Yes, bike is all original in the engine
Im starting to put it back together and see if it will still make the growl noise. Clutch plares all looked good. But i want to get a new clutch cable and clutch cable adjuster
 
b4 tearing apart the back of the motor apart check the easy stuff first.
i would check out the final drive
put in neutral and rotate the wheel, check final drive (it can be black without problem) fluid and the little magnet for metal.
maybe run it in 2nd gear off the ground
Talked to a mechanic and he suggested to keep a eye on it and if a new cable and cable adjuster keeps it from moving keep on riding.
When im on the throttle i dont hear it anyway
 
Can't think of a good thread off hand, but from memory the bearing on the torsional damper was installed backwards from factory. So the oil couldn't get into it to lube it.
If you do a search for output or torsional damper bearing you should find info.
There's an update kit you can buy but it's only really the bearing you need iirc.
I did my 06 engine a good few years ago, would have to dig through detailed files.

Before going any further would you be able to determine if the noise is from the front or back of the engine?
Presume it's on the left side anyway. Tha's clutch (front), trans (middle) and torsional damper output (rear).
It sounds like the front of the engine. Im putting it back together ,with a new cable and adjuster. With a fresh oil change.
 
I haven't found any thing suspicious in the oil or in the bottom of the front cover. Is there anywhere else to look for fileings or pieces of metal?
I just want to thank everyone for your suggestion.
Cliff
 
The oil filter media and the 2 strainers on the sump floor.

It could be the clutch pressure plate bearing. Rare but have seen them go.
You want to spin the plate on the bearing on your finger and you will hear/feel a roughness or grittiness if it's going.
 
Lifter piece is #24 on photo, once you torque plate screws that lifter piece has to be free spinning and in/out 2 to 3mm of free travel, if not, bike will creep forward with clutch lever pulled in. If the lifter piece is tight, undo clutch parts and re assemble making sure no extra judders or anything out of place, the washers the wavy washer, if you used suzuki or barnett stuff the pack is a little bigger and affects that lifter piece, you can do away with the washer at pressure plate and lifter piece, but the lifter piece is critical. I see supercharged so you probably already use the 50mm long basket bolts.
 

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