New. This 2-stroke carb tuning guide will give you all the information you need to tune your 2-stroke carburetor for peak performance, no matter the make or model. Part #: 148-27 . Worked as the Technical Director at TreMoto, LLC to design and develop 3-Wheeled Vehicles and Leaning Suspension Systems. Then, replace any possible cracks because cracks in rubber couplings may cause air leakage, which you dont want to happen. Perfect replacement for 2005 Vento zipr 3I scooter. Mikuni Vm30 Vm32 Vm34 Throttle Cable 2-1 Cb350 Cb360 Cb400 Cb450 Cb500 Wow! ), **If you are experiencing poor performance, check the following before re-jetting the carburetor!!**. 43CC 49CC 50CC 52CC 15MM CARBURETOR CARB SET FOR GAS POWERED SKATEBOARD 2 STROKE, Carburetor 33cc 43cc 47cc 49cc 50cc 15mm 2Stroke Mini Pocket Rocket Bike Chopper, - Carburetor 33cc 43cc 47cc 49cc 50cc 15mm 2Stroke Mini Pocket Rocket Bike Chopper, Dellorto PHBG DS 21mm Carburetor Carb For 2 Stroke 50cc-100cc Scooter Moped, Fit For Vespa ET2 17.5mm 2 Stroke 50cc 1998-2003 Carburetor Carburettor Carb B8, 50cc 2 Stroke Carburetor Honda DIO AF18 AF27 AF28 SA50 SK50 SYM DD50 Kymco ZX34, CARBURETOR CPI CITY OLIVER 50CC 50 49CC 49 SCOOTER MOPED CARB 2 STROKE NEW, PERFORMANCE TNG ADLY HAMMERHEAD JONWAY 49CC 50CC 2 STROKE SCOOTER CARBURETOR NEW, TNG ADLY HAMMERHEAD JONWAY GENUINE 49CC 50CC 2 STROKE SCOOTER CARBURETOR CARB, For Mortorcycle ATV Scooter Dirt Bike 2 Stroke 50cc~100cc 21mm Racing Carburetor, 19mm Carburetor Moped Carb for 2 Stroke Piaggio Zip Yamaha Jog 50 50cc Scooter, Carburetor for Honda 2 Stroke 50cc Dio 50 SP ZX34 35 SYM Kymco Scooter, Carburettor to fit Vespa LX50 LXV 50cc S, 17.5mm, 2 Stroke 50, 2005 - 2013 Carb, 19mm Carburetor 50cc 2 Stroke Aprilia Can-Am Vento United Chinese Scooter ATV FS, Intake Carburetor Manifold Interface Adapter 50cc/90cc 2 Stroke For JOG50 JOG90, 17MMM Carburetor FOR Elite Dio Moped Scooter 2 Stroke 50cc CA25, CARBURETOR FOR 2 STROKE ATV POLARIS SCRAMBLER 50 50CC CARB, Universal Carburetor Air Filter Part For Motorcycle Bike 37cc 50cc 80cc 2 Stroke, 13mm 2 STROKE CARBURETOR Carb for 47cc 49cc 50cc Pocket Bike ATV Mini Motor, Carburetor Carb For 2 Stroke 49cc 50cc 60cc Motorized Bicycle Bike Replacement, Carburetor for Honda ZX34 35 28 50cc SK50 SYM DD50 2 stroke Engine Scooter Moped, Dellorto PHBL 22AS R2707 Carb For 2 Stroke 50cc-250cc Motorcross, CARBURETOR AUTOMATIC CHOKE 50CC 2 STROKE JOG ENGINES SCOOTERS MINARELLI, Racing Carb Carburetor Kit 49cc 50cc 66 80cc 2 Stroke Gas Motorized Bike Bicycle, Intake Carburetor Interface 50cc/90cc 2 Stroke ScooterFIT For JOG50 JOG90, Carburetor Carb For 2 Stroke 49cc 50cc 60cc 80cc Motorized Bicycle Bike, Carburetor Carb For 2 Stroke 50cc 90cc Yamaha Jog 50 90 Scooter Aprilia SR50, Racing Carburetor & Air Fuel Filter Fit For 2 Stroke 49cc 50cc 60cc 66cc 80cc, Carburetor for 49cc 50cc 60cc 66cc 80cc Engine Motor Motorized Bicycle Bike Carb, [SASA] Universal PWK 21mm Flat Slide Carburetor Kit Fits OKO 2 Stroke 50cc, CARBURETOR CARB FOR ELECTRA 43CC MINI CHOPPER FIT RIGHT FRP DB001 50CC DIRT BIKE, Car 21mm Racing Carburetor w/Power Jet Fit For 2 Stroke 50cc-110cc Mortorcycle, Coolster QG50 QG-50 Carburetor 49cc 50cc 2-Stroke Pocket Bike, Universal Motorcycle Carburetor W/Air Filter For Bike 37cc 50cc 80cc 2 Stroke1. 