New carb installed but..

Whisky · 09-20-2018, 04:36 PM

It idles around 3000rpm I can take the idle screw completely out and still ides at 3000. The plunger is in correctly and there is plenty of slack in the cable. I put a 115 jet in on the advice of someone on here. No vacuum leaks that I can think off. Any ideas would be appreciated. I did a search already.

cbrfxr67 · 09-20-2018, 04:44 PM

Choke on? You didn't say so gotta ask

Chinabike · 09-20-2018, 04:46 PM

Quote:

Originally Posted by cbrfxr67

Choke on? You didn't say so gotta ask

choke only to start, then off till bike idles.

You might want to try smaller main jets

Whisky · 09-20-2018, 04:47 PM

Quote:

Originally Posted by cbrfxr67

Choke on? You didn't say so gotta ask

nope I look inside end where air filter goes and slide will not go all the way down I don't see any obstructions anywhere

Whisky · 09-20-2018, 04:48 PM

what size 110--105?

**JerryHawk250** · 09-20-2018, 04:52 PM

Did you adjust the idle mixture screw?

Whisky · 09-20-2018, 05:01 PM

yes seated and out 1.5 turns

cbrfxr67 · 09-20-2018, 05:02 PM

I'd open it up and make sure the cable is set right through the top. Maybe it's hung up somehow and not letting the slide go down. Keep fiddling with it, you'll get it.

Whisky · 09-20-2018, 05:03 PM

Quote:

Originally Posted by Whisky

yes seated and out 1.5 turns

air fuel screw=seated and 1.5 turns out idle screw does nothing I can turn idle higher but not lower

Whisky · 09-20-2018, 05:06 PM

Quote:

Originally Posted by cbrfxr67

I'd open it up and make sure the cable is set right through the top. Maybe it's hung up somehow and not letting the slide go down. Keep fiddling with it, you'll get it.

cable is in correctly. I took cable completely off plunger and plunger still does not go down all the way. I do have carb off currently

Whisky · 09-20-2018, 05:19 PM

I changed to a 110 jet and idle is still 3k and when I give it some throttle it makes a sucking sound and dies.. going to put the 115 back in as it didn't have the throttle issue

Whisky · 09-20-2018, 05:20 PM

Probably will just put stock one back on for now

**JerryHawk250** · 09-20-2018, 05:29 PM

Do you have the slide in the right groove? You might have it reversed. The long narrow groove slides on the pin and the wide groove goes towards the idle screw.

SilverBullet51 · 09-20-2018, 05:52 PM

Its going to idle high if the slide isn't going all the way down, it doesn't matter what jet you use if the slide doesn't seat. Is the needle sliding freely into the main jet?

Whisky · 09-20-2018, 06:48 PM

Quote:

Originally Posted by SilverBullet51

Its going to idle high if the slide isn't going all the way down, it doesn't matter what jet you use if the slide doesn't seat. Is the needle sliding freely into the main jet?

I had everything correct, as I said before I took the cable off the slide and the slide still doesn't go all the way down. It was an ebay Mikuni carb, could have been a lemon. I will spend more $ and get one straight from Mikuni this time. I put the stock one back on and it runs fine so that will have to due for now. Thanks for all the input though.

