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Old 10-08-2008, 04:20 AM   #1
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Default ninja jx series 21 b01

what do you guys think of this engine??
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Old 10-08-2008, 04:25 AM   #2
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i love this engine. I want one.
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Old 10-08-2008, 04:44 AM   #3
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ya i just seen the thread for this engine vs the os speed they are comparing it to the speed for smoothness and power in corners aswell as top speed which is lovely to hear sinse i just bought one and didnt know anything about it like i knew it was an os based engine and the mr ninja b01 felt really smooth so i thought id give the new jx a try and all i hear now are good things so im impressed but yet to race this thing just broke it in not even through 2 litres yet. so cant wait!!!!!
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Old 10-08-2008, 08:52 AM   #4
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You will like it. I did put the extra shim in for brake in and ran for a gallon and took it out. So far everything is going great with it.
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Old 10-09-2008, 07:20 PM   #5
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what does the extra shim do? does it make it less hard on the piston n sleeve?
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Old 10-09-2008, 09:05 PM   #6
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Great Engine! More power than an average racer can put down. Smooth, good run time.
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