Guessing this isn't good?!?!

Golfnut721
Posts
39
Joined
8/31/2024
Location
HELTONVILLE, IN, USA

Guessing something to do with a connecting rod. 2024 kx450 under 20hrs.

IMG 2878 0 0.jpeg?VersionId=oQYTFal4lpP95W

 

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Nairb#70
Posts
4318
Joined
2/25/2020
Location
Ivoryton, CT, USA
11/16/2025 5:42pm

Looks like the crumbs of a bronze or copper bushing or washer.

11/16/2025 8:25pm

Check inside pleats of oil filter.

Unfortunately yes, classic signs of rod bearing failure. 

If bike sits for any amount of time, I tell riders to crank over with kill switch depressed for a good 5 seconds before starting. 

It builds oil pressure. Easier on plain bearings over a dry start

2
EAmato88
Posts
621
Joined
1/23/2019
Location
Egg Harbor City, NJ, USA
11/17/2025 4:04am

Yes, 100% rod bearing

sandman768
Posts
8270
Joined
3/21/2014
Location
Saratoga Springs, NY, USA
11/17/2025 5:40am

For sale: kx450 low hrs runs good…..

1

The Shop

Golfnut721
Posts
39
Joined
8/31/2024
Location
HELTONVILLE, IN, USA
11/17/2025 5:47am
sandman768 wrote:

For sale: kx450 low hrs runs good…..

Runs goodish?!?

wrc777
Posts
3249
Joined
5/21/2020
Location
Greenwood, IN, USA
Fantasy
11/17/2025 6:26am

Better to catch it now than after it goes through the  bottom of the cases. 

3

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