04-23-2022, 09:17 AM | #166 |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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That’s what I’m starting to think honestly. Gonna start digging into it again here shortly. Gotta get some more coffee in me.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-23-2022, 10:15 AM | #167 | |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Quote:
20-80% throttle is good but not great so the needle clip in position 1 out of 5 seems to still be okay but may need to change. 80-Full throttle is great so the 130 Main seems to still be a good Main to stick with. I do have a 100, 105, 108, 110, 115, 120, 125, 135, and 140 if I need to make any changes but I hope I don’t have to. Idle-20% throttle cuts out and dies or starts to die so I’m thinking the 32 Pilot is too small. Next sizes up I have are 35, 38, 40, 42, 45, 48, 50, 52, and 55. I’m beginning to get to the point after a week of messing with it now that I’ll just go back to the stock carb and deal with the struggle of doing only 55mph as my max speed and absolutely terrible acceleration uphill. The jetting and tuning is just driving me nuts, I’ve never had issues like this with a carburetor before whether it was stock or upgraded.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-23-2022, 12:05 PM | #168 |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Went through and tried every single possible combination with the jets I have, the 5 needle clip positions, 1/8 turn adjustments on the idle, and 1/8 turn adjustments on the air/fuel screw. No matter what I do it’s either too lean, too rich, or has a 4,000 to 6,000 RPM idle.
I’m going to have to go back to the stock carb and live with it until I can get my hands on a different carburetor, this Nibbi PE28FL isn’t going to work.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-23-2022, 04:25 PM | #169 |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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I apologize for so many updates to this thread.
Came back to it because it was driving me nuts. Ended up going with the clip in the number 2 spot on the needle, a 130 Main, a 32 Pilot, and a lot of tuning. Still bogged until I put the stock exhaust back on. Running smooth now, power comes on quick, revs higher, but my idle is a little high at around 4,000 RPM on cold start then drops to about 2,500 RPM after it’s warmed up. Probably will have an actual shop fine tune it while I’m on vacation in Arizona in a couple weeks but I can live with it for now. Definitely will need to invest in the oil cooler as well.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-23-2022, 04:45 PM | #170 |
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,707
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Everything you are discribing are signs of a slide not fully seated at idle. Please confirm that the slide is closed completely at idle. Make sure the slide is not turned 180° . If not the slide will not close completely. You don't know how many on here that have done that. Make sure the cable is fully inserted at the top of the carb. Adjust the cable so I here is some slight slack. The big knob on the side is for idle speed only. It doesn't have anything to do with full mixture. Turn it counterclockwise to lower idle. Until you have it idling at around 1500 rpms you are waisting your time trying to tune your idle mixture. The idle mixture screw will be the smaller screw just to the left of the idle speed screw. This adjust the amount of air and no fuel. The more turns out the leaner it will be.
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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04-24-2022, 05:39 PM | #171 | |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Quote:
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-26-2022, 06:13 PM | #172 | |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Quote:
Any idea where to get a couple replacements?
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-26-2022, 08:32 PM | #173 |
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,707
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Well that would explain a lot. No wonder it was reving up. I think Venom has the solid aluminum intakes to replace the rubber intake. They had issues with them splitting.
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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04-26-2022, 08:53 PM | #174 | |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Quote:
Next will be some Dunlop Q3 Plus tires, stock tires don't have enough grip or lean angle for me.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-27-2022, 07:53 AM | #175 | |
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,707
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Quote:
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2024 Linhai 300 ATV 4x4 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S (Sold) 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel |
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04-27-2022, 10:13 AM | #176 | |
Join Date: Aug 2020
Location: Savannah, Ga
Posts: 760
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04-27-2022, 07:07 PM | #177 | |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Quote:
Just want to see what it can do before I swap either a Husqvarna 701, CR500, or GPX FSE450R engine into it over winter. Also planning to gusset the frame, upgrade the suspension, swap to actual Ninja plastics (better quality), and many, many other things.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-27-2022, 07:09 PM | #178 |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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That was a typo on my end, it's a 36T sprocket.
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2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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04-27-2022, 09:54 PM | #179 | |
Join Date: Aug 2020
Location: Savannah, Ga
Posts: 760
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Quote:
I hope to see it around out there before it goes to the wayside! |
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05-02-2022, 07:20 PM | #180 | |
Join Date: Mar 2022
Location: Gouverneur, NY
Posts: 16
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Quote:
Got some new foot pegs installed today too. Next is the fender eliminator with new sequential signals front and rear and my stealth mirrors.
__________________
2022 Venom X22R [YOSAUSA slip -on (Akrapovic eBay special), Nibbi PE28 FL (125 Main, 40 Pilot, aluminum CG250 carb boot), UNI angled pod filter (63.5MM ID), Kemimoto fender eliminator, Kinstecks LED sequential turn signals, TCMI footpegs, custom PBI 36T rear sprocket, Donut clutch sock, Dunlop Q3 Plus tire (120/60ZR17 front, 150/60ZR17 rear: COMING SOON] 1976 Honda CB750 Hondamatic [Restoration in progress... slowly] |
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