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Engine & Transmission / Engine RPM Range
« on: December 22, 2014, 09:44:22 AM »
Does anyone know what the normal rpm operating range of a stock Simplex model M 125cc engine is?
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Engine & Transmission / Tillotson Carb Adjustment
« on: December 19, 2014, 02:25:02 PM »
While similar, the procedure for adjusting a Tillotson carburetor varies slightly from the Simplex Automatic Owner's Manual of Operation and Maintenance to the Tillotson Manufacturing Company, Original Carburetor Equipment List Manual. The main difference is the sequence for adjusting the Idle Speed Screw and High Speed Mixture Screw, and the throttle position during adjustment of the high speed screw. Which procedure do the majority of you owners follow?
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What Year is my Bike? / Determing year by recognition?
« on: October 26, 2013, 02:19:47 PM »
Is there a way to visually determine the Simplex year of manufacture? I was told by the seller the bike was a 1954 model however according to the registry listing the frame number appears to be within the 1956 range. I am in the process of applying for a title as I purchased the bike with a bill of sale and the year of manufacture is important. The stop light switch is on the right side top of frame and I believe I read somewhere in the forum that is a characteristic of a 1956 model. Was that the only year, or at least the first, for the switches location?
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