• Out of stock
    Piston Pin - (20mm Dia.), OEM Ref.# 447-11633-00 Fits: 1974-84 XS/TX 650's Part #05-0014 $8.40 Ea.
  • Out of stock
    Piston Pin Clips (Pk./2) for 447 Pistons, ( 20mm. Piston Pin ) OEM Ref.# 93450-22027 Fits: 1974-84 XS/TX 650's Part #05-0015 $3.05 Ea.
  • Piston Ring Set - Stock/Standard Size (for 1 piston). OEM Ref.# 447-11610-00-00. Fits: TX/XS650's 74-84 (447 & 533 type engines) Note: 447 type Rings interchange with European 533 Rings but pistons do not. 447 rings do not interchange with original 256 rings used on 1970-73 models. If you want to go back to a stock 650cc piston, this is the ring set you will need. If you want to replace rings on an original stock size piston this is what you need. Part #05-0016 $25.20 Ea.
  • Piston 1st. Oversize (0.25mm.) +Piston Pin & Clips. OEM Ref.#447-11635-01. Fits: 650's 1974-84 Note: Piston rings are not included in kit Part #05-0017 $35.72 Ea.
  • Piston Ring Set-1st. oversize-0.25mm. (for 1 Piston) OEM Ref.#447-11636-01. Fits: TX/XS650's 74-84 (447 & 533 type engines) Note: 447 type rings interchange with European 533 rings but pistons do not. 447 rings do not interchange with original 256 rings used on 1970-73 models. Part #05-0018 $25.25 Ea.
  • Piston 2nd. Oversize (0.50mm.) + Piston & Clips. OEM ref.#447-11636-02 Fits: 650's 1974-84  Note: Piston rings are not included in kit Part #05-0019 $45.46 Ea.
  • Piston Ring Set-2nd. Oversize-0.50mm. (for 1 Piston). OEM Ref.#447-11610-20. Fits: TX/XS650's 74-84 (447&533 type engines) Note: 447 type rings interchange with European 533 rings but pistons do not. 447 rings do not interchange with original 256 rings used on 1970-73 models. Part #05-0020 $25.20 Ea.
  • Out of stock
    Piston 3rd. Oversize (0.75mm.) + Piston Pin & Clips. OEM Ref.# 447-11637-01. Fits: 650's 1974-84 Note: Piston rings are not included in the kit Part #05-0021 $25.46 Ea.
  • Piston Ring Set - 3rd. Oversize - 0.75mm. (for 1 Piston). OEM Ref.# 447-11610-30. Fits: TX/XS650's 74-84 (447 & 533 type engines) Note: 447 type rings interchange with European 533 rings but pistons do not. 447 rings do not interchange with the original 256 rings used on 1970-73 models. Part #05-0022 $20.20 Ea.
  • Out of stock
    Piston 4th. Oversize (1.00mm.) + Piston Pin & Clips. OEM Ref.# 447-11638-01. Fits: 650's 1974-84 Note: Piston rings are not included in kit Part #05-0023 $45.46 Ea.
  • Piston Ring Set - 4th. Oversize - 1.00mm. (for 1 Piston). OEM Ref.# 447-11610-40. Fits: TX/XS650's 74-84 (447 & 533 type engines) Note: 447 type rings interchange with European 533 rings but pistons do not. 447 rings do not interchange with original 256 rings used on 1970-73 models. Part #05-0024 $25.20 Ea.
  • New XS Performance Street Cam - 447 Type - Can only be used with Pamco ignition with electronic advance as cam has no finished advance rod hole. Should be used with performance Valve springs and new rocker arms are recommended. Part #05-0025 $99.00 Ea.
  • 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, 1970-73 650 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 #05-0026 $249.00 Ea.
  • 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.
  • 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.
  • 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.

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