• Out of stock
    Grind 59a - Increased Torque thru entire RPM range. Easy bolt on power for the XS. Web Cam Grind 59a - Valve Lift .395 Duration 290 Degree, 1974-84 650 Yamaha. Use Cam with a performance Valve Spring Kit. Available for immediate delivery @ 199.00 Each Return a good Cam core and we refund you $50.00 - Why Wait ! ( Includes a $50.00 refundable core Charge ). Part #05-0027 $249.00 Ea.
  • Sale!
    Shim for Valve Spring Seat - Original part used on cylinder head under the valve spring. Steel shim must be in place on head (often missing!) 1pc. fits below each valve spring assembly. Four required per engine. Fits 70-84. Part #05-0028 $3.80 Ea.
  • Sale!
    Performance Valve Spring Set (8 pc) with steel caps (4 pc). Special Valve caps provide maximum Cap to stem seal clearance. For use with the XS Performance #05-0025 Cam or Web cams or to replace original stock spring & cap sets. Fits: XS/TX650's 1970-84 Part #05-0029 $72.40 Ea.
  • Sale!
    Chrome engine oil delivery pipe - Oem Ref.# 256-13161-01 Fits: All 1970-84 650's. Part #05-0030 $59.95 Ea.
  • Sale!
    Shift Shaft Assembly. OEM Ref.# 256-18101-03. The clip no longer included. Fits: All 650's 1970-84. Part #05-0031 $47.95 Ea.
  • Camshaft Internal Metal Bush for Advance Rod. 2 Used per camshaft on 1970-79 models (Points Ignitions) and also required if using Boyer ignitions. Fits inside cam in center (one each side). Note: These Bushings are usually missing from 1980-84's. Part #05-0032 $3.80 Ea.
  • Out of stock
    Camshaft Internal Metal Labrinth Seal (Bushing) for Advance Rod. 2 used per camshaft on 1970-79 models (Points ignitions) and also required if using Boyer Ignitions. Fits inside of camshaft and flush with ends (one each side).Note: These are usually missing from 1980-84's. Interchangeable with part #05-0034 Needle Bearing. . OEM Ref.# 256-11155-00. Part #05-0033 $4.90 Ea.
  • Out of stock
    Camshaft Internal Cam Needle Bearing - (Upgrade/replacement for #05-0033). Mounts flush with cam ends. Fits: All 650's 1970-84 Part #05-0034 $7.95 Ea.
  • Out of stock
    XS Performance Rocker Arm Set (4) with stock type valve Adjusters - Each assembly weighs only 5 oz. Fits: All 1970-84 650's. Note: Rocker Arms do Not have the decompressor lip as used on 1972- 73 Models. Sold in Sets of 4 Only. Warning!!! These rocker arms are for use with stock camshafts or our XS Performance cams and with stock diameter valve stems. High lift cams can cause the adjuster foot to exceed its range. Part #05-0037 $71.33 Ea.
  • Out of stock
    Cam Sprocket - 36 Tooth Replacement Sprocket for our 447 Type XS Performance Cam #05-0025 Note: This sprocket does Not fit any other camshaft. Part #05-0038 $29.00Ea.
  • Shift Shaft Spring - Upper to Shift Selector Drum Arm. OEM Ref.# 90506-08007. Fits: All 650's 1970-84. Part #05-0039 $3.00 Ea.
  • Spring - Shift Selector Drum Detent Arm. OEM Ref.# 90506-10022. Fits: All 650's 1970-84. Part #05-0040 $3.00 Ea.
  • Damper Washer - Cam Chain Tensioner Rod to Spring Fits: XS1/1B (1970-72 ) 6.5mm. x 15 x 2.0mm. # 05-0041  $ 3.95 Ea
  • Out of stock
    Shift Shaft Circlip, Installs on shift shaft groove on left hand side of bike next to shift shaft oil seal. Fits: All 1970-84 XS650's Part #05-0042 $0.95 Ea.
  • Out of stock
    Cam Sprocket Bolts - Pk./2 for XS Performance Cam # 05-0025 Special 7mm. Bolts hold 05-0038 sprocket to Cam Part #05-0043 $5.55 Ea.
  • Out of stock
    High Performance Oil Pump - Double the oil volume pumped by the stock unit! Easy direct bolt in kit. Ideal for performance engines or those operating in hot climates. Fits: 1972-84 650's.   Part #05-0044 $149.95/Kit

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