That is very cool looking... has a Steampunk quality to it... I dig the water faucet style adjustment knob! I wonder how four of them would look/run on my 83 Nighthawk 650... But, I'm not willing to chop out my air box, etc... Well Done! Post a follow-up video of it running , and you revving the engine a bit... :)
The air line that normally runs to the air box under the carb what did you do about that and i used the throttle cable you suggested but i don't have enough cable sticking out plus how do i make it pull back another word's the factory carb where throttle cable hooked to was spring loaded.
Great video. I’m reviving 1991 nighthawk 250, the bike hasn’t ran since 2012 and I came across this video..I’ve watched it several times. What do you do with the catch can off the air box, is that what a pod filter is? Was there any crazy mod for the throttle cable since it has the pulley style?
Inside where the airfilter use to go I put a bras 4 way 3/8" fitting. Crankcase hose goes in, 2 small breather filters and a hold in bottom of airbox to run a tube downward toward the ground behind the engine per normal.
Thank you so much for making this, super helpful! Could you please send a link to the intake manifold, I'm having trouble finding the right one. Also, do you have to remove the airbox to make this work, or is it compatible with the stock airbox? Would prefer to not chop it out if possible. Thanks!
On ebay mostly. They go for $30-50 www.ebay.com/itm/144668270111?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=DlIJM8aGTau&sssrc=2349624&ssuid=VNONT1iQQQS&var=&widget_ver=artemis&media=COPY
Hey man! I enjoy watching your content! I understand that this is not on the correct video, but it is one of your sooner posts so hopefully you see this. I have recently purchased an Amstar Nostalgia and am looking to engine swap to a 125cc engine. Do you happen to know what engines are plug and play for this bike? What are the mounting hole spacings? After many weeks digging and measuring my bike, I have yet to find this information and hope that you (someone who has done this before) have some insight. Any information you can provide would be greatly appreciated. Thanks so much!
Just about any "Honda" 125 will fit the Amstar. I am running a TBolt Pirahna YX140. Just bolted right one. If you can find one with electric start and avoid the exhaust routing woes I initially went with because of the kick only option on the 140. The kick only will hit a "low" exhaust. You can run a CT70 exhaust like I did if you get a kick only. Lifan 125's do work. Just look at my other videos for the wiring info. Most are simple colors. Yellow, white, red w/black, blue w/white and green
Will the Nibbi PE24FL fit the standard intake manifold on the Honda Nighthawk or did you have to get the Twinstar for this carb to work. I need to replace the carb on my bike but a Honda carb is mad money. Thanks G P
@@mayhembike could you do a full guide on this? I just bought my first motorcycle a 2001 Honda rebel 250 and my carb is dead. I'm thinking it's the same motor and it'll work on mine I'm getting the last of the parts in soon and it would be nice to see how you did it exactly. And it might help future new riders fix up there nighthawk/rebel/cb. For example did you have to get an aftermarket throttle? Or were you able to make stock work? What about the choke cable?
Did u install a new throttle cable compatible with carb? Also you may need to turn up idle screw and also use choke on carb to start till warm. Mine has been sitting since Dec and started right up 2 days ago.
@@mayhembike yes. I did get it running. Had to order jets and jetted to the 38/115 specs you went with. Seems to run good after tuning. Will ride tonight to test
I removed the factory manifold. Let it sit for a day and gently reused mine on Twinstar manifold. 25.5mmx2.5mm if I recall. If you want new use part 91301-KR3-003, you will need 2
One more question.. I see you posted the link for carb and throttle cable (which I ordered). Does that cable thread into the stock handle bar throttle)? Or what did you use?
True. Honda CB250 factory is 26mm. I tried a Nibbi 26 and it was too big for the CM185/200 intake. A cheaper PZ26 does fit. But is not a round venturi more like an oval.
@@ArthurAlison I just bought a Nibbi PE 28mm for my Rebel 250 since it's the same size as a PZ26, but it performs better for a 250cc, and I have the same 26mm manifold. I'm thinking about how to make the adaptation work well, but I wanted to know if you've tried fitting that 28mm to a 26mm manifold? How did it turn out? Or what kind of adaptation did you make? Please let me know.
@@joysticks90I also just bought a 28 mm nibbi for.my hawk. Did you have any issues? I got the non flanged version and an adapter boot for the 45 degree stock manifold.
Thanks for making this video, my carb seems good but if I ever want to replace it I'll follow this route.
That is very cool looking... has a Steampunk quality to it... I dig the water faucet style adjustment knob! I wonder how four of them would look/run on my 83 Nighthawk 650... But, I'm not willing to chop out my air box, etc... Well Done! Post a follow-up video of it running , and you revving the engine a bit... :)
The air line that normally runs to the air box under the carb what did you do about that and i used the throttle cable you suggested but i don't have enough cable sticking out plus how do i make it pull back another word's the factory carb where throttle cable hooked to was spring loaded.
