https://motocrosshideout.com/dirt-bike-jetting-101/
Start the engine, and do a full-throttle run down the straight, through all gears. As soon as the bike tops out, pull the clutch in, and kill the engine, coasting to a stop. Remove the spark plug, and look deep down inside the threads, at the base of the insulator. If it is white or gray, the main is too lean.

https://www.youtube.com/watch?v=U8GgYTUU0Fo
Here are some basics for you on how to jet your 2-stroke. We did this with our RM125. If you shop online at Rocky Mountain ATV/MC please click this affiliate

https://www.youtube.com/watch?v=hgBHNJ0jfFM
In this video I will show you how to jet your 2 stroke carburetor, explain the basics of Jets, Needles and Airscrews. I also show the relationship of all the

https://www.advrider.com/f/threads/beginners-guide-to-two-stroke-jetting.1254185/
You'll need some marks on your throttle to show 1/4, 1/2 and 3/4 throttle openings. Guessing isn't good enough. You'll need initial jet settings that are at least close enough to let the engine run and the bike be ridden. If it's a stock engine and carb this is easy - go with the factory settings.

https://www.vitalmx.com/forums/Race-Shop,42/2-stroke-jetting-for-dummies,1005960
The air -fuel mixture runs and cools the engine.You need fuel ,oxygen,and spark. Spark is a given,the tuning has to do with the amount of fuel relative to the amount of oxygen.When it's hot outside,the amount of oxygen in a cubic foot of air is less than when it's cold. Thus an engine will run richer when temps are up,and leaner when temps are

https://www.youtube.com/watch?v=UEDAckImt6U
Order your Parts from Rocky Mountain ATV/MC using this link to support DBC https://www.rockymountainatvmc.com/l/Dirt-Bike-Channel?ref=1017Fuel/Oil Ratio vs F

https://www.fixyourdirtbike.com/fix/how-to/2-stroke-carb-tuning/
Jet Needle. The jet needle is connected to the throttle valve and controls the mixture from approximately ¼ - ¾ throttle. The needle seats into the needle jet and regulates the air-fuel mixture from the jet to the carb throat. During your 2-stroke carb adjustment, pay close attention to the needle.

https://motocrosshideout.com/2sjme/
Peak horsepower without blowing up your engine. Diagnose jetting problems quickly so that you can have more fun riding. Get Instant Access & Support Now For Just $37. Learn the simple steps to jetting any 2 stroke carburetor so that it has smooth and reliable throttle response from idle to redline and feel the difference by.

https://motocrossactionmag.com/mxa-guide-to-yamaha-yz250-two-stroke-jetting-1999-2021/
Pilot Jet: 50. Needle: N3EW. Clip: 2nd from top. Air screw: 1 turn stock. Notes: The 2013-14 YZ250 jetting is on the edge-albeit the good side of the edge. Although if you hop the YZ250 up or

http://kenoconnorracing.com/carb-jetting.php
Basic two stroke carburetor tuning is a skill that should be mastered by anyone that has a two stroke bike or ATV. There are many informative articles on the net related to two stroke carb jetting and tuning. My method of two stroke carb jetting is aimed at training you to recognize when your two stroke carb needs to be adjusted and what

http://millenniumtechnologies.ca/pdf/Jetting_Basics_for_2_Strokes.pdf
2 Stroke Carburetor adjustment procedure for off-road motorcycles These instructions are intended to be followed by an experienced mechanic whom has a thorough knowledge of off road motorcycles, carburetor assembly, and tuning techniques. If this does not describe you please stop and seek professional help as engine damage and serious injury

https://www.motosport.com/blog/a-simple-guide-to-jetting-your-carb
Jet Needle - this controls the fuel when you open and close the throttle (between 20 and 80 percent power) Needle Jet - this is what the jet needle pops in and out of (between 15 to 60 percent of throttle. As you can see the carburetor consists of several parts that work, sometimes in unison, to influence the mixture of fuel and air.

