At a glance
What can fail
The hand throttle cable can wear through the brass swivel block on the governor lever. Excessive wear may cause the cable to jam in the damaged swivel, preventing the governor lever from returning to idle.
What the fix does
The governor lever will be replaced with a revised version that has a stainless steel swivel instead of brass.
Summarized — see the official notice for exact wording, dates, and contacts.