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This engine is now available with the option to add a +1mm stroke crankshaft to increase the displacement to 47cc
The development of this case took several months
You're not going to bolt this case onto a stock engine and turn it into a full mod or anything but you will see a noticeable difference in power
This was our first choice due to the one piece crankshaft and the fact that this bottom end utilizes both needle and sealed crankcase bearings
Just like our other cases we went with a 3 piece design
1807 - Walbro Wt-1242A High Performance Carb W/DUST SEAL (Standard & Bored Version) This engine is now availableFrom this point forward the WT 1242 has been replaced with the WT 1242A. The new version has a dust seal installed on both ends of the throttle shaft to prevent wear and air leaks in dusty conditions. The bottom gasket material has been changed and the debris screen. Lastly the recirculation valve has been updated. We will post pictures and more info of the changes ASAP. We're proud to announce the release of the OBR exclusive Wt 1242 carb! This is a