2-stroke carb Electric choke For 50cc Minarelli engines Model number PZ19J 50cc scooter carburetor designed specifically for 1E40QMB Minarelli 2-stroke scooter, ATV, and dirt bike engines This 2-stroke scooter carburetor is equipped with an electric choke and is often referred to as a PZ19J 30 Day Warranty View full description Quantity: 50cc scooter carburetor designed specifically for 1E40QMB Minarelli 2-stroke scooter, ATV, and dirt bike engines. 2009 - 2010 Honda CRF450R Service Specifications, 1997 - 2001 Honda CR250 Service Specifications, 1994 - 2001 Yamaha YZ125 - Service Specifications. Next, youll need to adjust the needle jet. Tuning the main jet is crucial for throttle response. Discover wholesale 2 stroke 50cc carburetor in different available volumes, including but not limited to Harley Davidson Sportster fuel injection, Suzuki motorcycle fuel injection, Harley Davidson Softail fuel injection, BMW f650gs fuel injection. However, things can go incredibly wrong if the adjustments are made improperly. Full Set 100cc Bicycle Motor Kit Bike Motorized 2 Stroke Petrol Gas Engine Set . Factory Supplied Chart If youre lucky, your bike will have a jetting chart available from the manufacturer, so check with them first. Air Filter Mount: 37mm Motorside Outer Diameter: 24mm Motorside Inner Diameter: 19mm Electric choke, 40QMB 50cc 2-stroke, Eton, Peugeot, PGO, SYM, TGB, Various unlisted makes/models, Vento, Yamaha, Universal Parts Repair Kit for Minarelli Carburetor, Universal Parts 50cc 2-stroke Minarelli Electric Choke Assembly, Universal Parts Idle Jet for Minarelli Carburetor, Universal Parts 50cc Minarelli Intake Pipe, Universal Parts Carburetor QMB139 50cc 4-stroke - 19mm, Electric Starter / Starter Clutch Assembly, 50cc & 90cc Minarelli 1PE40QMB/1PE50QMF 2-stroke Scooter Parts, 250cc Water-Cooled 4-stroke Scooter Parts, Universal Parts Carburetor for 50cc 2-stroke Minarelli. Perfect replacement for 2005 Vento zipr 3I scooter. Aitook Carburetor compatible With 2 Stroke Dinli 50cc 70cc 90cc 100cc 110cc Product Description & Features: Auto Electric Choke / 2 Stroke Intake Inner Diameter: AISEN PZ20 20MM Carburetor for 50cc 70cc 90cc 110cc 125cc 135cc ATV Quad Go Kart Go Carts UTV Sunl NST BMS JCL TAOTAO Coolster Baja, Glixal GY6 49cc 50cc 80cc 100cc CVK Carburetor Carb Main Jet 139QMB 139QMA #78#80#85#87#88#90#92#94#96#98 (10 pcs set) Product Description & Features: Please make sure the, PZ20 Carburetor for Kazuma Baja 50cc 70cc 90cc 110cc 125cc TaoTao 110B NST SunL Chinese Quad 4 Stroke ATV 4 Wheeler Go Kart Dirt Bike, QAZAKY Black Throttle Cable for 49cc 50cc 70cc 90cc 110cc 125cc 140cc Pit Dirt Pocket 4-stroke Bike XR50 CRF50 XR70 CRF70 XR80 CRF80 Z50 Z50R, JCMOTO Mikuni VM16 19MM Carburetor 50cc 70cc 90cc 110cc Pit Trail Dirt Bikes ATV Quad Buggy CONDITION: Brand New Genuine Mikuni VM16 19mm round slide, Powersports 35mm Air Filter 50cc 2-Stroke 90 degree angled Scooter Motorcycle ATV Pocket Bike MYK MOTORCYCLE PARTS 100% Brand new in original packaging, never been, QAZAKY 38mm 39mm 40mm 1.5 Red Angled Double Foam Pod Performance Air Filter Replacement for 50cc 90cc 110cc 125cc 150cc GY6 Motorcycle ATV Scooter Quad, QAZAKY 38mm 39mm 40mm 1.5inch Red Double Foam Pod Performance Air Filter