2-Stroke Jetting Basics and Carb Tips

Here are some basics for you on how to jet your 2-stroke. We did this with our RM125.
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Jay Clark/Dirt Bike TV has been around the Dirt Bike industry for thirty years and is always looking to learn and help others do so as well. Give a follow or drop an email if you have any questions or comments. Thanks for watching!
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#2stroke #dirtbike #rm125

[@JacksonD489]

You’re the man, Jay! It’s a blessing to have someone knowledgeable willing to put this information out there… Cheers to you!

[@townsendYXZ]

Never heard of that little compressed air trick at the end that was pretty neat will be putting that in my tool box.

[@carsonpoole5873]

Excellent channel, best in the business

[@grampaeasysmachines207]

Great info. Thank you sir

[@spencerclark2269]

Awesome jetting tips 🎉🎉

[@jimmyneutron6127]

Id like to know when a bike comes to you, how you diagnose that you need to adjust the carburator. Then how do you diagnose when to charge jets. Reading a plug exc

[@Dirt_Bike_Dave]

Thanks Jay...you can never have to much info on doing the jetting .

[@JimEckert]

Now I can finally go through mine!

[@Workerbee-zy5nx]

I learned stock to begin with at normal altitudes, then the higher up the jetting needs change, or temp and air density changes dictate. I do it in 1 step increments.

[@TheCarlejoseph]

Thanks for the tips. Jetting can be a pain.

[@78raarons]

6:59 Guitar G/B string works great for cleaning out jets..

[@dougb2091]

Thank you Jay. Very helpful on my 99 yz250 getting dialed in after carb rebuild. The challenge is idle adjustments since it's done with choke on a Keihin.

[@bradmckinnon945]

Legend mate! This helped me out a lot today 🙌💯 appreciate the content!

[@Pedrofs001]

killer 🎉🎉🎉🎉

[@jcbenson01]

I was hoping for some plug reading and discussion about plug chops.

[@crash86ed]

I was always told never to use wire to clean jets as it will gouge the brass inside and you now have richer jet. Be gentle :)

[@Haze-derr]

I have a husqvarna cr 2001 250cc there is no jetting recommendations on the side bought a new carb keihin pwk 38mm Carburettor the shop said it was ready to ride but it just bogs out when trying to give throttle

[@sendit6011]

Triple triple, I get a bog right in between them. Perfect everywhere else. Something getting stuck?

[@patrickmuller5223]

Only think i learend where that theres diferent slides not even knowing what the diference

[@MXguy495]

Anybody have any tips for getting rid of that initial bog right off the bottom of a 250 2 smoker?

[@elcincero321]

Find out your air screw turnouts, reset it and go by feel

[@wayno23]

Try lowering the needle..leaner.

[@billbright1755]

A carburetor can only preform as it is pre programmed. Proper fuel to air ratio for combustion across the rpm spectrum of the engine. The more carburetors the more potential for a mistake in tuning. Altitude extremes can cause necessary jetting changes. Also oil premix ratios. More oil means a leaner fuel mixture as oil not nearly as combustible as gasoline. Ethanol is junk foisted off by Congress and is to be avoided in racing engines.

[@legenderekonwheels]

They aren't Philip's head screws, they are JIS

[@jasonjavelin]

Very under rated comment! JIS screwdrivers are cheap and a must have from messing up those carb screws.