How similar are these engines? And what parts are or are not interchangeable?
I am always thinking of how I can improve my F250R for the trails (besides buying a 30# heavier F250X). Would the X trans be a no mod direct drop in for the R model? Does anyone have the ratio specs on both of these transmisions? Honda specs. just say wide or close ratio trans depending on the model.
3rd gear on both bikes become almost identical with stock gearing, the X is spread out before and after 3rd. Primary ratios differ. You can change the gears between them but it is a pain. adding 4,5th from the X to an R may help. I would like to add 1st and 2nd from the R to my X if the 1st gear main shaft will fit.
I got a hold of an X model parts manual and was able to view the microfiche for the R to make comparisons. It was interesting to see that the part numbers for the two models were very similar but different. I was able to calculate the ratios from the parts manuals.