Cleaner 50cc -70cc 90cc 110cc 125cc 150cc GY6 Motorcycle ATV Scooter Quad Go, GOOFIT 33.27 Throttle Cable with Laser Tube for 50cc 70cc 90cc 110cc 125cc Dirt Bike Length:845mm;Cable moving length:105mm Throttle Cable with Laser Tube for 50cc, ATV Carburetor PZ19 with Fuel Filter and 35mm Air Filter for 50cc 70cc 80cc 90cc 110cc 125cc ATV Dirt Pit Bike Taotao Honda CRF By, QAZAKY 2 PCS 38mm 39mm Air Filter Cleaner 45 Degree Bend Splash Proof Plastic Cover 50cc 90cc 110cc 125cc 140cc 200cc Motorcycle ATV Scooter Quad, Poweka 00084 Blue New 39mm Air Filter Gy6 Moped Scooter ATV Dirt Bike Motorcycle 50cc 110cc 125cc 150cc 200cc Inside diameter is 39m Stainless steel, QAZAKY Universal 38mm 39mm 40mm 1.5 Air Filter Cleaner Replacement for 50cc 90cc 110cc 125cc 150cc 200cc GY6 Motorcycle ATV Scooter Quad Go Kart Moped, Carburetor Air Fuel Filter PZ19 Carb For 50cc 70cc 90cc 110cc 125cc ATV Dirt Pit Pocket Bike Taotao Honda Go-kart 4 wheeler Baja Motorbike Kawasaki, ATV Carburetor PZ20 Carb Set with Air Filter and Fuel Filter for 50cc 70cc 80cc 90cc 110cc 125cc TaoTao Honda Baja Coolster Quad Pit Bike, Glixal Jog 50cc 72cc 1PE40QMB Scooter Carburetor Mikuni VM11/22 Pit Bike ATV Dirt Bike Main Jet#70 #75 #80 #85 #90 #95 #100 #105 #110 #115. Changing the carburetor jets is how you compensate for changing oxygen density: more oxygen requires more fuel to even out the air/fuel mixture. More Crazy Wednesday Snap Friday Weekend Specials All Crazy Auctions. Compare specifications, photos and reviews of 31 offers from other stores at a price of 16.8 usd. 2 Stroke Carburetor Carb Compatible For Dinli 50cc 70cc 90cc 100cc 110cc ATV Quad Carb, For Dino Jp Beast Helix DL603 With 38mm Air Filter 57 1 offer from $23.98 Carburetor Carb For 2 Stroke Dinli 50cc 70cc 90cc 100cc 110cc ATV 98 10 offers from $32.99 Choke Type. All Content, All Images 2022 Monster Scooter Parts. Fixing this is as simple as changing the main jet. The engine should fire up immediately if the adjustments are correct. GY6 Stock 4-Stroke Carburetor DESCRIPTION Manufacturer: Outside MPN: 03-0024 Title: GY6 Stock 4-Stroke Carburetor Size: Option: 50cc W/Electric Choke Color: Compatible with: GY6 style 50cc . Carburetor description: 2 stroke carburetor Fuel shut off valve Mounting holes: 38mm [1.50"] center to center Intake OD: 12.7mm [.50"] Air filter bolt hole distance: 40mm [1.57"] Shipping details: Customer must: un-crate . Universal Parts Carburetor - 41QMB 2 . Keeping spark plugs in the proper temperature range can be quite a job but crucial for high-speed operation. 50cc 2-Stroke Carburetor (12mm) 50cc 2-Stroke Carburetor (12mm) VEHICLE ASSEMBLY Since you are skipping the Dealer and saving over half the retail cost, you will have some assembly to do. SHUOG Vergaser Carb DellOrto SHA 12.12 R2219 Compatible With Piaggio Bravo 50cc Vespa Ciao Grande Carburator Scooter Moped 2 Stroke SHUOG in Carburetors. The atomized air/fuel mixture then passes into the throat of the carburetor. Recommended Carb (s) 33cc. A 2-stroke carburetor works the best at low engine temperature. Carburetor; CDI; Clutch Kit; Cover . Recommended Intake Size. 50cc 90cc Special Offers Clearance Top Seller Carburetor 30 Products Carburetor and parts for the 49cc 4-stroke QMB139 engine. #75 is standard