BS34/38 CV Mikuni Carb Slides, Carb Top Parts, Throttle Butterfly Parts

Carb Slides should be replaced if the the diaphragms are torn or if the
slide body rotates from the diaphragm (is loosened).

Note: Carb slides for 1978-79 XS650s are not interchangeable with
other slides as the needle retainer differs. 1978-79 slides are
currently no longer available.

Carb Slide & Diaphragm Assembly

Carb Slide & Diaphragm Assembly. - Fits: Mikuni BS38 CV Carbs as used on 1970-77 XS/TX 650's OEM Ref.# 256-14940-00 - Mikuni Genuine Also fits: XS500 C/D 76-77, TX650 73-74


OEM Reference #
• 256-14940-00

Part #20-6029
$76.00 USD Ea
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Carb Slide & Diaphragm Assembly

Carb Slide & Diaphragm Assembly. - Fits: Mikuni BS34 CV Carbs as used on 1980-84 XS650's OEM Ref.# 3F7/3H5-14940 - Mikuni Genuine Also fits: SR250 Exciter 80-82, XJ900 RK Seca 83, XJ1100 Maxim 82, XS1100 G/H/LG/LG/SG/SH 80-81


OEM Reference #
• 3f7-14940
• 3H5-14940

Part #20-6028
$80.00 USD Ea
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Slide Needle Preload Spring

Spring - Slide needle preload spring for stock BS34 CV Mikuni carbs as used
on 1980-84 North American model XS650's. OEM Ref.# 3F7-14589-00-00

This spring holds the slide needle down in place in the carb slide.
Part #48-0669
$3.50 USD Ea
Add to Cart

Jet Needle Washer

Slide Needle Washer

Washer - Fits under slide needle preload spring and on top of needle & clip on
stock BS34 CV Mikuni carbs as used on 1980-84 North American model XS650's.
Part #48-0770
$1.10 USD Pr.
Add to Cart

Slide Needle Clip

Carb Slide Needle Clip (pk./2) - Fits: Slide Needles on 1974-84 650's with stock Mikuni BS34/38 CV Carbs.


OEM Reference #
• 256-14919-00

Part #48-0668
$1.10 USD Pk/2
Add to Cart

Screws - 5mm.

Screws - 5mm.(no lock washers) Late Mikuni CV carb Lid Screw - Pk./4


OEM Reference #
• 98580-05012-00

Part #48-0992
$2.20 USD Pk
Add to Cart

Screws - 5mm.

Screws - 5mm.- Early Mikuni BS38 CV carb Lid Screws with lockwashers and Late 34mm CV Bowl Screw Pk./4


OEM Reference #
• 98507-05014-00

Part #48-0991
$2.20 USD Pk
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Throttle Butterfly Shaft Seal

Throttle Butterfly Shaft Seal - Fits: Stock Mikuni BS34/BS38 CV Carburetors on all 1970-84 650's. Two per pack.


OEM Reference #
• 25-14997-00-00

Part #48-5021
$5.50 USD Pr
Add to Cart

Throttle Shaft Screws

Throttle Butterfly Shaft Screws (Pk./4) Fits: Stock Mikuni BS34/BS38 CV Carbs. XS400


OEM Reference #
• 256-14922-01-00

Part #48-5022
$2.50 USD Pk/4
Add to Cart

The name Yamaha and any other trade names or symbols belonging to each respective corporation are stated for reference purposes only. The products on this site are after market (not OEM) replacement parts and accessories only. We have no relationship to the listed companies.