2000 Honda Foreman help

[OleDan]

Hi im new here and need some help.

we have a 2000 Honda 450 Foreman and it gets used almost everyday. Im a trapper so i use it everymorning to check traps. we take it mudding and climbing and everything. it gets used like a work horse. well its run fine up untill the last week or so. we just snorkelled it and i wanted to see how itd run so i was driving it around and all of a sudden heard this loud popping noise and it wouldnt move anymore. you can spin the tires and its smooth but when its in gear it starts to knock. me and my dad took the whole rearend of tonight thinking it could be some of the gears in the rearend but theyre all completely fine. so my question is do yall have any idea on what could be wrong with it? thank you so much or any help

[marioweldinginc]

are you sure the noise is coming from the rear and not the transmission? Im not familiar with the foreman but does it have a driveshaft instead of a chain? If so maybe its the universal joints on the driveshaft. They went bad on my Yamaha Moto4 and it was a loud metallic pop every few seconds but only when in gear. when it was in neutral and on jackstands no noise.

[N2ATRX]

the noise you described might have something to do with the snorkel , that is if you never herd the noise be for you added the snorkel. ive herd a popping noise twice . first time i herd a noise like that was from abuddies rubicon after he wrecked it hard. it was the front end some were in the drive line was popping when he turned the wheels. but that wasnt hard to figure out cause the whole front end was completly trashed on the count of him running his 4wheeler of the end of a train trussel . the other time i herd popping was from my friends foreman when he was trying to make his own exhaust, and that was because he had to much back pressure from running to small exhaust , which resulted was major engine failure , threw the rod out the bottom of block and then some. maybe that snorkel is to restrictive cause n some kind of detonation issues , are you shur its a pop not a rod knocking?