Home/Fuel System/Mikuni BS34/38 CV Mikuni Carb Slide Needles & Parts, Needle Jets, Mixture Screws
  • Out of stock
    Carb Slide Needle Clip (Pk./2). Fits: Slide Needles on 1974-84 650's with Stock Mikuni BS34/38 CV Carbs.   Part #48-0668 $0.95Pk./2
  • Slide Needle Preload Spring Spring - Slide Needle Preload Spring. OEM Ref.# 3F7-14589-00-00. Fits: Stock BS34 CV Mikuni Carbs as used on 1980-84 North American model XS650's. This spring holds the slide needle down in place in the carb slide.   Part #48-0669 $2.50 Ea.
  • Out of stock
    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 $0.95 Ea.
  • Float Bowl Drain Screw with O-Ring Float Bowl Drain Screw with O-Ring - Screw OEM Ref.# 2L1-14191-00-00 Fits: 1980-84 Stock 34mm. Mikuni CV Carbs.   Part #48-0778 $3.90 Ea.
  • Float Bowl Drain Plug Float Bowl Drain Plug. OEM Ref.# 256-14991-00-00 Fits: 1970-79 Stock 38mm Mikuni CV Carbs.   Part #48-0779 $2.95 Ea.
  • Float Bowl Screws (Pk./4) Early 5mm. Mikuni BS38 CV Carb Lid Screws with Lock Washers and Late 34mm CV Bowl Screw Pk/4.   Part #48-0991 $2.70/Set
  • Float Bowl Screws
    Float Bowl Screws - 4mm. - (Pk./4 Screws with Lock Washers). Fits: Early Mikuni CV Carb Float Bowls.   Part #48-0993 $1.90/Set
  • Carb Float Valve (Needle & Seat) Carb Float Valve (Needle & Seat) - Threaded Type. Fits: XS1/XS1b (1970-71) 650's.   Part #48-1429 $5.60 Ea.
  • Carb Float Valve (Needle & Seat) Carb Float Valve (Needle & Seat) - Push in Type With O-Ring Seal, Needle & Clip. Fits: XS650G/H/SH/SJ/SK/SL (1980-84) Stock Mikuni BS34 CV carbs.   Part #48-1445 $8.95/Set
  • Rubber Pilot Jet Passage Plug
    Rubber Pilot Jet Passage Plug (Pk/2). Used inside float bowl to seal passage to pilot Jet - 1 used per carb. Fits: XS650G/H/SH/SJ/SK/SL (1980-84) Stock Mikuni BS34 CV Carbs.   Part #48-5002 $3.90/Pk./2
  • Out of stock
    Fuel Idle Mixture Screw - (256 type). Fits: XS1/XS1b/XS2/TX650/TX650A/XS650B (1970-75) with Stock Mikuni BS38 CV Carbs.   Part #48-5008 $3.80 Ea.
  • Out of stock
    Fuel Idle Mixture Screw - (584 type). Fits: XS650C/D (1976-77) Stock Mikuni BS38 CV Carbs.   Part #48-5009 $3.80 Ea.
  • Out of stock
    Fuel Idle Mixture Screw with O-Ring. Fits: XS650E/SE/F/SF/2F(1978-79) Stock Mikuni BS38 CV Carbs. Note! Carb idle mixture screw O-Rings included may or may not fit correctly in your Mikuni BS38 CV stock carb. The O-Ring in the carb as originally supplied by Mikuni/Yamaha varies in fit and size and we have found it impossible to match or guarantee a proper fit. No alternatives can or will be supplied. The mixture screw and matching O-ring was never sold or supplied by Yamaha or Mikuni.   Part #48-5010 $4.90 Ea.
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    Fuel Idle Mixture Screw with Washer and O-Ring. Fits: XS650G/H/SH/SJ/SK/SL (1980-84) with Stock Mikuni BS34 CV Carbs. Note: This Mixture Screw is 25mm in length, there are 2 different sizes that were used. Be sure to measure your old one to confirm this is the size you require before purchasing See following 48-5012 text.   Part #48-5011 $6.95/Kit
  • Mixture Screw Kit - Mixture Screw, Mixture Screw Rubber O-Ring, Blind Plug Washer, Spring and Washer. (Includes All Contents Shown). Fits: 1980-84 XS650G/H/SH/SJ/SK/SL Stock Mikuni BS34 CV Carbs. Note: This Mixture Screw is 20.5mm in length, there are 2 different sizes that were used. Be sure to measure your old one to confirm this is the size you require before purchasing Plug covers vertical re-cessed idle mixture screw & keeps out contaminants. O-Ring fits under metal Washer at bottom of mixture screw hole and the engine will not idle properly if it is not present - (O-ring is often disintegrated). These parts are not shown in service & parts listings as Yamaha did not want "emissions" related parts accessed, however adjustments were often necessary to get New bikes to run properly. Suggested setting position of the normally hidden mixture screw is 2 1/2 to 3 turns out from bottom.   Part #48-5012 $7.95/Kit
  • Float Needle With Clip Float Needle With Clip - Viton Tipped Needle & Clip Only! Fits: XS650G-K 1980-84 Stock 34mm. Mikuni CV Carbs.   Part #48-5014 $3.95 Ea.
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