Leaderboard

Howdy y'all, I'm trying to fix a neighbors 2015 Brute Force 300. Came in with hard to start and won't idle except on choke issue. I pulled the carb and found the pilot jet as well as the emulsion tube partially clogged. Cleaned up everything, put it back together, still having issues... It will start right up on choke and will also start off choke if you give it just a touch of throttle but it absolutely will not idle unless it's choked just a touch. Also, excuse my ignorance but I'm assuming the "dial" thingy attached to the carb that turns in and out is for setting idle??

Yup, the setting in the book is just to get it running, then it needs adjusting while it's running, and warmed up.. A tool is a huge help.

I figured you had probably cleaned them while apart ,just thought i would mention it. I usually start with the mixture screw 1 1/2 turns out from seated and adjust it until its running the best usually end up between 2 and 3 turns out. There is a tool that makes this easier Amazon sells several versions this is the one they recommend: https://www.amazon.com/Carburetor-Adjustment-Screwdriver-Motorcycle-Snowmobile/dp/B0BMTG92J7/ref=sr_1_2?crid=3UOBFMYX0H15D&dib=eyJ2IjoiMSJ9.TkpaU_CuOz3g4qBIsE0V3kMWh2LbJ8B--hRZEtRfDG6FSmQaIMAT_bCclJwC3rMnlvUzYzqd3kfdzlVuSTgdmgMuzklKuPmVjr-telZpWZ7oufONGBcix2tI-Rwb2C_ziP_sMT2DT7g3C8s0XdkPuIEQC912TUXCxnpQSyz9Bia0ezgQQFdmCzIAmYA24MGkC7qF6doGOWJFnrzv44euu_ifx_hXcVP3zMKQndygysd3y0i9_T3lYxf6MyfyiRp5xSS5B4n_kc2vi5fQWTjEfBK5ahg-fwd4528zGtdYGuw.dK0eY_t2Q-uOOZ41B5km52z_Z3V1Rmb8ydWD4HfRYh0&dib_tag=se&keywords=atv+adjusting+screwdriver&qid=1712854997&sprefix=atv+adjusting+screwdriver%2Caps%2C122&sr=8-2

Not sure about the dial thingy but it should have a knurled thumbscrew on the side somewhere to adjust the ilde speed, and the idle mixture screw is at the front underneath and hidden up a tube. Did you check the rubber inlet manifold wasn't split, or that it doesn't have an air leak somewhere ? Tight valves can make them hard to start and not idle well too.