My Stihl KM90r quit running right, and the fix turned out to be pretty interesting.

Topdon thermal imager: https://www.amazon.com/promocode/A1Q4...
5% promo code05FarmCraft1
Valid until 06/06/2023

The Topdon thermal imager is also quite interesting and useful.

MERCH!:
https://www.farmcraft101.com
Patreon:
  / farmcraft101  
Amazon Affiliate Storefront:
https://www.amazon.com/shop/farmcraft101
Buy me a coffee:
https://www.buymeacoffee.com/farmcraf...
Facebook:
  / farmcraft101  
Evolution power tools affiliate link: (promo code: Farmcraft)
http://aspireiq.go2cloud.org/aff_c?of...
Save 5% for yourself and also help out the channel. Thanks!


00:00 Intro & what’s wrong
2:56 Troubleshooting fuel, spark
4:40 Carb removal
6:47 Check valves & exhaust
9:20 Cam gear & timing
12:56 Topdon thermal imager
15:50 Continue teardown
18:41 Inspect cam gear & how it lubricates
21:00 Clean valves and why it failed
24:18 Fix clutch
27:15 Meanwhile…
27:51 Reassembly
30:48 New cam gear
34:28 Compression release
37:01 Adjust valves
38:45 Complete assembly & testing
40:29 Adjust carb
43:05 Opinion on Stihl
44:47 Outro