83 or 84 250r

[firebird13601]

whats the difference between the 83 and 84 250r? I just picked one up and i'm not sure if it's a 83 or 84

[Lots_Of_Nothing]

nothing at all big, the only thing i can think of is the rear shock linkage wich is interchangable with both years, there may be a few tiny little things, but nothing major at all, everything will swap with each year.

[erussell]

The 6th digit from the end of the VIN on a 1983 is a 2 and a 3 on a 1984. The shock linkage is different like 85ATC250r said and some factory items like the spark plug are different. Everything else is the same.

[firebird13601]

thanks for the help

[Wickedfinger]

Actually the motors are different. Honda revised the porting and modified the chamber to give the '84 pinger 7.3:1 compression from 6.7:1 on the '82/'83 motor and 6.6:1 on the '81. They switched from a recomended Std. BR8ES to a Champion QN2C. Some of the dimensions between the two differed as followed: *Overall length - '83 72.4", '84 73.0" *Overall width - '83 42.3", '84 43.1" *Overall height - '83 42.3", '84 42.9" *Wheelbase - '83 49.6", '84 50.2" *Seat height - '83 28.9", '84 29.1" *Footpeg height - '83 12.2", '84 12.6".

[Live4today]

Then can someone tell Howdy so he can redo the specifications on the specification pages. It says that the 83 and 84 are both 6.6:1 compression ratio.

[erussell]

The "specs" vary from Honda but I own a 1983 and a 1984 and if you measure from the same point on both I can't find a change. Maybe right out of the factory the 1984 ride height was set 0.6 " higher but they are the same dementions. As for the compession changes ever Honda veries in the same year. I have 2 1983 brochures and one says 7.3 and the other 6.7. Maybe they changed mid year I don't know.

[Wickedfinger]

.... all that info is direct from the factory shop manual.

[firebird13601]

thanks, that would make it a '83