Need Help Diagnose Paps. Ty.

[snipermxmalayaklan]

Last week, i changed my combi to 15-36 together with yamalube and new oil filter. After installation and 20 kms ride, there is a knocking engine sound some kind like a camshaft on a stock SMX. as i'm listening, seems not on top but at the bottom part of engine. is it possible that sprocket engine bearing needs replacement? valve clearance adjustment? or some other engine bearing?
I want to ask first for some assessment from our good paps there before going to yamaha for our yamaha shop here is 75 kms away from my home. tyia.

btw, no prob pertaining its performance, " only that sound i am worrying". And now i know that changing sprocket reduces fuel consumption as well. ty.

 

[turbulence]

when do you hear the knocking sound? idle or reving up

 

[snipermxmalayaklan]

when do you hear the knocking sound? idle or reving up

Same sound as stock cam paps. Either on idle or revving up. It's not that its going different sound when idle or in revving. Just a constant cam sound as loud as when my mx where stock only im hearing it at the bottom part of the engine, or is it i didn't know how to listen for im no mechanic paps. Ty.

 

[JapSpeed]

Same sound as stock cam paps. Either on idle or revving up. It's not that its going different sound when idle or in revving. Just a constant cam sound as loud as when my mx where stock only im hearing it at the bottom part of the engine, or is it i didn't know how to listen for im no mechanic paps. Ty.

i think it's just the valve clearance... matagal na cguro hindi na adjust..

 

[snipermxmalayaklan]

i think it's just the valve clearance... matagal na cguro hindi na adjust..

last i think it's last sept, 2014 paps. i use my mx only twice a week for 20 kms in per day. i hope so paps otherwise more "$ chiching $". ty.

 

[Dropper]

sometimes i experienced this too, knocking sound but on idle especially at cold start... after running a meters and the engine is hot its will gone.... maybe JapSpeed is right last adjusment of my valve is 12k odo and till now 31k odo no adjustment happen ^_^... and no drop of performance happened