How long do the engines last? I got 70k miles.

[Firehawk068]

I have roughly 150,000 miles on my '90 FJ1200.
I have taken care of it as far as maintenance goes, but I can't say I have been easy on it.......................It has even been upside-down at least once.................possibly twice. 

And Lee gave you the story of his FJ1100....................It has over 220,000 miles on it.
It still starts right up, and runs like it should.

These engines aren't what I would consider "High-Compression" engines, and they were pretty over-built in their design.

Be diligent about your oil-changes, and keep current on the valve-clearances and you shouldn't have any issues running these engines up to red-line whenever you get the chance.