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Heavier or lighter flywheel better for Dirt Track?
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Topic: Heavier or lighter flywheel better for Dirt Track? (Read 2557 times)
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mboddy
A-Grade
Posts: 443
Canberra
Heavier or lighter flywheel better for Dirt Track?
«
on:
July 05, 2008, 07:40:24 pm »
I am building my 400 Dirt Track bike.
I have a choice of a IT400D flywheel or a lighter YZ400D flywheel.
Which is better for Dirt Track?
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Vinduro Penrite Team
1980 Yamaha IT125G, 1979 Yamaha IT175F, 1984 Yamaha IT200L, 1977 Yamaha IT250D and IT400D
Noel
Legend
Posts: 953
Re: Heavier or lighter flywheel better for Dirt Track?
«
Reply #1 on:
July 05, 2008, 08:11:23 pm »
Depends Who you talk to.
But I think the theory is that a heavy flywheel calms the revs a bit to give better drive without spinning up the back wheel
Maybe It would depend on the track surface?
Cheers
Noel
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mx250
Guest
Re: Heavier or lighter flywheel better for Dirt Track?
«
Reply #2 on:
July 05, 2008, 08:54:40 pm »
I'm with Noel - depends on your style/preference and track conditions. Either experiment to find what you like or set it up to quickly go from one to the other.
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pancho
Legend
Posts: 2375
Re: Heavier or lighter flywheel better for Dirt Track?
«
Reply #3 on:
July 07, 2008, 09:09:12 am »
i agree with noel plus lighter fly wheels make it harder to hold a smooth slide they tend to chop in and out of the slide as they break traction and then regain it
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dont follow me i'm probably off line!
YUMASTEPSIDE
Legend
Posts: 802
Re: Heavier or lighter flywheel better for Dirt Track?
«
Reply #4 on:
July 09, 2008, 08:35:03 am »
I use a ported Matador motor and the heavier enduro flywheel makes it pull like a freight train out of the corners and makes it very smooth to ride compared to the pursang motor.
Roger
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mboddy
A-Grade
Posts: 443
Canberra
Re: Heavier or lighter flywheel better for Dirt Track?
«
Reply #5 on:
July 13, 2008, 05:47:05 pm »
Thanks guys. I'll go with the IT400.
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Vinduro Penrite Team
1980 Yamaha IT125G, 1979 Yamaha IT175F, 1984 Yamaha IT200L, 1977 Yamaha IT250D and IT400D
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Heavier or lighter flywheel better for Dirt Track?