Econo gauge.... With bike carbs, help please!

[tattooer]

Where would I have to attach the vacuumed line from? I was thinking between the carb and engine, on the manifold its self where the brake vacuumed line takes off? Or is that not correct?

[Logan360]

Can't give you a specific on the carbed motor's but i is definitely a manifold mount and probably by it self is best.

[classicswede]

It does need to go into the manifold runners, best keep it away from the servo pipe. As the manifold will have no common area to get an acurate reading link 2 cylinders togther for a more stable suction.