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Need some help. Bought a used wheeler with a blown engine and it came with a spare (used) top end. The spare was a stock bore and only mildly scuffed so I cleaned it up and got a new Wiseco piston for it assuming they were the same. I rebuilt the entire engine and put it in the frame along with exhaust but when I got to the carb it didnt fit. The angle of the rubber boot was too high (see picture 1). After some digging I learned that the cylinder for the earlier 400L engines was slightly different. Early models had the carb boot face on the same plane as the surface for the upper mounting bolts. Newer cylinders had the carb boot face rotated down slightly so they are no longer on the same face. See picture 2 - this is actually a 99 cylinder. Compare to the red line in picture 1 and note how the red and green lines are different angles. I believe the cylinder that was on the unit when I bought it was the original 99 and the spare was from a 95 400L.
Does anyone know if I can use this head on my 99 Xplorer with a carb boot from a 95 era unit? It looks like it will correct the angle of the carb and allow it to fit, but the 95s seem to have had the 3 chain drive where mine has the prop shaft to the front. Im wondering if the different gearcases will prevent the carb from ever fitting quite right (doesnt sit on the rubber bumper or it interferes with it too much, etc)
Apr 19, 2022 | 09:09 AM
95 Xplorer Cylinder on 99 Xplorer
