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Author Topic: Mk6 Bultaco  (Read 5518 times)

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Offline steve234

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Mk6 Bultaco
« on: July 11, 2016, 12:31:34 pm »
Any mk6 pursangs out there? Looking for a 125 but will consider others.

Cheers,
Steve
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Offline bigk

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Re: Mk6 Bultaco
« Reply #1 on: July 12, 2016, 10:51:29 am »
What about a MK7 125?
K
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Offline steve234

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Re: Mk6 Bultaco
« Reply #2 on: July 12, 2016, 08:25:22 pm »
Bigk,
Pm sent.
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Offline jas150

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Re: Mk6 Bultaco
« Reply #3 on: September 16, 2016, 01:01:12 pm »
Are you still looking for a Pursang Mk6 125? I have one I am considering selling.
Cheers
John
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Offline steve234

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Re: Mk6 Bultaco
« Reply #4 on: September 16, 2016, 05:16:00 pm »
G'day John, I did pick up a 125. A mk7 came up so I grabbed it. Soon as I did a number of bullies became available. Most I have seen at 1 time. The one I picked up looks good but really isn't. Send me a pm with some details and pictures if you have any.

Cheers,
Steve
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Offline jerry

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Re: Mk6 Bultaco
« Reply #5 on: September 16, 2016, 05:56:40 pm »
FYI 250 head and barrel fit straight on, bottom end identical on 250 and 125 for MK 6 and MK 7 ( and maybe MK8 but I'm not 100% sure) just add 36 mm Mikuni and CDI for guaranteed happiness. Please note 360 conversion not an option. An option maybe? Cheers Jerry
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Offline Daryl Jones

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Re: Mk6 Bultaco
« Reply #6 on: September 16, 2016, 10:39:43 pm »
Different balance factor between 125 crank & 250, big difference in piston weights.

Cheers, Daryl.
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Offline jerry

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Re: Mk6 Bultaco
« Reply #7 on: September 16, 2016, 10:48:32 pm »
Aren't the cranks the same weight? J
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Offline Moto

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Re: Mk6 Bultaco
« Reply #8 on: September 17, 2016, 08:15:27 am »
There was a big difference in holes in the crank for different models.You can change the barrels as you say,but ideally change the crank.All the other bottom end parts are the same.Don't forget to change the timing and carb.
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