just so you know there are no tappets, they use shim under buckets, and it sounds alot like piston slap on the video
98 R1 knocking engine
Just bought this bike, it's in very good nick, 100% original, about 40k miles.
I noticed when the engine is hot (afer about 15 mins of riding) it starts making a knocking sound from the top of the engine (at idle only). Also between 4-5000tpm between half and full throttle I can clearly hear the camshafts working. (like a strong growl, don't know if that's normal or not.)
I've looked all over the internet but can't really find anything that explains my situation properly, it could be the cams, pistons or even exhaust gasket leaks.
Here is a video I made of the noise:
Thanks in advance! :vanish
I noticed when the engine is hot (afer about 15 mins of riding) it starts making a knocking sound from the top of the engine (at idle only). Also between 4-5000tpm between half and full throttle I can clearly hear the camshafts working. (like a strong growl, don't know if that's normal or not.)
I've looked all over the internet but can't really find anything that explains my situation properly, it could be the cams, pistons or even exhaust gasket leaks.
Here is a video I made of the noise:
Thanks in advance! :vanish
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ok good point, i missed that part, can you take a long screw driver and place one end on different parts of the engine and the other end to your ear and try and pin point an area of the bike ie top end, cylinder, bottom end, left side, right side as to where the sound is originating? you said that it was a srtong growl, could be cam chain tension?
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