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RM 125 pulse port

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hello, anyone ever install a pulse port on a Rm 125 crankcase?

I am using motor on kart and Im not sure where or how to install one for external fuel pump.

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I would think that the easiest place to install it would be in the cylinder just beyond the reed valve (away from the carb). If the cases are already split then the strongest signal would be in the crank area, someplace close to the crank centerline or maybe just above the magneto but right below the cylinder, that would put you right into the left port.

Where do they normally tap into?

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Hello, normally they tap into the lower case.

To avoid splitting case, I'm going to drill and tap into area just downstream of reed cage.

a reliable source advised me to tap into boot between carb and reeds, I dont see how it get the same pressure change as after reed cage.

Thanks ,and wish me luck.

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