Motorcarb Air Striker Carburetor for Keihin PWK 38mm for Yamaha YZ250 Suzuki RM125 RM250 Honda CR250 CR500 Kawasaki KX125 KX250 Carb

Worked right out of the box with my LT500R build. I bought it to replaced a Keihin 39mm with worn out emulsion tube and jet needle. I was dealing with an annoying hesitation at 1/8-1/4 throttle transition creating a very rich condition (carb would not adjust no matter what I did). I decided to roll the dice and bought this carb. It came with 175/50 jets installed, extra jets and extra jet needle. Worked great. I just had to adjust both the idle screw and air screw a little. This $35 carb save my quadzilla and works just as good as the OEM Keihin that costs $350-400. The emulsion tube is removable which I think is a great improvement over OEM Keihin. Parts (slide, etc) however are not compatible with OEM Keihin. Chinese carbs are a hit and miss thing but I would give 5 stars to this one after hearing/watching good reviews on Youtube.

Worked Great! Have used plenty of genuine Keihin pwk carbs as well as mikuni and this worked just as well

Had to change the needle and jets to flow about 40% more fuel for a yz300. Main upped to 182 and pilot to 55. Needle is small changed to nz03. Now it's very crisp and responsive.

Just as good as a genuine $300+ Keihin 38mm Air Striker! Be aware you will have to buy the correct jets separately for an 'astronomical' $10. My '00 CR250R requires a 55 slow & 178 main for peak performance and after I installed them it made my CR scary. Before the powerband was narrow and bogged now it hits low and has no peak...it just keep climbing. The freakin motor would blow before I reach the limit. Also I removed the flow bowl drain & filled it w/ superglue. Now it doesn't leak drop no matter how far I lean it over. Before I couldn't get much over 45. Now I bet I could get almost 80mph out of it.

It will work for any rm250 through 91 and 99

It came with different size jets so I was able to tune it exact for my rm250. My motor really came alive with this carburator

I'm a professional mechanic and I could not get this carburetor to work correctly it would run it lean Rich depending on what day the week it was

I installed this on my kx125 and anything past a quarter throttle it just bogs out and shuts off, not sure if the main jets too rich or what but it does not work as intended

came missing parts and the chrome finish on the slide was chipping off horrendously

My bike blew up a week later.

Does not work as a stock replacement as stated