Model year differences

[Takehiko]

Anyone know if there's any differences between the different year's Hawks? Like is '88 any different than '90?

Thanks!

[jhord]

Originally Posted by Takehiko

Anyone know if there's any differences between the different year's Hawks? Like is '88 any different than '90?

Thanks!

The differences are very very minor between 88-90. Just a couple of little things like the way the oil line to the heads mounts, the seal retainer for the countershaft/shift shaft, etc. The 91 had a bit different engine. Internally oiled heads, oil pressure was routed up thru the cylinders instead of an external line. Also the intake ports on the 91 are slightly different, but there is no performance gain.