Planet Minis

Stomper · 02-10-2009, 05:16 AM

Hi, would this carb work on a 110cc, and if so what jets?

Stock this is what i got, but it's not working, spark plug is black and the idle is too high, 3000rpm.

dood · 02-10-2009, 10:48 AM

Can't tell which carb that is so don't really know which way to tell you to go.
Based on what you say, I would go to a 17.5 pilot or 20 and drop the main down to a 80.

Blackwoodz · 02-10-2009, 11:05 AM

Idles that high you have something wrong...wrong needle. slide not seating or an air leak. That looks like the Chinese Mikuni 22mm carb.

Stomper · 02-10-2009, 02:01 PM

no air leak, the 19mm carb is working fine with the same intake.
slide is seating well
needle was the one i had with the carb.

I buyed the carb on ebay, fit bolt-on like advertised, but dont work bolt-on LOL.

So, what can i do to get the idle down?

fatcaaat · 02-10-2009, 02:27 PM

On a full blown 110 racing setup, I onced used a tm24 flatslide. I jetted 17.5/150. This was intake, porting, pipe, cam, and a high compression setup with stroker.

Blackwoodz · 02-10-2009, 04:59 PM

I have a 125 with that exact same Chinese Mikuni 22mm oval bore carb. It works good with that stock setup. I have no clue why it would be idleing high.... unless the tank or something is binding the throttle cable not letting it return to seat.

Stomper · 02-11-2009, 04:03 AM

the throttle valve is seating well, if it was only that i wouldnt had asked help.

I tried everything possible, nothings work, the idle dont want to get down, nothing to do.

If someone have a clue let me know, for now this carb is real junk for 100$, dont worth 1$ so dont buy mikuni carb on ebay.

My chinese carb is working fine and the real mikuni doesnt work, LOL.

T Bolt USA · 02-11-2009, 04:10 AM

what you have there is your basic 22mm mikuni (china)
if your plugs black your too rich
Pilot Jets

VM28/486 Series fit all RS and HS Carburetors (Mikuni)

Sizes: #15, 17.5, 20, 22.5, 25, 27.5...and up

Main Jets

100/604 Series fits all RS and HS Carburetors (Mikuni)

Sizes: from #60 thru #100 (60,70,80,90,100) from 105 thru 200 in sizes increments of 2.5

Realgun · 06-16-2009, 02:00 PM

I have the same problem. After installing a 22mm carb the darn motor will not idle. I spins at 5000 RPM.

I have removed the cable to see it that a problem and nothing changed.

Interestingly I can put my hand over the carb mouth and get a nice idle.

02-10-2009, 05:16 AM	#1 (permalink)
Stomper PM Newbie Join Date: Mar 2008 Posts: 28	Mikuni 24mm with 110cc Hi, would this carb work on a 110cc, and if so what jets? Stock this is what i got, but it's not working, spark plug is black and the idle is too high, 3000rpm. Last edited by Stomper; 02-10-2009 at 06:05 AM.

02-10-2009, 10:48 AM	#2 (permalink)
dood 3rd Gear Member Join Date: Sep 2006 Location: Washington Posts: 3,055	Re: Mikuni 24mm with 110cc Can't tell which carb that is so don't really know which way to tell you to go. Based on what you say, I would go to a 17.5 pilot or 20 and drop the main down to a 80.

02-10-2009, 11:05 AM	#3 (permalink)
Blackwoodz 3rd Gear Member Join Date: Aug 2008 Location: SC Michigan Posts: 3,626	Re: Mikuni 24mm with 110cc Idles that high you have something wrong...wrong needle. slide not seating or an air leak. That looks like the Chinese Mikuni 22mm carb.

02-10-2009, 02:01 PM	#4 (permalink)
Stomper PM Newbie Join Date: Mar 2008 Posts: 28	Re: Mikuni 24mm with 110cc no air leak, the 19mm carb is working fine with the same intake. slide is seating well needle was the one i had with the carb. I buyed the carb on ebay, fit bolt-on like advertised, but dont work bolt-on LOL. So, what can i do to get the idle down?

02-10-2009, 02:27 PM	#5 (permalink)
fatcaaat 3rd Gear Member Join Date: Sep 2004 Location: Arlington, VA Posts: 3,780	Re: Mikuni 24mm with 110cc On a full blown 110 racing setup, I onced used a tm24 flatslide. I jetted 17.5/150. This was intake, porting, pipe, cam, and a high compression setup with stroker.

02-10-2009, 04:59 PM	#6 (permalink)
Blackwoodz 3rd Gear Member Join Date: Aug 2008 Location: SC Michigan Posts: 3,626	Re: Mikuni 24mm with 110cc I have a 125 with that exact same Chinese Mikuni 22mm oval bore carb. It works good with that stock setup. I have no clue why it would be idleing high.... unless the tank or something is binding the throttle cable not letting it return to seat.

02-11-2009, 04:03 AM	#7 (permalink)
Stomper PM Newbie Join Date: Mar 2008 Posts: 28	Re: Mikuni 24mm with 110cc the throttle valve is seating well, if it was only that i wouldnt had asked help. I tried everything possible, nothings work, the idle dont want to get down, nothing to do. If someone have a clue let me know, for now this carb is real junk for 100$, dont worth 1$ so dont buy mikuni carb on ebay. My chinese carb is working fine and the real mikuni doesnt work, LOL.

02-11-2009, 04:10 AM	#8 (permalink)
T Bolt USA Advertiser Join Date: Jan 2005 Posts: 4,789 My Mood:	Re: Mikuni 24mm with 110cc what you have there is your basic 22mm mikuni (china) if your plugs black your too rich Pilot Jets VM28/486 Series fit all RS and HS Carburetors (Mikuni) Sizes: #15, 17.5, 20, 22.5, 25, 27.5...and up Main Jets 100/604 Series fits all RS and HS Carburetors (Mikuni) Sizes: from #60 thru #100 (60,70,80,90,100) from 105 thru 200 in sizes increments of 2.5 __________________ T Bolt USA ALL top Pitbikes ,Engines and Parts for Pitbikes & Minis Website Contact THECRKID@TBOLTUSA.COM or Call 215-630-3554

06-16-2009, 02:00 PM	#9 (permalink)
Realgun PM Newbie Join Date: Jun 2009 Posts: 1	Re: Mikuni 24mm with 110cc I have the same problem. After installing a 22mm carb the darn motor will not idle. I spins at 5000 RPM. I have removed the cable to see it that a problem and nothing changed. Interestingly I can put my hand over the carb mouth and get a nice idle.

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