09-20-2018, 04:36 PM	#1
Whisky Join Date: Aug 2018 Posts: 286	New carb installed but.. It idles around 3000rpm I can take the idle screw completely out and still ides at 3000. The plunger is in correctly and there is plenty of slack in the cable. I put a 115 jet in on the advice of someone on here. No vacuum leaks that I can think off. Any ideas would be appreciated. I did a search already. __________________ 2018 BD125-8-x21rs ZS190/Genuine PE28 Kepspeed GP1 Exhaust Protaper se x110 bars/grips 1/4 MotionPro throttle Kepspeed Braced swingarm Chimera rear hub assy Grom Intergrated tail light Superlite Sprockets 17/32 custom made from Japan Chimera Swing Arm Bolt RK MXZ Chain #420 All Balls wheel bearings Motodynamic fender eliminator Coremoto ss brake lines Composimo 2.5 lower link Grom Calipers-w/ebc pads/rotors Michelin tire 140&120 13x4/13x7 fatties Grom forks
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09-20-2018, 04:44 PM	#2
cbrfxr67 Join Date: Jun 2018 Location: HOuston Posts: 357	Choke on? You didn't say so gotta ask __________________ BD125-15
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09-20-2018, 04:48 PM	#5
Whisky Join Date: Aug 2018 Posts: 286	what size 110--105? __________________ 2018 BD125-8-x21rs ZS190/Genuine PE28 Kepspeed GP1 Exhaust Protaper se x110 bars/grips 1/4 MotionPro throttle Kepspeed Braced swingarm Chimera rear hub assy Grom Intergrated tail light Superlite Sprockets 17/32 custom made from Japan Chimera Swing Arm Bolt RK MXZ Chain #420 All Balls wheel bearings Motodynamic fender eliminator Coremoto ss brake lines Composimo 2.5 lower link Grom Calipers-w/ebc pads/rotors Michelin tire 140&120 13x4/13x7 fatties Grom forks
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09-20-2018, 04:52 PM	#6
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,562	Did you adjust the idle mixture screw? __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
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09-20-2018, 05:01 PM	#7
Whisky Join Date: Aug 2018 Posts: 286	yes seated and out 1.5 turns __________________ 2018 BD125-8-x21rs ZS190/Genuine PE28 Kepspeed GP1 Exhaust Protaper se x110 bars/grips 1/4 MotionPro throttle Kepspeed Braced swingarm Chimera rear hub assy Grom Intergrated tail light Superlite Sprockets 17/32 custom made from Japan Chimera Swing Arm Bolt RK MXZ Chain #420 All Balls wheel bearings Motodynamic fender eliminator Coremoto ss brake lines Composimo 2.5 lower link Grom Calipers-w/ebc pads/rotors Michelin tire 140&120 13x4/13x7 fatties Grom forks
	0

09-20-2018, 05:02 PM	#8
cbrfxr67 Join Date: Jun 2018 Location: HOuston Posts: 357	I'd open it up and make sure the cable is set right through the top. Maybe it's hung up somehow and not letting the slide go down. Keep fiddling with it, you'll get it. __________________ BD125-15
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09-20-2018, 05:19 PM	#11
Whisky Join Date: Aug 2018 Posts: 286	I changed to a 110 jet and idle is still 3k and when I give it some throttle it makes a sucking sound and dies.. going to put the 115 back in as it didn't have the throttle issue __________________ 2018 BD125-8-x21rs ZS190/Genuine PE28 Kepspeed GP1 Exhaust Protaper se x110 bars/grips 1/4 MotionPro throttle Kepspeed Braced swingarm Chimera rear hub assy Grom Intergrated tail light Superlite Sprockets 17/32 custom made from Japan Chimera Swing Arm Bolt RK MXZ Chain #420 All Balls wheel bearings Motodynamic fender eliminator Coremoto ss brake lines Composimo 2.5 lower link Grom Calipers-w/ebc pads/rotors Michelin tire 140&120 13x4/13x7 fatties Grom forks
	0

09-20-2018, 05:20 PM	#12
Whisky Join Date: Aug 2018 Posts: 286	Probably will just put stock one back on for now __________________ 2018 BD125-8-x21rs ZS190/Genuine PE28 Kepspeed GP1 Exhaust Protaper se x110 bars/grips 1/4 MotionPro throttle Kepspeed Braced swingarm Chimera rear hub assy Grom Intergrated tail light Superlite Sprockets 17/32 custom made from Japan Chimera Swing Arm Bolt RK MXZ Chain #420 All Balls wheel bearings Motodynamic fender eliminator Coremoto ss brake lines Composimo 2.5 lower link Grom Calipers-w/ebc pads/rotors Michelin tire 140&120 13x4/13x7 fatties Grom forks
	0

09-20-2018, 05:29 PM	#13
JerryHawk250 Moderator Join Date: Oct 2016 Location: Houma, La. Posts: 11,562	Do you have the slide in the right groove? You might have it reversed. The long narrow groove slides on the pin and the wide groove goes towards the idle screw. __________________ 2023 Lifan Lycan 250 Chopper 2023 Venom Evader 2022 Lifan KPX250 2020 Kawasaki Vulcan S 2004 Honda ST 1300 2016 Black Hawk 250 (sold) Keihin PE30 carb,125 main,38 slow.Pod filter,ported & decked head 10:1 CR,Direct Ignition Coil,15/40Sprockets,NGK DPR8EIX-9,De-Cat,Dual Oil Cooler,Digital Cluster 2016 Cazador180 XL 2014 Coolster150 JerryHawk250.com My YouTube Channel
	0

09-20-2018, 05:52 PM	#14
SilverBullet51 Join Date: Apr 2017 Location: Plainwell, MI Posts: 60	Its going to idle high if the slide isn't going all the way down, it doesn't matter what jet you use if the slide doesn't seat. Is the needle sliding freely into the main jet?
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