Carburetor Jetting: Idle Jet Removal 

Really appreciate these types of videos. Thank you for taking the time to record, edit and post your tutorials. Cheers Cody

Your videos opened a new horizon on my vintage bikes that are beating me up, now I just need some time.

thanks for the tips and tricks big guy. i actually have 2 of these jets broken off in my carbs and plan on changing them when the jets come in. This 87 Honda Magna VF700C has been a real learning experience and the info you put out there is golden. I really appreciate the work you do . Thanks

ANOTHER reason why this channel rocks! Thanks man.

Great content as expected Cody. Quick tidbit, If you decide to use heat, Please ensure the carb is fully dry and free of liquid fuel before you proceed. Have fun and be safe wrenchers..

thanks

very nice, simple, direct video. worth watching. I learned a bit or two. thank you.

I heat the carb body in the oven to about 100 degrees and use a puller tool that I made myself and that grabs the outside of the idle jet. Works fine.

Many later-model 1970s CBs also have these Keihin 3L press-fit idle jets. For example, my 1978 CB550K has them. It's nearly impossible to clean them thoroughly without removing. But you can do it nondestructively with heat and soft-jaw pliers. When they're really tight, it often helps to rock them ever so slightly side-to-side, not enough to ram the tube into the side of the air passage, but just far enough to break loose from the seat.

Great to see you Cody! And great information to boot! Cheers my Friend! Zip~

Cheers for the info..I have the same carbs and needed to remove pilot jet as it is clogged up with 10 year old petrol..thanks for the informative video...big thumbs up..

Great video!

Nice video , i had to re jet carbs on a 78 cb400 , the jet is recessed so i tapped it with a 4/40 tap and used a long bolt / nut / washer as a jack screw to pull it free..... I did not reuse as i was going bigger but it didn't seem like the few threads cut would interfere with the jet function the ammout of debris i cleaned out was enormous BTW

Nice. And people, just know that once you do this that jet is trash so make sure you really want to do it. Take your time and have a new jet in hand.

Cody, I have a small hairline crack/fracture in one of my carb bodies (1975 Honda CB750). It got dropped during vapor blasting. The crack is couple mm's long and it's right at the top of the tube where the brass emulsion tube screws into the carb. Is there any epoxy I can use that wouldn't be destroyed by gasoline? Structurally the carb seems okay, emulsion tube still screws in fine, just hoping that crack doesn't go past the end of the emulsion tube threads.

Hey Cody just a question my bike has been sitting for about 3 years its a yammaha yzf1000r thunderace the tank was drained and all the carbs where run dry before l storage. l am bring out now and putting it back on the road if l run 95 octan fuel and fuel doctor addative in it do you think it will clear if ant crud in the carbs if any, or do you think l should pull all the 4 carbs out and clean then all. l have never done it before but l have watched all you videos so l have the basics on what to do. Can you give me your option on whats best , try it see how it goes or fully dismattle them. love your videos very well done very interesting all so. if you get time can you do one on a clucth on a bike like my one.. Regards and best wishes John from Australia.

Thaks for this Video it will help me get my Stuck Clogged Pilot jets out of my Carbs on my 1986 FJ1200. I have been been unsuccessful till now. Quick question removing a jet this way can you reuse them or do you recommend replacing after using the extractor tool?

Awesome video thanks, I just have a question where can you buy those at on line I would really appreciate it thanks buddy

I tried your way backing it out and it wasn't working , so I yanked them straight out with pliers. Worked on all 4. Thanks for suggestion tho

On my 1996 Honda Magna they call this the starter jet..its a VP31A Keihin...should I remove it or just clean with a micro bit or micro file..Thanks Love your videos

Get on it my brother!!

Question for you. If you remove the jet like you showed, can you reinstall that same jet back in? Will it not have scaring of the jet hole from the extractor?

could one extract a Dynojet set and put them in a new carburetor, or is it futile and a new set should be bought for the new carbie?

Support!

Hey bro, good stuff. CB 750, legend. So I have a VTX 1300 and can't find the carb float height. Do you by chance have that measurement? It isn't even in my Clymer manual. Thank you.

I went to remove the pressed in jet to clean the carb and I broke the injector. It's a 2000 Honda vt 1100c2 Sabre. I got the jet pulled out, it's just a cover sleeve. The size says 62. Any suggestions???

So how do you press the new ones in? Rubber mallet?

When rejetting a carb for an open exhaust and pod filters ...with using an infrared temp gun...what would be an acceptable heat range to shoot for ...idle ...midrange ..w.o.t...???

Keihin Type 28mm Press in pilot / slow jets Available in sizes: 35, 38, 40, 42, 45, 48, 50, 52, 55, 58 KHS 49 A 50 #50..This is OEM size for my 1996 Honda Magna VF750F.. Where can I buy four of them. I have search the worldwide web and coming u empty handed.Thanks

Thanks for share! please excuse my wrong english. I need some help now not about this special content but yes for jetting. I'm crazy looking jetting my Honda XR150L, Keihin PD 20mm bore carburetor. I'm not a technician just researching. Local service does not have a O² sensor and spark plug reading knoweledge seems not to be good. I made 2 times plug chop for main jetting and it goes wrong without vissible carbon deposits making me to ask for myself if jets I have been testing are out of range or still in lean range. Stock jets are 38 and 102, 150cc, 20mm bore carburetor, 1500f ASL, 82~95°F. Chevron "97 RON". spark plug reading shows white dots, white deposits so jets are very lean. I jump for #112 main jetting but plug chop shown just a little brown mark but not a complete ring and spotted at the upper part of insulator and oriented to the exhaust valve, not more! This question is for your knoweledge, for this engine, carburetor and environments, what numbers of jets could be the range to test? I just like to protect my engine from overheating and knocking or some else failure... Thanks!

Help please!, I'm having issues with starting my kz650, I put pods filters it has open exhausts too, still start harshly always need to choke one of the carbs(put my hand over the air admition) to start, could be the i need to change the main jet?

Oar Sum content Cody! :-)

Any vid on how to clean those stucky fellows?

How to set float hight on a non adjustable plastic float?? Thanks

what jet size comes on1980 cb900c stock

hi cody can i replace my auto cct with a manual one on my kawa 600zzr

Have you tried get valve seat out on keihin vp carb. (As on 3 gen Honda Magna v4 twin). Tks for reply.

Can you re-use jets after removing them with extractor?

I was riding my bike today and while i was riding it just started to back fire and turn of i got a new battery thinking that was the problem and it happend again i ride a 2002 yamaha r6 i think it might be the stator can anyone help?

Cody I have a question in regards to my bike and how its running

Hi I have a 1999 Honda Cb750 F2 same engine as a nighthawk how do you adjust the fuel mixture while the carbs are installed on the engine limited spacing cheers

WHY CANT JETS JUST BE MADE OF TITANIUM INSTEAD OF THAT CRAPPY BRASS?!!!

Hi, for 80 cc malossi with malossi exaust and 21 carburator what idle should it be? Now I have 50 idle wich I thinks to big... main is 98.. thank you