When I purchased my bike last year it did not run well at my altitude. I did lot of chasing around trying to get a good combination of jetting to get the bike running well. I got a variety of jets and these work great, just don't overtighten them as they are soft brass.
Good quality jet, I don’t see any reason it wouldn’t work in an OEM carb. But take note and beware that you can NOT use this jet in the QA parts carb RM sells. Use this in your OEM carburetor only. They really should specify in either part description.
Rebuilt my sons' CRF100F with a 120cc big bore kit and modified the exhaust and air box for more flow. Raised the needle one notch but bike still bogged at 3/4 throttle. Installed this next size larger jet and the bog went away. Engine pulls hard right to red line now. Works great!
I would recommend this item to any one I use a lot of their parts and they never let me down well made products for your bike out there and they have a lot to choose from for your needs put their parts to the test at every race
I let my quad set with bad gas and clogged the jets. The price was cheap enough and they are just as good as OEM so I just bought a new one. It saved me the hassle of cleaning the old one and I didn't have to worry if I was going to have to take it out again to re-clean it.
Just like Mikuni or Keihin jets, but at a fraction of the price. Dial in your pilot circuit with one of these. If your bike is having problems starting or bogging/hesitating at ¼ throttle or less, you could have a clogged pilot circuit.