Maybe - maybe not - but try the maths on those I listed......
Chew on this for a while....
Model C.I. C.C. Bore mm Stroke mm B.H.P. Kw LBS. H L Idle Max RPM
009 2.23 36.6 36 36 1.6 9.0 - 1 2,800 10,500
009 L 2.45 40.8 2.0 9.0 - - - 10,500
011 2.45 40.8 - 9.7 - - - -
015 1.95 32 - - - - - 12,500
017 1.84 30.1 37 28 1.6 - 1 3,200 -
018 1.94 31.8 38 28 1.9 - 1 2,800 -
019 T 2.14 35.2 40 28 1.8 - 1 2,800 -
020 T 2.14 35.2 40 28 2.2 - 1 2,800 14,000
020 1.96 32 - - - - - 12,500
020 Super 2.15 35.2
021 2.14 35.2 40 28 2.0 - - 1 2,800 -
023 2.44 40.2 40 32 2.6 - - 1 2,800 12,500
025 2.76 45.4 42.5 32 3.0 - - 1 2,800 -
024 2.54 41.6 - - - - - 13,000
026 2.96 48.7 44 32 3.2 - 1 2,800 14,000
028 2.9 47.0 - 11.7 - - - 12,500
030 2.7 45
031 3.2 48 - - - - - 12,000
032 3.11 51
034 3.4 56.0 - 11.6 - - - 13,500
034 Super 3.75 61.5 48 34
036 3.75 61.5 48 34 4.5 1 1 2,800 13,500
038 various 3.7-4.4 61.0-72.2 - 14.8-16.7 - - - 12,000
041 3.72 61 - - - - 2,800 11,000
041 Super 4.4 72
044 4.31 70.7 50 36 5.4 7/8 1 2,500 13,500
* the 044's piston and cylinder was improved in late 2000 model year and upped the power rating from approx. 5.1 hp to 5.4 (3.8 kw to 4.0 kw)
045 4.58 75
046 4.67 76.5 52 36 6.1 1 1 2,500 13,500
050 5.42 89
051 5.42 89
056 4.94 81 - - - - - -
056 Super 5.3 87
064 5.2 85.0 52 40 6.5 4.8 15.2 - - 2,400 12,000
066 5.59 91.6 54 40 6.8 5.0 - 1 1 2,500 13,000
066 M 5.59 91.6 54 40 7.2 5.4 - 1 1 2,500 13,000
075 6.77 111
076 6.77 111
084 7.44 122 60 43 8.2 12,000
090 6.47 137 66 40 8,000