[XB33BSA]

yeah rusty main bearings is the grumbling,the flyeheel you can yank on it and get movement money i would bet on that
loose piston and or wrist pin the higher pitch
i have a parts bike it may have a good crank at any rate the engine will ship pretty cheap let me know i can verify to an extent condition
on another noise note a loose fitting header pipe at the spigot with loose springs can bang out a racket as well

 

[XB33BSA]

So I purchased this helmet off eBay for $20 shipped to my door.

The reason I purchased a 3/4 helmet is I have a lot of paint left over so I was thinking of spraying my helmet to match the bike. I purchased a white one so I can tape off the lines. This helmet is a cheap one......more than I thought it would be. It makes me want to go try on a Bell or something as this XXL still seams a little small. The padding on the sides are minimal............but for a helmet to throw on the mirror and "pose" at the local shows was really my intention so I might just make it work. Over the years I've received gifts helmet related and one of them is a pair of Dues Ex Machina goggles that I was going to wear when using this helmet but with the way it squeezes my face.........I may be tempted to get a bubble sheild.

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get ya some scott series 89 goggles they fit really well in a hellmet,dont buy any extra lenses i have 50 of them lexan clear and smoke all new ,cheap
you can get them without the goofy grill up top and the nose mask