Sheng Wey PZ30>Nibbi PE28FL

bigdano711 · 10-24-2024, 03:45 PM

After the better part of a year fiddling with that damn Nibbi, I have finally given up on it. Putting the Keihin clone JJH needle in it seemed to help, but was probably a mistake in the end. The final straw was realizing it had been dumping fuel down the intake and mixing with the oil. The whole time. Before I put the JJH needle in it.

So, I decided a Mikuni VM26 clone was the answer. Ordered it, received it, installed it, ran it, it's too rich and needs a Pilot jet change. Had to order pilot jets. While waiting for those to come in, I remembered my old stock PZ30 and said what the heck, down-time sucks, so I pulled it out and decided to see if the JJH would fit. It does...perfectly.

Ran it, mid-range too fat, pulled the needle and leaned it one notch. She's running better than she EVER did with that Nibbi. It's always idled perfectly, so no need to mess with the air/fuel mixture screw. I set it to 1.5 turns out and never looked back. I can crack the throttle hard and she responds, no bogging or dying out.

Not sure if I'll ever install that Mikuni. I was WRONG about the PZ30 and I apologize.

10-24-2024, 03:45 PM	#1
bigdano711 Join Date: Jun 2023 Location: Big Piney, WY Posts: 617	Sheng Wey PZ30>Nibbi PE28FL After the better part of a year fiddling with that damn Nibbi, I have finally given up on it. Putting the Keihin clone JJH needle in it seemed to help, but was probably a mistake in the end. The final straw was realizing it had been dumping fuel down the intake and mixing with the oil. The whole time. Before I put the JJH needle in it. So, I decided a Mikuni VM26 clone was the answer. Ordered it, received it, installed it, ran it, it's too rich and needs a Pilot jet change. Had to order pilot jets. While waiting for those to come in, I remembered my old stock PZ30 and said what the heck, down-time sucks, so I pulled it out and decided to see if the JJH would fit. It does...perfectly. Ran it, mid-range too fat, pulled the needle and leaned it one notch. She's running better than she EVER did with that Nibbi. It's always idled perfectly, so no need to mess with the air/fuel mixture screw. I set it to 1.5 turns out and never looked back. I can crack the throttle hard and she responds, no bogging or dying out. Not sure if I'll ever install that Mikuni. I was WRONG about the PZ30 and I apologize. __________________ 2023 Hawk 250 from XPRO off of Amazon MOUNTAIN MAN RC + MOTO on YouTube "If there were more bloody noses, there would be less wars." - Hagbard Celine John 2:15 So He made a whip out of cords and drove all from the temple area, both sheep and cattle; He scattered the coins of the money changers and overturned their tables.
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