Hello, I have a rattling noise in my engine when I accelerate and read on the forum that it sometimes the nut holding the flywheel (or maybe it was the balancer) came loose allowing the flywheel (or balancer) to rattle.

I looked at the parts fiche and saw the balancer but can not see it on the bike. Where exactly is it located?

I did not see the flywheel in the parts fiche, however, on the backside of the rotor that holds the magnets, there is a large 5/88" thick piece of steel that looks like the lightweight flywheels that Dave posted photos, so I am wondering if this piece is the flywheel?

There is also another 1/2" thick piece of metal behind the large starter gear, so I am wondering if this might be it?

Is there anyway to feel the flywheel to see if it is loose without removing the rotor?

Why does the marts fiche not show a flywheel?

Thanks for any info.

The flywheel is shown in the illustrated parts breakdown on the "starter clutch" illustration.  They're organized alphabetically.

Here you see the starter gear.  The flywheel is behind the starter gear.  The alternator rotor has been removed.

This is the balance shaft bolt.  It is located on the right side of the engine.  It's under the clutch cover, just below the oil filler cap.

DBM, your lore of these motors never ceases to amaze me.