Hi Furter, and a warm welcome to the forum. It's always great to have another Scott Bonnar owner on board. grin
I suspect that your machine is also a Rover/Scott Bonnar due to the solid green paint scheme and a fairly late one at that with the Briggs being manufactured in 1990.
They are a strong mower that if well maintained, will give you hours of mowing pleasure. I see that grumpy is giving you excellent advice so that you will soon have your machine in tip-top condition. wink
Once again, :welcome:
cheers2

Please do not PM me asking for support. Please post your questions in the appropriate forums, as the replies it may receive may help all members, not just the individual member.
Kindest Regards, Darryl grin