replacement with stock air box. This page was last updated: 04-Mar 17:40. A rich mixture will cause poor performance, but a lean mixture can destroy your engine (over time). Fits 47cc - 49cc 2-stroke. The last piece of the 2-stroke carb tuning puzzle is knowing how to identify an unbalanced air/fuel ratio. This vacuum is controlled by the throttle slide cutaway, which measures the height of the upstream bottom edge of the throttle slide. Carburetor Carb For 2 Stroke Dinli 50cc 70cc 90cc 100cc 110cc ATV Visit the USonline911 Store 96 ratings | 7 answered questions $3299 FREE Returns Carburetor FITS for ETON RXL90 RXL 90 E-TON 90cc Viper ATV Quad 2 Stroke Carb Intake Inner Diameter: 19mm; Intake Outer Diameter: 24mm; Air Filter Inner Diameter: 32mm; Air filter Outer Diameter: 38mm. If it is fit and upgraded, the dirt bike is sure to run as smoothly as ever, and the carburetor will perform at its peak level. Maple leave Carburetor For Yamaha 50CC Mikuni Aftermarket Motorcycle Dirt Bike TTR50 Carb 2006-2011, Aitook Carburetor compatible With 2 Stroke Dinli 50cc 70cc 90cc 100cc 110cc, AISEN PZ20 20MM Carburetor for 50cc 70cc 90cc 110cc 125cc 135cc ATV Quad Go Kart Go Carts UTV Sunl NST BMS JCL TAOTAO Coolster Baja NST Kazuma Carb Intake Gasket O Ring O-Ring Air Fuel Filter, Glixal GY6 49cc 50cc 80cc 100cc CVK Carburetor Carb Main Jet 139QMB 139QMA #78#80#85#87#88#90#92#94#96#98 (10 pcs set), PZ20 Carburetor for Kazuma Baja 50cc 70cc 90cc 110cc 125cc TaoTao 110B NST SunL Chinese Quad 4 Stroke ATV 4 Wheeler Go Kart Dirt Bike Honda CRF50F XL75 CRF80F XR50R with Air Fuel Filter, QAZAKY Black Throttle Cable for 49cc 50cc 70cc 90cc 110cc 125cc 140cc Pit Dirt Pocket 4-stroke Bike XR50 CRF50 XR70 CRF70 XR80 CRF80 Z50 Z50R KTM 50 KTM50, JCMOTO Mikuni VM16 19MM Carburetor 50cc 70cc 90cc 110cc Pit Trail Dirt Bikes ATV Quad Buggy, Powersports 35mm Air Filter 50cc 2-Stroke 90 degree angled Scooter Motorcycle ATV Pocket Bike, QAZAKY 38mm 39mm 40mm 1.5 Red Angled Double Foam Pod Performance Air Filter Replacement for 50cc 90cc 110cc 125cc 150cc GY6 Motorcycle ATV Scooter Quad Go Kart Moped Pit Dirt Bike Kawasaki Yamaha, QAZAKY 38mm 39mm 40mm 1.5inch Red Double Foam Pod Performance Air Filter Cleaner 50cc -70cc 90cc 110cc 125cc 150cc GY6 Motorcycle ATV Scooter Quad Go Kart Moped Pit Dirt Bike Kawasaki Yamaha Suzuki, GOOFIT 33.27 Throttle Cable with Laser Tube for 50cc 70cc 90cc 110cc 125cc Dirt Bike, ATV Carburetor PZ19 with Fuel Filter and 35mm Air Filter for 50cc 70cc 80cc 90cc 110cc 125cc ATV Dirt Pit Bike Taotao Honda CRF By LIAMTU, QAZAKY 2 PCS 38mm 39mm Air Filter Cleaner 45 Degree Bend Splash Proof Plastic Cover 50cc 90cc 110cc 125cc 140cc 200cc Motorcycle ATV Scooter Quad Go Kart Moped Pit Dirt Bike GY6 PZ22 PZ25 PZ26 PZ27, Poweka 00084 Blue New 39mm Air Filter Gy6 Moped Scooter ATV Dirt Bike Motorcycle 50cc 110cc 125cc 150cc 200cc, QAZAKY Universal 38mm 39mm 40mm 1.5 Air Filter Cleaner Replacement for 50cc 90cc 110cc 125cc 150cc 200cc GY6 Motorcycle ATV Scooter Quad Go Kart Moped Pit Dirt Racing Bike Yamaha Suzuki Baja TaoTao, Carburetor Air Fuel Filter PZ19 Carb For 50cc 70cc 90cc 110cc 125cc ATV Dirt Pit Pocket Bike Taotao Honda Go-kart 4 wheeler Baja Motorbike Kawasaki Quad Carb W/Gaskets, ATV Carburetor PZ20 Carb Set with