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Old 12-13-2012, 01:44 PM   #58
Beastly Adventurer
Joined: May 2005
Oddometer: 2,348
Colourtunes work just fine on all my airheads, and the twin plug motor looks no different to the others.

FWIW the best colour is usually just out from stumble on the way in - I can tell the difference in running between about 9 and 1200 revs, but after that any difference is too small to detect, particularly if you have worked out how the gearbox works and like to keep the motor spinning 500 revs either side of peak torque.
Adelaide Hills, Australia. 93 R100 GS, 77 R75/7 ,70 BSA B44VS, , 86 R80 G/S PD, 95 BMW Funduro F650 ST
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