A little precaution for anyone using the 50cc "Reo" accelerator pump on any kind of engine including those V things. They are thicker than the stock pump and as a result will hit against the intake manifold depending on the manifold.
On an Inline you usually don't have that problem if the carb is sideways. The pump hangs out there in mid air.
Easy enough to fix by using a 1/2 inch spacer under the carb to allow the linkage enough room to push the diaphragm without interference.
You'll also probably need longer carb mounting studs. On a street driven Inline I would use a 4 hole spacer with the 4 hole gaskets under the carb rather than an open spacer to help a little with keeping a strong vacuum signal to the venturis for good response.