Air Filter and Fuel Filter for 50cc 70cc 80cc 90cc 110cc 125cc TaoTao Honda Baja Coolster Quad Pit Bike Dirtbike Go Kart Moped Scooter, Glixal Jog 50cc 72cc 1PE40QMB Scooter Carburetor Mikuni VM11/22 Pit Bike ATV Dirt Bike Main Jet #70 #75 #80 #85 #90 #95 #100 #105 #110 #115, Genuine Mikuni BN44I Carb Carburetor Rebuild Kit Yamaha GP XL XLT GPR, Genuine Mikuni Dual Carb Carburetor Rebuild Kit & Base Gaskets SeaDoo 951 2 Pack, Acouto Carburetor Repair Kit Motorcycle Carburetor Rebuild Repair Kits Accessory Motorbike Repairing Part for YM YBR125 JYM125 for Mikuni Carburetor VM22, Freedom County ATV FC03401 Carburetor Rebuild Kit for Polaris Trail Blazer, Trail Boss 250, Trail Boss 24, 44, Venom Brand SeaDoo Mikuni Carburetor Rebuild Kit & Needle Seat & Base Gasket (Compatible With Sea-Doo, Fits 92-96 GTS, 91-96 SP & 93-96 SPI), All Balls Carburetor Repair Kit 26-1009 Polaris Sportsman 600/700 44 2003-2007, Carburetor Choke Cable for MIKUNI HSR42 HSR45 HSR48 for HD HSR CV Carburetor Replacement # 426232, 990-662-002, TC-Motor Blue Racing Performance Intake Pipe Inlet Manifold Gasket Screw For Predator 212cc For Honda GX200 For 6.5HP Chinese OHV Engines For Chinese 196cc Clone Engines Go Kart Cart Mini Bike. 1x Carburetor. 50cc - 90cc Engine $64.98 ShopBrand $64.98 Cdi Box for Eton,dinli,polaris - 2 Stroke 90cc Viper ShopBrand $39.99 #27 STARTER MOTOR - 50cc - 90cc TWO STROKE ATV/ SCT ETON ShopBrand $79.99 Carburetor for Dinli 2 Stroke SALE!! if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'tremoto_com-medrectangle-3','ezslot_10',102,'0','0'])};__ez_fad_position('div-gpt-ad-tremoto_com-medrectangle-3-0');Check if the carburetor is fit to go through any adjusting. R/C Cars & R/C Trucks. Carburetor description: 2 stroke carburetor with electric choke 2-wire male plug for choke 6" pigtail for choke Threaded pipe on top for throttle cable Intake side ID: 19mm [.75"] Intake side OD: 24mm [.94"] The slow jet draws fuel from the bowl and mixes it with air from the pilot air jet passage. And its up to you to ensure that. Raising the clip will lower the needle into the jet, creating a lean mixture; lowering the clip will raise the needle, creating a rich condition. Carburetor for Honda 2 Stroke 50cc Dio 50 SP ZX34 35 SYM Kymco Scooter Brand New $24.99 Seller: jhpws818 (16,105) 98.3% Buy It Now Free shipping 147 sold Sponsored Big Bore Carb Carburetor For GY6 50cc 100cc 20mm 139QMB 139QMA Scooter Moped AT Brand New $20.61 Save up to 10% when you buy more or Best Offer Seller: spost-us (751) 99.7% Free shipping SHUOG Dellorto PHBG 17.5mm/19.5mm AS/AD Carburetor 4 Stroke 50cc-80cc Engine 4T Dellorto PHBG Carburetor Fit For Scooter Moped SHUOG (Color : 19.5mm AD) in Carburetors. Top Rated Seller. Performance New Carburetor Compatible with 50cc 2 Stroke Vento Zip Triton Avalanche 50 : Amazon.co.uk: Automotive Carburetor tuning leads an engine to its peak performance. 