http://oem-cycle.com/forum/viewtopic.php?t=109
jetting a 2 stroke dirt bike carb Jetting your 2 stroke 2 Stroke Jetting questions 2 stroke jetting info ... Carb Jetting Basics Altitude jetting guide jetting issues. If bikes are for kids I'll never grow up. Top. gitbrit Posts: 3 Joined: Thu Oct 08, 2015 2:21 am. Re: Safely Jetting your two stroke dirt bike. Post by gitbrit » Sun Nov 15

http://www.2strokeengine.net/2strokeenginetuning/carburetortuning.php
Carb Jetting. Tweet. 2 Stroke Engine tuning is about getting all the core components working together in symmetry. One of the main core components is the carburetor and jetting. Whether your machine is running a Mikuni, Keihin or Lectron carb, the basic principle is the same. You need to get the right amount of fuel and air entering the engine

https://www.ktmforum.co.uk/threads/2-stroke-jetting-explained.66116/
Turn the air screw all the way in, then turn it out 1.5 turns to start. Start the engine, and turn the idle screw in until you get a slightly fast idle, or hold the throttle just barely cracked, to keep the engine idling. Turn the airscrew slowly in, and then out, until you find the point where the idle is fastest.

https://www.youtube.com/watch?v=67YMqzWDWHY
Today we go over the basics to getting your 2 stroke running at peak performance. We show how to adjust your carburetor to spec and what tools you will need.

https://www.thumpertalk.com/forums/topic/347305-is-your-two-stroke-running-rich-read-here/
Warm the bike completely, and shut it off. As already stated, start with the pilot circuit. Turn the air screw all the way in, then turn it out 1.5 turns to start. Start the engine, and turn the idle screw in until you get a slightly fast idle, or hold the throttle just barely cracked, to keep the engine idling.

https://www.fixyourdirtbike.com/videos/how-a-2-stroke-carburetor-works/
They aren't too different. The main difference is the 2-stroke uses a sliding valve and a spring in the carb cap to return the throttle valve. 4-stroke carburetors use a butterfly valve that is closed by a cable with a slight spring assist. All carbs are the same in their purpose, but every carb is different.

https://www.lectronfuelsystems.com/2t-guides
Cast Carb Tuning Manual (38 H-Series, Etc.) Metering Rod Selection Chart (Non-Billetron) 38 H-Series Exploded Views (2022) Basic Starting Settings for 2 Stroke Dirt Bike Carbs Running Standard Fuels . Tuning Information. Idle Screw . Turning it to the left lowers your slide height and your idle. Turning it to the right raises the slide height

https://kdxrider.net/forums/viewtopic.php?t=1156
Turn the airscrew all the way in, then turn it out 1.5 turns to start. Start the engine, and turn the idle screw in until you get a slightly fast idle, or hold the throttle just barely cracked, to keep the engine idleing. Turn the airscrew slowly in, and then out, until you find the point where the idle is fastest.

https://tremoto.com/2-stroke-carburetor-tuning/
Why carb tuning is important for a 2-stroke bike. A well-tuned carburetor means a well-managed and fit bike. Proper tuning makes a carburetor better at performance. But, inappropriate tuning can cause poor performance or even destroy it. The carburetor needs to be adequately tuned according to the surroundings- temperature, humidity, and attitude.

https://www.reddit.com/r/Dirtbikes/comments/sb2gwc/how_to_jet_any_2_stroke_carb_perfect/
Add the graph that depicts the effective throttle position of the pilot, main, needle shape, and needle positions. i just have put bigger jet when it sounds lean and smaller when rich. i put idel in a way that itll stay on . ill use this on my next 2t. 92K subscribers in the Dirtbikes community.

https://www.rcuniverse.com/forum/beginners-85/8844213-2-stroke-carburetor-tips.html
Beginners - 2 stroke carburetor tips - Here is an old gem. Print it out and keep it in your flight box. Carburetor Basics by BOB GILBERT as appeared in Model Airplane News SET-UP AND OPERATION I'm an old-timer in the hobby, and my motto is Keep 'em flying. Toward that end, I'll try to