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Originally Posted by China Rider 27
I put a PE 28 on my HAWK last fall. I could not believe the manifold issues. I must have bought 6 manifolds and none of them would work.
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Quote:
Originally Posted by Dusman
Fitment issues with an intake manifold are what have kept me from using a Nibbi thus far. Now, problem solved!
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The fitment issues were honestly the most frustrating part. I was getting to the point of wanting to 3d print an adapter for a straight socket, but even that would have had issues unless I angled it right. Then there was always the potential issues of long term degradation of fuel and heat on said plastic. I also probably bought 6 intakes trying to get other carbs to fit. The best one I came up with was the CQR intake, but it was also the longest of the bunch, so it positioned the carb far enough out to cause interference issues with the tank and throttle cable. I never could win.
Quote:
Originally Posted by Thumper
From what I have seen in videos, the NIBBI PE series seem to have the pilot and main jets in the same position in the carb body as the PZ30. But I DON"T see a pilot adjustment screw 
And exactly what is that choke plunger doing down in there? I wonder how that works for enrichment. One of those side ports? Well, no butterfly valve for choke is definitely better for smoother air flow through the carb body. That's excellent.
The big knurled wheel on the slide column will make idle adjustment EASY (slide height)! That is nice. And it comes with a manual/setup guide. How unique  Most clones arrive with no documentation (after all...doesn't everyone already know how to jet/adjust a carb, well, no!)
I think the NIBBI takes a Keihin needle so you can select different tapers, and set needle with the circlamp and fine adjust with washers (NICE!).
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As Jerry said, the idle mixture screw is on the side of the carb, and unlike the PWK carbs, the RIGHT side of the bike, so it is super easy to adjust. No more burning hands, special wonky tools, or having to remove the carburetor.
The choke plunger is just an enrichment circuit. You pull it open and the vacuum difference draws fuel up from the bowl. About as simple as it gets.
Yes, the big idle speed adjustment knob is the other great feature of this carb. That is one thing about the stock carb they got right too. It's easy to find with gloves on and no need to fiddle with a screwdriver.
The Nibbi carbs also do take Keihin needles if needed. I found the one in the PE30 actually worked ok so I never had to change it, but real PE needle options also work on these. These are higher quality clones.