[kz1000st]

Almost all of the rotting hose stories were written back in 2005. By 2008 the dealers were supplying decent tubing. After that hose changing was optional or at least a peace of mind gesture. Heck, I have the original tire valves and they're looking like brand new.

If the scooter is prepped well and used sensibly it won't crap out. In that vein, soft break in should be with varied rpm and the speed kept at or below 40 mph for at least 500 miles. Even after that these things are not meant for wide open running. They're just not built for it. I keep my 150 at or below 45 mph. Neither the materials or cooling system are built for flogging.

I can tell you this, used with restraint you will not believe how these GY6 engines get better with miles. My 150 is completely different at 8,000+ miles than it was at 1,000. It gets stronger, looser and more responsive with age.