Yep, that's a very normal amount of bits of the case sealer used when assembling the engine. Actually, I'd consider that a pretty light harvest -- a bit less than what I've seen in other engines.
Don't worry about it for one second.
OK, if the penny came from inside the engine that would be a little strange... I'd expect a 1 yen coin.
2002 Suzuki DL1000 V-Strom, Dark Metallic Space Blue
1983 Suzuki GS850G, Cosmic Blue
2005 KLR685, Aztec Red - Turd II.2, the ReReTurdening
Last edited by bwringer; 09-23-2017 at 02:02 PM.