Drakensberg Lawn
Member
- Joined
- Jan 20, 2021
- Threads
- 2
- Messages
- 11
Hi. I have a Stihl Fs450 brush cutter I'm busy repairing. I did a full service on it and also replaced a few parts that was damaged. When I was busy fine tuning it at a certain point it makes a hollow sound when I open the throttle before picking up revs. What can be the cause? And also when running at full throttle it almost sound like it is over revving but according to the Rev count its still below its normal operating revs.