2014 KTM 690 clunking noise when decelerating...?

[Incredible Pigeon]

Hey guys.

So when laying of throttle or coasting there is a rattling or clunking noise around the left hand side of the engine. I checked the drive chain and the tension seems fine...

When I pull the clutch it disappears,... It sounds like a loose cam/timing chain?

My bike has 27000km on it.


However, I can't hear anything on idle, even when reving in neutral it seems fine..

Any suggestions??

[Amsterdam]

Take off the chain cover and have a good look at your front sprocket.  I had a similar case recently and it turned out the front sprocket was badly worn.  And that was despite replacing both sprockets and chain at the same time.  Poor quality sprocket I presume.

[Incredible Pigeon]

Hey Amsterdam,

I'm not to sure... have a look at the photo below and let me know what you think...?

[Manic]

is dit nie die chain wat op swing arm slaan nie.

Die 990 asook 1190/1290 is lief om dit te doen veral as jy throttle toemaak.

[Amsterdam]

Hey Amsterdam,

I'm not to sure... have a look at the photo below and let me know what you think...?

No problem with that one.

[Bommelina]

Could be the chain as per 'Manic's' reply.
Had the same thing noise on the PitBike that disappeared after I checked the chain tension.

hh

[BuRP]

I'm genuinely amazed to see that some ride with a cliplink on a bike, any bike in fact but especially one which sees dirt.
I "demand" a swaged link, nothing less.
Besides, never had the need to take a chain off before replacing it.
What opinions live out there on this?

[Incredible Pigeon]

Looks like is was the chain....when I first checked it I was to stupid the realise the bike should be in neutral as the slack accumulated on top of the swingarm.

Guess it's a reasonable rookie mistake....

Thanks guys!!

[Amsterdam]

I must admit that I had not considered that as an option. Glad you sorted it out.