1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Mikuni 44 phh questions

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Old 03-25-17, 10:12 PM
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Mikuni 44 phh questions

I'm about to install one of these and I had a few questions. What are the two holes on the manifold for? It's the same sidedraft manifold for webers, I know one is for the brake booster, but what about the other? I'm also very confused about the crankcase ventilation. Where does it go, could that other hole be for it? Thanks.


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Old 03-26-17, 09:23 AM
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RX for fun

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one for brake booster. plug on the other. no need for crankcase ventilation and leave the diaprams on the dizzy open
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Old 03-26-17, 11:02 AM
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Yes, you can pull the plug out and run your center iron vent to that plug location. You will need crankcase ventilation unless you really like lung butter.
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Old 03-26-17, 05:08 PM
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Well I started taking the Nikki carb off and the rats nest. I see that the charcoal canister goes to a line on the center iron. Is that the ventilation line? Because Im just gonna leave the canister there. Also there's a line from the oil filler neck to the rats nest, what's this for? Should I just plug it up?
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Old 04-04-17, 01:15 AM
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Well I've got it mounted up and figured out for the most part. The mikuni I got actually has OMP fittings, but I'm not really sure how to attach the rod going to the omp, it's not long enough. What should I use, I was thinking just making a new rod or something.
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Old 04-04-17, 08:03 AM
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Waffles - hmmm good

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Hanger wire can be used to make a new rod.
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Old 04-04-17, 10:33 AM
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Originally Posted by t_g_farrell
Hanger wire can be used to make a new rod.
Okay, sounds good. How do I know its getting the correct amount of oil? I'm guessing with the throttle wide open, the OMP is too. Thanks.
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Old 04-05-17, 09:16 AM
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The FSM documents how much it should flow at idle and I think at WOT as well. Measuring idle is easy.
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