Think I'll stick to my dual carb setup
HI THERE.....what throttle cable did you use for it that fits the nighthawk....???
Great video. I’m reviving 1991 nighthawk 250, the bike hasn’t ran since 2012 and I came across this video..I’ve watched it several times. What do you do with the catch can off the air box, is that what a pod filter is? Was there any crazy mod for the throttle cable since it has the pulley style?
Inside where the airfilter use to go I put a bras 4 way 3/8" fitting. Crankcase hose goes in, 2 small breather filters and a hold in bottom of airbox to run a tube downward toward the ground behind the engine per normal.
@@mayhembike thank you
Thank you so much for making this, super helpful! Could you please send a link to the intake manifold, I'm having trouble finding the right one. Also, do you have to remove the airbox to make this work, or is it compatible with the stock airbox? Would prefer to not chop it out if possible. Thanks!
Yes. Airbox was modified. Not removed. Made front hole larger.
Hi. Great work. Can you put the links for the twin manifold I and have trouble trying to find one.
On ebay mostly. They go for $30-50
www.ebay.com/itm/144668270111?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=DlIJM8aGTau&sssrc=2349624&ssuid=VNONT1iQQQS&var=&widget_ver=artemis&media=COPY
Hey man! I enjoy watching your content! I understand that this is not on the correct video, but it is one of your sooner posts so hopefully you see this. I have recently purchased an Amstar Nostalgia and am looking to engine swap to a 125cc engine. Do you happen to know what engines are plug and play for this bike? What are the mounting hole spacings? After many weeks digging and measuring my bike, I have yet to find this information and hope that you (someone who has done this before) have some insight.
Any information you can provide would be greatly appreciated. Thanks so much!
Just about any "Honda" 125 will fit the Amstar. I am running a TBolt Pirahna YX140. Just bolted right one. If you can find one with electric start and avoid the exhaust routing woes I initially went with because of the kick only option on the 140. The kick only will hit a "low" exhaust. You can run a CT70 exhaust like I did if you get a kick only. Lifan 125's do work. Just look at my other videos for the wiring info. Most are simple colors. Yellow, white, red w/black, blue w/white and green
Will the Nibbi PE24FL fit the standard intake manifold on the Honda Nighthawk or did you have to get the Twinstar for this carb to work. I need to replace the carb on my bike but a Honda carb is mad money. Thanks G P
You need to get a Twinstar intake off ebay for like $40. Then the Nibbi 24FL will bolt right on pretty much.
@@mayhembike could you do a full guide on this? I just bought my first motorcycle a 2001 Honda rebel 250 and my carb is dead. I'm thinking it's the same motor and it'll work on mine I'm getting the last of the parts in soon and it would be nice to see how you did it exactly. And it might help future new riders fix up there nighthawk/rebel/cb. For example did you have to get an aftermarket throttle? Or were you able to make stock work? What about the choke cable?
Installed this carb in my nighthawk 250 along with the twinstar manifold. Now it won't start at all with the new carb. Any suggestions?
Did u install a new throttle cable compatible with carb? Also you may need to turn up idle screw and also use choke on carb to start till warm. Mine has been sitting since Dec and started right up 2 days ago.
Also did you put orings on the manifold before installing?
@@mayhembike yes. I did get it running. Had to order jets and jetted to the 38/115 specs you went with. Seems to run good after tuning. Will ride tonight to test
@@mayhembike I did go with new throttle cable you posted link to. Works good
91 cb250 night hawk.. do I have to have the twinstar manifold to use this nibbi carb??
Yes. I got both of mine off Ebay at about $40 each.
@@mayhembike do you have to install gaskets on the twinstar manifold?
I removed the factory manifold. Let it sit for a day and gently reused mine on Twinstar manifold. 25.5mmx2.5mm if I recall. If you want new use part 91301-KR3-003, you will need 2
Ok so the twinstar 185? I'm gonna order it. Tired of my stick carb giving me problems
One more question.. I see you posted the link for carb and throttle cable (which I ordered). Does that cable thread into the stock handle bar throttle)? Or what did you use?
24mm is too small ! 30mm on 250 is wonderfull
True. Honda CB250 factory is 26mm. I tried a Nibbi 26 and it was too big for the CM185/200 intake. A cheaper PZ26 does fit. But is not a round venturi more like an oval.
@@mayhembike Yeah, I have one and the best settings I found are there : nibbi PE 28mm with a factory exhaust and 30mm with a racing exhaust ;)
Give much more power?
@@ArthurAlison I just bought a Nibbi PE 28mm for my Rebel 250 since it's the same size as a PZ26, but it performs better for a 250cc, and I have the same 26mm manifold. I'm thinking about how to make the adaptation work well, but I wanted to know if you've tried fitting that 28mm to a 26mm manifold? How did it turn out? Or what kind of adaptation did you make? Please let me know.
@@joysticks90I also just bought a 28 mm nibbi for.my hawk. Did you have any issues? I got the non flanged version and an adapter boot for the 45 degree stock manifold.