Make:YAMAHA                                ROCKER RATIO

Model:CS FZR                                  5 VALVE      

Ivan Tighe Engineering Pty Ltd

Tel (07) 3271 6001
Fax (07) 3271 6005

Email: sales@tighecams.com.au


Profile
Number

Advertised Timings

DURATION

VALVE LIFT

TAPPET
CLEARANCE

REMARKS
 

Ex Op.
B.B.D.C.

Ex Cl
A.T.D.C

In Op.
B.T.D.C.

In Cl
A.B.D.C

Advertised

@ 0.050”

Gross.

@ T.D.C.

Ex.

In.

  
986C

64

32

34

62

276

276

    

0.296”

0.296”

    

0.010”

0.008”

Standard

761

72

40

44

68

292

292

    

0.302”

0.302”

    

0.010”

0.008”

  

1165

70

40

43

67

290

290

250

250

0.323”

0.323”

    

0.010”

0.008”

  

761/798

72

40

48

72

290

300

    

0.302”

0.305”

    

0.010”

0.008”

Speedway.

798

73

45

48

72

298

300

    

0.305”

0.305”

    

0.010”

0.008”

Fast road

798/841

73

45

53

77

298

310

    

0.305”

0.304”

    

0.010”

0.008”

  

841C

78

50

53

77

308

310

    

0.304”

0.304”

    

0.010”

0.008”

Road race

Notes:           -Suitable for all 750cc & 1000cc Yamaha engines.

                        -Hardfaced camshafts only available.

                        -Exhaust valve springs require changing in high speed operation.