32 views | How-to | 4stroke

First Microsquirt test on the Aixro XR50 with methanol, running rich for now to stay safe, using a Keihin 43mm throttle body and 58psi fuel pressure, brakes locked so the engine cannot free rev. The AFR gauge reads as if it were gasoline so divide those values by 2.29 for methanol AFR; stoic for methanol is 6.4 which would read as 14.7 on the gauge. The wiring is a mess with a lot of cleanup and quite a few temporary connections still to replace.

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