost me a bundle!

Is it hard to keep the chain in adjustment? Put the rear end up on a crate, and see if the axle has play in it or grinds when you turn it.

 

its the axle bearings i bet i now a lot of people that have had to replace them on their 400ex's

 

I have to replace them in my 450, they went a few weeks ago, I just received the new ones yesterday, I was gonna replace them today, but damn it's cold out side today, see what it's like tomorrow.

 

ok guys thx alot, im taking it to my schools ag shop tomorrow and we'll work on it then

 

Have you had it in the mud or a lot of wet lately?

 

yea, i took through a creek like a week ago or so, and a little bitof mud