intake manifolds

[wataboy]

Good people,

Trying to find out any difference in intake manifolds between the carbed 750 and 900. I've heard the 750's are longer than the 900's or vice-versa. Ebay sellers tend to lump all these together as: "750SS/900SS/ 900SS/SP / Monster 750/900". I need a set with the double vacuum outlets to send with my heads for port matching and just want to make sure I get the correct ones. Bike is a '98 M900.

PS, if anybody's got a set to part with that'll work with please pm.

Thanks,

[Speeddog]

Yes, the 750 (more correctly, small case motors 400-750) are a bit longer, as the intake ports are a bit closer to the crankcase.

AFAIK, all carbie manifolds have the double vacuum ports.

[Duck-Stew]

There were some which only had 1 vacuum port on them but I don't know which bike got which.

You could always drill & tap them....

[koko64]

You only want one for the vacuum fuel pump and not run the vacuum tap, so one will do. Maybe two vacuum ports came with the advent of vacuum taps?

[brad black]

the 900 manifolds have a bend in them just out from the head to lower the carb spigot, whereas the 400 - 750 manifolds come straight out of the head.