Keihin PWM Problems, Tips, and Tricks

Over the years, Swedetech technicians have seen a lot of bad assembly work or just simple mistakes. This video address a few of the common problems we see with the Keihin PWM and PWK carburetors on the shifter karts.
Problems include full throttle being jammed, rubber boots being stuck, stripped out screws, cable adjusters, and more.
Please leave your feedback below for this videos or other videos you want to see in the future.
You can buy replacement parts from shopswedetech.com

[@sickkid129]

Exactly what I needed! You fixed a problem I didn’t know I had with the full throttle issue haha. Came here for idle issues left with full throttle! Nice

[@stevesolo16]

I helped the development with the PWM. In karting, in the early 1990's the "top" carb was the Del orto 39 JM racing was selling for a small fortune. But, they didn't show you their set up as it was a very complicated carb. Keihn was pushing their PWK for Karting. The fuel on the PWK dropped out of atomization too quickly when you got off the throttle and it took too long to get back to atomization when you got on.

[@efilnikufesina7532]

A lot of great info for the inexperienced mechanic. I'm learning as I go. I just cleaned the carburetor yesterday, and the first tip, very helpful. Perfect straight forward video.

[@jamesmorello9847]

Great video bro been working on a 36mm pwk just got it back in a 22 beta rr (pain in arse to get out) then watched your video, thought no way going to have to take it off again which would’ve been a major pain in arse but listened for that metal on metal at the top and thank god it made the right sound😅, never even noticed that notch too worried about getting the float level right as it was pissing out fuel before, plus the oil injected thingy majig put back right,😅 but yeah keep making content, straight to point no messing keep it up my American brother 🇬🇧🇺🇸

[@Croseb2]

Thank you!!!!! I could not figure out why my new PWK carb was sticking. I didn’t line up the notch on the spring. Saved me a trip to the shop.

[@doriandensmore5833]

Noticed this today. Great video

[@phillipkleinhans8321]

Hi Jason, Thanks for the tips. Great stuff! I have a 1983 Honda Express Business Moped. Keihin Carb gave me endless trouble.Yoyr tips helped me adjust my old carb just great:)

[@DiegoPerez-ug2yv]

Great video! Helped me out a lot. Getting wide open throttle now.

[@pacman6169]

Awesome Video! That helped me alot , especially the Choke Rubber Grommet Tip because i assume that i have this exact Problem and wondered why it was weird to Setup !

[@CW-up7xv]

Great content!!

[@raizlc]

Thank you so much for this video. I spent hours trying to troubleshoot my YZ250 carb because it wouldn't

[@outbackenduro7418]

Thanks for the advanced tips :)

[@javasoldier5926]

thanks for valuable info. good job!

[@MagisMoto]

Thanks for sharing very helpful

[@alanmcn17]

Excellent video thank you

[@marcialquinones5683]

thank you so much I have same carburator im find the problem now is the choke

[@THYROTRON]

Excellent video. I have an issue with fuel leaking from the overflow. Is there an o ring around the needle valve seat on these carbs? The brass seat doesn't look like it comes off. Regards Matt

[@MisieQ]

How to set a carburettor to the cross? I have Yz 250. The candle is black. I do not understand what is happening with clicks

[@773steve]

great video thanks

[@pruebasoftware7943]

Very Nice videos, Do you have any chart or table to select the best (or lest worst) the jetting of the carb in swedetech engine?? Another question. Why when i tune (jetting) the carb, then, i fire up the kart in the "sicssor bench" everything sounds perfect and work well, then, i get in the kart and kart has so much trouble to fire up. thank you!!!