Welcome.
I took it easy for the first 500 miles as per the owners book instructions, no rev counter but never used more than 1/2 throttle for the first 400 miles, this can be anything from 60 - 70 mph depending on conditions so its not that bad. Up to 500 miles I gave it a bit more, and after the 500 mile service a bit more. Now have 750 miles and everything is fine, using just over 1/2 throttle more or less and up to 80mph for short times. These engines are not like your jap 600cc where all the useable power is well up the rev range, they are quite torqey low down so running is is not so bad.
Main advice would be.
1 Allow the engine to warm up before use.
2 Dont let the engine labour in to high a gear.
3 Avoid constant engine speeds ( stick to B roads ).
I should add I removed the Air injection first thing and chrome on pipes is fine.
