Carburetor Rebuild - Individual Parts

BDesigns now offers carburetor parts. If we currently do not offer what you are looking for or are having difficulty finding parts for your carbs, please contact us and we will check with our sources. Some of the parts available here may fit other carburetors, in particular XJ models. If you are unsure, please contact us for sizing information. Some parts below are common to various Yamaha models.

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Genuine Mikuni Gasket - Float Bowl

CURRENTLY OUT OF STOCK

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. $9.25 each plus S&H. Part #BC-MBS30-BG

Plastic Carb Float

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. Will fit other models. $11.25 each plus S&H. Part #BC-MFL-01

Needle Valve and Seat with O-Ring

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. Will fit some other models. $12.50 each plus S&H. Part #BC-MNV-01

Starter Plunger

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. $11.75 each plus S&H. Part #BC-SPL-BS30

Main Jet #127.5

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. Will fit some other models. $7.35 each plus S&H. Part #BC-MMJ-127.5 (For the XJ650LJ/LK, #1 & #4 carbs use this jet)

Main Jet #132.5

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. Will fit some other models. $7.35 each plus S&H. Part #BC-MMJ-132.5 (For the XJ650LJ/LK, #2 & #3 carbs use this jet)

Needle Jet

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. May fit other models. $13.50 each plus S&H. Part #BC-MNJ-01

Pilot Jet #35

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. Will fit some other models. $3.00 each plus S&H. Part #BC-MPJ-35

Main Jet Washer

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. $0.90 each plus S&H. Part #BC-MMJ-W01

Fuel Bowl Drain Screw with O-Ring

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. $6.20 each plus S&H. Part #BC-MBS-01

Idle Mixture Screw Assembly

Fits 1982-83 XJ650LJ/LK Seca Turbo, 1981 XJ550 and all YX600 Radian BS30 Mikuni carbs. $9.50 each plus S&H. Part #BC-MIMS-01

Butterfly Valve Shaft Seals

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. $7.50 for a set of two plus S&H. Part #BC-MBS30-BSS

Butterfly Valve Screws

Fits all Mikuni BS30 and many other carbs. $1.00 for a set of two plus S&H. Part #BC-388-051-BV

Fuel Inlet Tee

Fits all Mikuni BS30 carbs. Hover mouse over picture for list of additional models. Features solid brass construction with O-Rings included. Gallery rod length is 45mm and fits carb body openings of 9.5mm diameter. Inlet gallery is 25mm long. $23.28 each plus S&H. Part #BC-CFT-05

Starter Plunger O-Ring

For 1982/83 XJ650LJ/LK Mikuni BS30 Mikuni carbs. May fit other models. Made from Buna-Nitrile. $1.10 each plus S&H. Part #BC-BNO-00K-SP

Fuel Bowl Drain Screw O-Ring

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. Will fit many other models. Made from Buna-Nitrile. $1.10 each plus S&H. Part #BC-BNO-00G-DS

Needle Valve Seat O-Ring

Fits 1982-83 XJ650LJ/LK Seca Turbo, 1994 Virago XV750 and all YX600 Radian BS30 Mikuni carbs. Will fit some other models. Made from Buna-Nitrile. $1.10 each plus S&H. Part #BC-BNO-1767-NVS

Fuel Gallery O-Ring

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. Will fit other models. Made from Buna-Nitrile. $1.10 each plus S&H. Part #BC-BNO-00J-FG

Fuel Check Valve O-Ring

For 1982/83 XJ650LJ/LK Seca Turbo Check Valve. Made from Buna-Nitrile. $1.10 each plus S&H. Part #BC-BNO-00F-CV

Fuel Check Valve Housing O-Ring

For 1982/83 XJ650LJ/LK Seca Turbo Check Valve. Made from Buna-Nitrile. $2.42 each plus S&H. Part #BC-BNO-1514-CVB

Carburetor Manifold O-Ring

For 1982/83 XJ650LJ/LK Mikuni BS30 Carbs. Replaces OEM #93210-36549-00. These are used between the mating surfaces of the carburetor manifolds and engine. Made from temperature resistant Viton. $6.80 each plus S&H. Part #BC-VTO-2036-CM-01

Idle Mixture Screw O-Ring

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. Will also fit XS650G/H/SH/ SJ/SK/SL (1980-84) with Stock Mikuni BS34 CV Carbs. Will fit some other models. These o-rings were never made available from Yamaha. Made from Buna-Nitrile. $1.10 each plus S&H. Part #BC-BNO-1030-IMS-01

Carburetor Starter Plunger Boot

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. $8.95 each plus S&H. Part #BD-SPLDB-BS30(1)

Carburetor Diaphragm Cap Screws

Fits all Mikuni BS30 Carbs, but will also fit most Mikuni Carbs. Zinc plated. $2.00 for a set of 4 plus S&H. Part #BC-CCS5-10

Carburetor Rack Mounting Screws

Fits most Mikuni carbs with a 4 carburetor rack. Includes eight M5*10 and eight M6*12 screws. Zinc plated. One set does all 4 carbs. $6.00 for the set plus S&H. Part #BC-CRS5X10-6X12

Float Bowl Mounting Screws

Fits all Mikuni BS30 Carbs, but will also fit most Mikuni Carbs. Zinc plated. $2.00 for a set of 4 plus S&H. Part #BC-CBS5-16

Float Bowl/Diaphragm Bolts - Lock Washers

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs, but will also fit most Mikuni Carbs. Split lockwasher, Zinc plated. $1.00 for a set of 4 plus S&H. Part #BC-ZLW-05

Idle Mixture Screw Washer

Fits 1982-83 XJ650LJ/LK Seca Turbo and all YX600 Radian BS30 Mikuni carbs. Will fit some other models. $2.50 each plus S&H. Part #BC-ZFW-IMS-01

Carburetor Rack Mounting Screw - Lock Washers

Fits most Mikuni carbs with a 4 carburetor rack. Includes eight M5 and eight M6 split lock washers. Zinc plated. $3.00 for the set plus S&H. Part #BC-ZLW5-6

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BDesigns mission is to support the restoration and maintenance of historic vehicles. Purchases and use of our products and services is to allow owners of historic vehicles to meet that goal by providing an accurate and high quality source for products that are discontinued and no longer offered by OEM companies. We will not provide any products or services that are still and only offered by OEM companies.