Dirt Bike Carburetor Jetting

http://www.bikebandit.com?utm_source=youtube&utm_medium=description&utm_campaign=dirt-bike-carburetor-jetting This BikeBandit.com How To Video overviews Dirt Bike Carburetor Jetting with Steve Matthes and was produced by Transworld Motocross. Jetting a carb on a dirt bike can be daunting, but it nets some of the biggest performance gains of any upgrade. As we all know, the settings from the factory aren't quite 'optimal'. Luckily, fixing that is easily remedied with a Jet Kit and a bit of time in the garage. Jet kits for dirt bikes can be found on the BikeBandit.com website at http://www.bikebandit.com/jet-kits/cm/a676379?utm_source=youtube&utm_medium=description&utm_campaign=dirt-bike-carburetor-jetting Jetting steps will vary bike to bike. Jetting instructions can be found within most dirt bike owner's manuals. Instructions are also included with jet kits. Float bowl gaskets on dirt bikes have a tendency to be a one use deal, so it's important to have a replacement ready if you remove the float bowl. Float bowl gaskets for dirt bikes can be found on our website under the OEM parts section at http://www.bikebandit.com/oem-parts?utm_source=youtube&utm_medium=description&utm_campaign=dirt-bike-carburetor-jetting

Comments

1. My kx250f bogs and stalls out if I go from idle-3000 Rpms to full throttle it bogs out what do I do?
2. +BikeBandit Hi, I own a Honda XR650l. I would like to get more speed without losing torque and killing my MPG. What should I set the Jets to? Or would it just not be worth it?
3. I'm having trouble with my yz250f as soon as I hit the throttle there is a 3-4 second hesitation before the power hits making it impossible to get power straight out of the gate any idea what to do with the jets? Go up or down in size? Please help
4. Hello Steve and Bike Bandit... I just replaced my 12.1piston with a 13.1 piston. My question is, do I need to do any re-jetting to compensate for the increase in compression?
5. I just put a 300 big bore kit on my Yamaha raptor 250 I'm at sea level in Florida. I'm adding an exhaust as well. When tuning to support the new mods besides jet and needle adjustments should changes to float position be made as well? Or just checked for proper timing as per usual?
6. i just bought a 05 ktm 400 exc it ran fine when I test drove it. now most of the time it bogs/ back fires at half to full throttle and pops when I let off the gas. It seams to help if i roll on the gas slowly. When in natural and I snap the throttle it bogs but if I roll it on it revs fine. but the other day it was running good it stll poped on deceleration about 15 min. Into riding it started boging again. I cleaned the carb twice before then it has all the srock jets srock exhaust and the guy I bought it from just had it cleaned before putting it up for sale. I think the bike was siting a while befor e he sold it judging by rust on the brake rotors ect. The air filter is not dirty
7. Now the engine locks up frequently
8. I cleaned the float bowl and it still won't start
9. Also my plugs are wet with gas
10. I have a 2006 kx 85 and it won't start I have gotten new plugs 3 cleaned the carb new air filter new reeds and it still won't start
11. Now if I give it gas it make a loud popping and seem like its about to cut off when I have the throttle back 50% and then it start moving then it stop moving and seem like its about to cut off again. I REALLY NEED YOUR HELP !!!
12. I have a crf250r I wanted to know what I have to do because my bike don't idle unless I put the choke on or rev the throttle 06 crf250r
13. What does it mean when my Suzuki RMZ 450 2007 Ricky Carmichael edition shopts fire out of the exhaust. By the way I have a Pro circuit T4R exhaust.
14. more rich
15. hello iv been working on my 2001 yz250 that has been sitting a few years, I rebuilt the top end, and cleaned the carburetor but i just can't get it to stay on and idle, and when I test ride it, the bike only stays on when the RPMs are high otherwise it boggz out a bit..not sure if it's from too much gas to the carb or what..any suggestions ?
16. and get a bigger pilot jet is that right
17. so to get better bottom end move the clip on the needle bak to 3 for leaner and 5 being richer.i have a 2003 cr 125
18. Hey i have a question and i really need your help. I have a 2 stroke cr85 and i keep foing the plugs. The air screw mixture is 2 full turns out as according to the manual but i have noticed one problem that i think might be causing it, my bike starts right up without using the choke at all. I heard that a cold engine isnt supposed to start with the choke off. Any suggestions on where i should start? Im using a 32:1 mix as well. Ive also noticed spooge coming out of the end of the silencer and the part where the silencer connects to the manifold.
19. Could the low idle fuel/air ratio be slightly changed by tweaking some of the jets or needle to eliminate decel popping?
20. Great information, thank you. Gotta say however, love the slip at 2:28..." notice that seat of the power pants immediately....l" LOL : )