well, because it was suggested to me and I have the room for it. the wires for my starter button are tiny, like 22 awg or something.teazer said:Q: why the relay before the starter solenoid? The sloenoid is a heavy duty relay. You should not need a second one there. Use it instead just for the coils.
the exhaust will be pretty long - longer than scrambler exhaust - as it will go down around bottom of frame and up to the rear swingarmO2 sensors: It seems counter intuitive, but when the bike is running we know we can feel the pressure of exhaust coming out but what we don't feel is the fresh air pulsing back in. That's why short pipes show up as lean on the Lambda sensor and that's not accurate.
On one two stroke we tested on the dyno with a sniffer only part way into the tail pipe - it read lean even when it was clearly too rich. Mechanical baffles got in the way.