So I just got this Mikuni 44PHH. What goes on these fittings?



And what will these hoses got o with the new setup?

 

I have the same setup...not mounted yet. I would like to know the same thing? The omp lines connect to the ones right behind the butterflies. The other ones I have no clue.

 

those fittings above are pre-throttle plate vacuum sources...
and those "hoses" are oil metering pump lines, you need those. They can be attached to those fittings (they go to a pre throttle-plate vacuum source).

 

Hoses go to lower fittings on the mikuni, for the oil injection. Upper fitting on the right side of the carb might be a fuel return, but I'm not sure on that one, the upper left looks like it could be a vacuum line. If so, plug your distributor hoses into that with a T fitting.

 

The fuel lines connect o n the opposte side of the carb. I figured the hoses were for oil. You sure they go on the lower fittings? The top fittings both go into that actuator/solenoid in the middle. I suppose it doesn't matter which tube goes to which of the two oil fittings.

 

bump

 

In the 1st pic.

the top tubes MUST be open vented, these are NOT vaccum sources... leave them OPEN or else.. very bad things happen


the lower 2 are for OMP lines, if you pre-mix, these must be capped...


the stock OMP lines should be long enough..

otherwise I have used weed-eater fuel line to re-plumb these.
when not using pre-mix.

there is an OMP actuator rod with arm avalable. for side-draft carbs, but I would not suggest its use, it gives more restriction to the throttle plates... which in turn neg. affects the throttle responce.


I've been playing with these crazy Mikunis for a while, keep the Q's coming..