calling all taffy mk4 owners

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
soullad
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Fri Jan 22, 2010 10:01 pm

Got a taffy mk4, gonna put on a TS230, so need to get an idea what gearing works best out there?

Bufficus
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Fri Jan 22, 2010 10:46 pm

How heavy is the rider?

soullad
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Fri Jan 22, 2010 10:56 pm

Bufficus wrote:How heavy is the rider?
a very light 16 stone, and its going in a series 2. :D :D

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sean brady scooters
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Fri Jan 22, 2010 11:07 pm

series 2 with the weight and areodynamics of a brieze block,with a light 16 stone rider on.
plus maybe on occasions an added passenger plus luggage...
your certainly going to need as much power as poss combined with gearing to suit you and your needs.
Sean Brady Scooters - 01765 690 698

davidblythe
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Fri Jan 22, 2010 11:25 pm

soullad wrote:
Bufficus wrote:How heavy is the rider?
a very light 16 stone, and its going in a series 2. :D :D
a heavy 15 stone, S1 with taffy 30mm phbh with filter -1mm deck clearance, widened exhaust port, matched cases, 6.5 CCR, AF flywheel, currently running 4.6, simetimes think 4.4 would be better but like the way it pulls up hills so havent changed it

soullad
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Sat Jan 23, 2010 12:00 am

Sean - it should give 22 - 23ish hp but designed for touring really so should give plenty of grunt.
4.6.....thats impressive David, you got a rev counter fitted? what revs max power etc and does pipe start limiting bout 7500ish revs?

davidblythe
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Sat Jan 23, 2010 12:20 am

soullad wrote:Sean - it should give 22 - 23ish hp but designed for touring really so should give plenty of grunt.
4.6.....thats impressive David, you got a rev counter fitted? what revs max power etc and does pipe start limiting bout 7500ish revs?

hits 78mph all day and stops, so a bit under 7500rpm but that is fine by me, was thinking of trying a shorter front pipe I have but havent yet welded a egt boss on to it

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ant
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Sat Jan 23, 2010 12:21 am

13 stone, LI S3, TS1 225 straight out of the box, 30mm VHSH with yam reed block & boyesen reeds, AF flywheel, LI150 gearbox 17/46 giving 4.6 final ratio. IIRC Sticky's book suggests 4.5 - 4.7 for Taffy Mk4 pipes so 4.6 seems spot on.

soullad
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Sat Jan 23, 2010 12:59 am

ant wrote:13 stone
Now yer just bragging............. :)

17 / 46 li150 box, 81 link chain, all sounds good to me. Gonna give it a whirl.

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