Ultima 100 CI, Owner'S Manual

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4
NOTE (1)
Ultima
®
engines are
supplied with 93/L
breathers operating
but the early 84/92
system is present
but plugged.
General Specifications 80” - 113”
Displacement CI 80Ci 96Ci 100Ci 107Ci 113Ci
Displacement CC/CI 1340/81.8 1564/95.5 1643/100.2 1751/106.8 1853/113.1
Bore 3.498” 3.625” 3.875” 4.000” 4.000”
Stroke 4.25” 4.625” 4.250” 4.250” 4.500”
Compression 8.75:1 9.8:1 9.6:1 10:1 10.2:1
Valve : Int 1.850” 1.850” 2.100” 2.100” 2.100”
Valve: Ex 1.625” 1.625” 1.700” 1.700” 1.700”
Cam Lift: Int .490” .520” .625” .625” .640”
Cam Lift: Ex .490” .520” .600” .600” .600”
Cam Duration 242/252 262/272 248/252 248 264/268
Pushrod Length Stock Stock Stock Stock Stock
Piston Cast Forged Forged Dome Forged Dome Forged Dome
Cylinder Length 5.550 5.565 4.995 4.995 4.995
Case Deck Height 5.375 5.375 5.875 5.875 5.875
Rod Length 7.44 7.44 7.44 7.44 7.44
Flywheel Forged 5 Pc Forged 5Pc Forged 5Pc Forged 5Pc Forged 5Pc
Case Spigot bore 3.680” 3.880” 4.255” 4.255” 4.255”
Pump Type 92/L 92/L 92/L 92/L 92/L
Breather Type 92/L (NOTE 1) 92/L (NOTE 1) 92/L (NOTE 1) 92/L (NOTE 1) 92/L (NOTE 1)
Cam Cover Type 84/89 84/89 84/89 84/89 84/89
Rocker Box Type 93/L 93/L 93/L 93/L 93/L
Rocker Arm/ Ratio 1.63 1.63 1.7 1.7 1.7
Engine Height Stock .015” Taller .010” Taller .010” Taller .010” Taller
Rated power RW 75hp/80 tq 100hp/100tq 110hp/110tq 115hp/115tq 120hp/120tq
Engine Weight 145 Lb 150 Lb 165 Lb 165 Lb 165 Lb