2 stroke carburetor tuning is not exactly like 4 stroke carb tuning. CARBURETOR 50cc 2 Stk Electric Choke. Knowing how to change your jets and needles is one thing, but it wont do you any good if you dont understand how the changes will affect your dirt bike. The main jet is screwed to the bottom of the needle jet and controls the mixture from approximately to full throttle. Outlet Shopping Shopping satisfait Livraison GRATUITE et RAPIDE Carburetor Geely Qingqi 50 50cc Scooter 2 Stroke Carb I CA31 senseicrm.com, 41.2 Les meilleures offres pour Carburetor Geely Qingqi 50 50cc Scooter 2 Stroke Carb I CA31 sont sur Comparez les prix et les spcificits des produits neufs et d'occasion Pleins d'articles en . Sell on Bonanza. I'm considering moving down to a 14mm Bing instead of the 15mm SHA I have on my Sachs now for this very reason. It is mandatory to procure user consent prior to running these cookies on your website. I am Eddie Smith. CARBURETOR 50CC/60CC/66CC/80CC 2 Stroke Engine Motor Motorized Bike Bicycle YURZ - EUR 10,70. Hello everyone. Ill make you a master of 2-stroke carburetor tuning.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'tremoto_com-medrectangle-4','ezslot_11',103,'0','0'])};__ez_fad_position('div-gpt-ad-tremoto_com-medrectangle-4-0'); Carburetor tuning basically means adjusting the necessary parts and screws of it. Part 4 of a 4 part video detailing all of the basic settings and adjustments of the carburetors found on Minarelli / Jog / 1E40QMB powered 50-90cc scooters and youth ATVs. The floats are made of hollow plastic or metal connected to the carburetor body by a hinge. Checkout. After youre done modifying the carburetor, check again to see if the new parts are installed and timed correctly and adequately. From Scratch If you are starting from scratch, you will have to begin by making major adjustments and gradually narrow your tuning down. R/C Tanks. Learn how your comment data is processed. Be extra careful when you mount and attach the carburetor into place and tighten the carburetor clamp. You can use the filters for free return of 50cc 2 stroke carburetor! Displaying 1 to 5 (of 5 . Un-burnt fuel/oil sludge leaking from the muffler = Rich. Buy Carburetor Fit for GY6 50CC 49CC 4 Stroke Scooter Taotao Engine 18mm Carb Intake Manifold Air Filter for 29.82 usd in the online store EasyDrive Automotive Store. Top Rated Plus. Same Day Shipping On Orders Before 3PM, M-F, 0 items - $ 0.00 Fits 50cc - 90cc 2-stroke. C $37.42. 18mm Carburetor with Electric Choke for GY6 50cc Moped Scooter. Hope this article comes in handy while you go down with tuning the 2-stroke dirt bike carburetor. Intake Size Range. If it is brown or black, it indicates richness, and if the plugs color is dusty white, it means it is burnt, and the mixture is lean. 19 mm PZ19J Carburetor for 2-Stroke 50cc 1E40QMB Engines, Order by 5:00 PM ET for Same-Day Expedited Shipping, Throttle Potentiometers, Levers, & Springs, 50cc scooter carburetor designed specifically for 1E40QMB Minarelli 2-stroke scooter, ATV, and dirt bike engines, This 2-stroke scooter carburetor is equipped with an electric choke and is often referred to as a PZ19J. Universal Parts Carburetor QMB139 50cc 4-stroke - 19mm Part #: 151-29 Add to compare $34.99 Add to Cart Out of Stock Universal Parts Carburetor QMB139 50cc 4-stroke - 20mm Part #: 151-222 Add to compare $39.99 Add to Cart Turning the pilot air screw in will richen the air/fuel mixture while turning the screw out will lean out the mix. These variables will change with the ambient you ride your dirt bike in. All Content, All Images 2022 Monster Scooter Parts.