Is Stihl Quality Slipping? 4-mix Engine Repair, Stihl KM 90R.

Video Description

My Stihl KM-90r quit running right, and the fix turned out to be pretty interesting. Topdon thermal imager: https://www.amazon.com/promocode/A1Q4T1A9H9BDHA 5% promo code：05FarmCraft1 Valid until 06/06/2023 The Topdon thermal imager is also quite interesting and useful. MERCH!: https://www.farmcraft101.com Patreon: https://www.patreon.com/FarmCraft101 Amazon Affiliate Storefront: https://www.amazon.com/shop/farmcraft101 Buy me a coffee: https://www.buymeacoffee.com/farmcraft101 Facebook: https://www.facebook.com/FarmCraft101/ Evolution power tools affiliate link: (promo code: Farmcraft) http://aspireiq.go2cloud.org/aff_c?offer_id=5959&aff_id=16043 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