No clue, but it does seem like there are a hell of a lot of them considering they only made them for 4 years. There is a lot of atc250r's out there too and they only made the watercooled ones in 85 and 86.
Probably the reason sales dropped off after the 86 model, those that bought them were more than likely good riders, or at least thought they were & that new 250R 2 stroke handed them their hind parts.
After that, this one talking to another & so on & those that were thinking of getting one decided not to.
Funny how a little ol 2 stroke engine can spank a grown mans tail I know that banshee I had with the RZ top end on did me, spanked my tail & give me hand full of change B)
I don't think honda is selling ANY 2 strokes in 08. I would have loved to see it if, honda released a trx250r with a modern cr250r engine design(w/ counter balancer) or even a cr500 counter balanced engine. Unfortunity, they only way to save the 2 strokes now, is ONLY FOR CLOSED COUSRE COMPETITION, I don't see honda selling a quad with that in mind.
Honda's goal is to phase out 2-stroke production entirely, which means that it's a matter of time before they force us into 4-stroke by stopping production of replacement parts.
As far as the numbers of production, what happened is that they overproduced in 86 - the price was $2300ish, 87's didn't sell as much because there were still so many of the 86's. They made changes for 88 and sold a lot again but the price was up to $3800ish. The lawsuit happened and they almost didn't produce the 89. The Lawsuit drove up prices to $4200ish and production numbers down. Most people didn't buy 89's because the 88's were virtually the same and $500ish cheaper. I've heard of some 89's not being sold until 93.
I would love to see a new 2-stroke quad - nothing like today's 2-stroke bikes with their mapping but a modern hi-tech 2-stroke like the BRP 2-tec's. That would be awesome.