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They seem to update after 3 model years, with 2021 being the third year. The 19+ are so good that I’m really not sure what they could do to make them better. Love my 19 FC350.

Its the push rod, bring up the parts fiche its part 13116. Its happened on the past kawi 450 since 2014. If you ride hard the end of the pushrod expands and doesn't get oil flow and whines a bit. It doesn't hurt anything. Run more oil like someone said or you can take it to a machine shop and taper the ends. theres a write up on the net. If your worried I can try and get the modification email. Cheers

It’s the clutch. Mine did same thing. Replaced it with a rekluse

I've been slowly picking up a few more trick parts for my bike. It's winter here so I won't be able to test anything until spring. I'm having racetech completely set up the forks and shock with gold vavles. I wanted to add a little more green to the set up so I ordered a Pro Curcuit Bladder kit to have them install while doing the suspension. We are also having the spring powder coated before taking the suspension in. Picked up the Ride Engineering Link as well after hearing the benefits on Keefer's podcast.

This is what the factory’s kawis look like with the re enforced subframes. This is the best pics I could find.