Cfmoto 500

[Streetstock71]

I’ve started to have a grinding noise on my 2016 cfmoto 500 short wheel base non power steering model ,very loud and noticeable when letting off the gas and letting it decelerate.

it runs fine under throttle like going up the trails only coming down does it happen. 
It’s in gear whether high or low and the light is on showing which gear it is in and it is fully engaged .

any info would be appreciated !!

thanl you 

Edited October 24, 2022 by Streetstock71
Misprint

[Mech]

I've read a few cases of the diffs playing up, and diffs are a bit famous for making noises on the over-run.

You could check all the trans and diff oils for signs of metal..  Probably just course dust/flakes. Very fine mist of metallic dust is normal, flakes or obvious metal particles.. not so.

 

[Streetstock71]

Thank you I’ll check them out.

[Gwbarm]

Sounds like it might be low of fluid ,  noise coming from front back or engine area.

[Streetstock71]

It sounds like it’s coming from more towards the front area underneath.

12 minutes ago, Gwbarm said:

Sounds like it might be low of fluid ,  noise coming from front back or engine area.

Sounds like is coming more towards the front just in front of where I sit but from the underneath 

[Mech]

Have you tried jacking the front up and turning the wheels, and driveshaft if possible, feeling for roughness, clunking, or movement. Try turning it backwards and forwards, and while it's up look for anything that looks like it could have been rubbing..