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| A1/A7 Crank Core http://www.kawi2strokes.com/forum/viewtopic.php?f=26&t=7409 |
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| Author: | h2racer [ Fri Dec 13, 2013 8:47 pm ] |
| Post subject: | A1/A7 Crank Core |
I need a A1 or A7 crank core. I really just need good flywheels, not worried about the rods or bearings. The crank is going to be stripped and stroked to run Yamaha rods for a race bike. Thanks Dave |
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| Author: | kawracer [ Sat Dec 21, 2013 12:28 am ] |
| Post subject: | Re: A1/A7 Crank Core |
What bike, your A1R? |
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| Author: | Gerrit [ Sun Dec 22, 2013 10:48 am ] |
| Post subject: | Re: A1/A7 Crank Core |
H1 or Jetski JS440 rods are dimensionally identical to A1/A7 rods apart from the centre-to-centre length and require only a new crankpin to be made if you don't have new A1 or A7 crankpins- no machining of the flywheels if you retain the stock 56 mm stroke. You gain some crankcase volume, which is beneficial for disc-valve engines, but do have to make spacer plates and fit longer cylinder studs, 172G0870 instead of the stocker's 172G0865. I think I have a spare set of A1-R flywheels, mail me if interested. |
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