nibbiPE30 Carburetot for Hawk 250 Dirt Bike, with Air Filter Intake Manifold Connector, Hawk250 Carb upgrade Performance Enhancement

So I avoided swapping my carb immediately because I felt the thousands of owners where doing it out of herd mentality and not giving the stock carb a chance . The stock carb is fine for the bike and will work for a new rider like I was for a few weeks until you master the bike then you will want more . I tried the 28 flanged pz30 replacement and it did not fit my hawk and had to be sent back the studs hit the carb body on the left side and did not allow any room to attach the nut on the left side .I was hesitant to start again but since I had came this far I bit the bullet and ordered this full kit . The manifold adapter in this kit has been changed from the one motocheeze had in his video . The replacement one they supply is at an odd angle and has about a little over a quarter inch to attach to torwards the bottom and closer to half an inch torwards the top . Once it is attached you can not use the stock breather with the 30 like some suggest . You do not have to cut it off it's is rtv attached with a rubber lip and will pull right out if pressed with a flat head to return to stock . .Once I finally got it attached out of the box it fired right up the cold air filter sounded weird at first it hisses and sounds like an air leak at one of the joining points but it is not that's just how it sounds .I ran the carb as it came jetted at 128 and 40 it greatly improved torque and speed up until half throttle . I was able to power wheelie in first gear without strong arming the bike or using rebound or up clutching which I could never do before the swap . From half throttle to full the bike bogged down like it had a rev limiter . I used the air mix screw to lean the mixture one turn and the symptom improved but was still very present but told me it was a rich bog .I took the carb apart which was simple to do even for a first time rider and dirt bike owner . It took me all of 5 to 10 minutes . I installed the supplied 125 jet that came with the kit and left the 40 . I returned the mixture screw to its original setting and the problem was 95 percent gone . You could step down to the supplied 122 or lean the mixture with the 125 but I wanted mine slightly richer . The back now performs fine through the entire throttle band . I am at or below see level in San Antonio Texas .Now overall it has increased the low end torque and increased the shift rate dramatically and cut speed build up time dramatically and by running rich the engine runs much much cooler . Overall it is well worth the money spent and isn't to big for the hawk . I like that it leaves rooms for upgrades with the carb size and jets like say if I decide to add an exhaust or do a big bore kit in the future I have enough carb to do so .If you have been wondering like I was if it was worth doing the swap or if everyone was just changing it outta of a follower mindset like I did I will honestly say the Reddit and forum crowd was right on the money on this one . It really does wake the bike up . The bike starts up on the first try with no choke although it's not freezing here it can get low 70s to 60 early morning . It worked with stock throttle cable and also helps the bike not die out when sitting or riding in 1st gear at a slow pace or hitting the rear brake which the stock carb had a habit of doing . The bikes have lots of reports of the motors being noisy and mine was also but it wasn't the valves . The carb swap eliminated the engine clatter and now sounds like a sewing machine instead of a bag of bolts shaking . The exhaust no longer wants to burn your calf off after riding a few minutes . I realize now that all this came from the stock carb being jetted way to lean from the factory .I know I supplied a lot of info but it's the stuff I wish the other users would have left for me when posting instead of just saying swap it , it really wakes bike up and so on without the details of the jets being used or the tuning or how it woke the bike up .So here I did the work for you and provided a good basis to start when setting up the carb and the reason you should actually do it .The bike no longer sounds like a lawn mower and has much lower tone at idle and a respectable thump thanks to the carb and runs a lot stronger and cooler and had a major decrease in engine noise . I also am runnin 10w 40 full synthetic bike oil (yes there's a difference) during my break in and am at 175 miles . And am now confident this engine will last a long time with these minor upgrades and proper care .So if your looking for a reason if the power isn't enough the overall health benefit to your engine and clutch should let you pull the triggerUpdate after playing with can the best set up is 122 and 42 for best performance and factory smooth throttle .For best performance with super Low end torque 122 and 45 . You can watch the needle drop at open throttle but it wakes up 1st and second fully but will be on the rich side of things

Amazing upgrade for your hawk 250. I bought mine new in 2017 but it recently sat for a while due to issues beyond my control. The stock carb was gummed up and has the shear bolts making a service on it a pain. I could have went with a cheap direct replacement but decided to upgrade to this instead. Install took less than an hour and everything fit perfectly. You may need to delete your air box to make room for the air filter. Also since it isnt clear it comes with jets installed 128 main and 40 pilot(seperate jets if you want to play around are included). I got it all installed and put some fresh gas in her and....WOW this really wakes up the engine, not only is throttle response improved but over all power delivery is greatly improved. It will do roll on wheelies in 1st gear now. I dont think it would do that before. Overall i would highly recommend this upgrade. For the price the quality you get is oustanding. It seriously feels like a different motorcycle.

Perfect 👌 works as it should, and looks nice.

This is my 4th try at these nibbi carbs ..the intake port is 28mm...not 30mm..cheap bolts broke off in head had to weld the entire thing on..its better than the stock fit! Great stuff !!

Works well after we fooled with it for a while, since there are no instructions or a photo/drawing to identify where and what the adjustments were.

This carburetor brought a new kind of life to my Hawk 250.The easy-to-adjust idle set screw on the right of the carburetor also acts as a choke, no longer having issues keeping the bike revving right at all temperatures. Previously the bike would run fine with the choke on when first started (cold engine) but would bog down and not idle anymore even with the choke off. The engine would need to heat up substantially to idle and then over time, it would idle too high.That issue is no more, the carb was initially too rich, and putting in a slightly smaller pilot and main jet fixed issues with bogging down or misfiring when giving it throttle. The engine runs smoother with more power and it's unbelievable better than the stock carburetor.I would also recommend using the cold air intake that comes with this instead of the air-restricting airbox.(or make a storage container from it, lol.)If you have a Hawk 250, this carb is AWESOME. Realtime idle adjustment whenever you want is a lifesaver for this bike.

Okay so I bought this after reading dozens of real users trying and having great success. It showed up quick and had everything in the box that was needed! The universal consensus before installing is to swap out the main jet from the #128 to the #122. Leave the Pilot Jet at 40. Let me tell you it’s night and day compared to the factory carb!!!! Truly made a huge difference in starting, idle and powerband. I actually enjoy riding this more than ever.

Seems to be good quality but did not fit like it said it would.