Honda NSR 250.

[Dafe]

Does anybody know much about 2-strokes 250's?

I've been looking at the following one on the trademe site: Auction 59820578
http://www.trademe.co.nz/Browse/List...px?id=59820578

It has low-ish K's but it does have a history.
The engine was seized twice previously. The second time straight after the rebuild when the oil line wasn't reconnected.
Engine has again been rebuilt and bike running fine for the last four months.

Can this machine be considered poked now? Once it's had a history of seizing engines, will it always have problems?

I'd appreciate any help and any advice you can offer. Am looking for a fun bike to thrash at the track and just in general.

[sAsLEX]

2 strokes commonly seize after a rebuild, then you remove the high spot repeat etc a way to tune performance 2 strokes

[Mr. Peanut]

You've got awesome taste.

Hang out for an MC21. Theyre not considerably more expensive and far more popular.

[kickingzebra]

NSRs are great, my one only died after about 60 000 kms of thrashing, so, yeah, rebuild it if it is cheap

[imdying]

2 strokes commonly seize after a rebuild, then you remove the high spot repeat etc a way to tune performance 2 strokes

Not in a nicasil plated bore road bike. 2 strokes do not commonly seize after a rebuild.

[Paulus]

As said above it has nikasil plated cylinders so you would need to know that these weren't damaged in the seize. NSR cranks aren't rebuildable due to Honda using some weird bearing and are horribly expensive (if you can still get them). The motors perform well if they have been derestricted (ignition unit, pipe and carb mods) but are pretty gutless stock. Uses as much gas as a 1000cc bike too (didn't used to be a problem but these days...). Not a lot of use in summer traffic due to no fan and a tendency to foul the plugs when lugged around (not this bikes forte obviously). Great bike for blasting through the twisties though and if I could find another mint, low mileage one I'd be tempted to own one again.

PS: Also that's an 89 model (RK) on trademe not a 90 as he claims (in case it matters).