KTM 250 SXF 2015 noisy motor

munch
Posts
48
Joined
5/4/2014
Location
GB
8/13/2020 10:36am
Video - https://www.youtube.com/watch?v=AuJawMs8UqY&feature=youtu.be

On idle the motor sounds normal but once the throttle is opened it makes a loud noise, it sounds top end but I've had a quick look and can't see anything obvious. Bike has a manual tensioner installed, no signs of worn chain, guides or oil starvation.

Any ideas before I go further into the motor?
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Factor E
Posts
726
Joined
9/22/2011
Location
So Cal, CA US
8/13/2020 10:54am
How many hrs?
Factor E
Posts
726
Joined
9/22/2011
Location
So Cal, CA US
8/13/2020 11:04am
Ck valve clearences
munch
Posts
48
Joined
5/4/2014
Location
GB
8/13/2020 11:37am
Just stripped the motor, crank is partially seized. New rod and it should be good to go.

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