February 14th, 2016, 11:07 AM | #1 |
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Sprocket fit question
Are the sprockets the same shaft size from year to year?
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February 14th, 2016, 11:08 AM | #2 |
Vintage Screwball
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Countershaft sprockets?
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February 14th, 2016, 11:29 AM | #3 |
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Front sprocket. On the engine output shaft.
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February 14th, 2016, 12:18 PM | #4 |
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Front sprocket is the countershaft sprocket. But sorry; can't answer your question. If you search parts lists you might find if they use the same part number for the different years.
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February 14th, 2016, 12:20 PM | #5 | |
Vintage Screwball
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Quote:
The countershafts use the same output bearing which means the shaft is the same size. However, this doesn't say anything about tooth count or shaft diameter reduction where the sprocket sits. In short, I don't know either.
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February 14th, 2016, 01:04 PM | #6 |
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JT Sprockets lists different part numbers in their catalog for the front sprocket. The rear has the same part number for both generations.
so I would guess they are different. |
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February 14th, 2016, 01:40 PM | #7 |
Track Clown
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new gen is different then pre gen
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February 14th, 2016, 03:43 PM | #8 |
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sprocket offset is different from old to new.
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February 16th, 2016, 10:40 AM | #9 |
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Thanks for the info.
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February 16th, 2016, 11:01 AM | #10 |
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The sprocket shaft is the same size, both will fit on both shafts, but the newgen and pregen have different offsets, so get a 07 previous for pregen and 08 newer for newgen.
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February 16th, 2016, 11:42 AM | #11 |
ninjette.org guru
Name: Mike
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Thanks, that's exactly what I needed to know.
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February 16th, 2016, 03:30 PM | #12 |
Vintage Screwball
Name: B
Location: Washington
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BAM! Thanks!
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February 16th, 2016, 03:32 PM | #13 |
ninjette.org guru
Name: Mike
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I'm considering going -1 on the front. It's a race only bike now.
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