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Author: Subject: 4xv clutch upgrades
metro6r4
Senior Builder






Posts 271
Registered 24/7/11
Location United Kingdom
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Building: Time Attack S2000
posted on 28/4/13 at 08:42 PM Reply With Quote
4xv clutch upgrades

Hi guys has anyone used one of these as i am considering this as part of an upgrade package I am planning for the global along with various induction upgrades.

http://www.moto-racing.co.uk/item--Barnett-Clutch-Coil-Spring-Conversion-Yamaha-YZF-R1--R1+Barnett+Conversion.html

so has anyone used this and if so are they any good? The engine is a Yamaha 4xv so if anyone uses something different/better feel free to suggest it?
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Rupturedduck
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Posts 42
Registered 28/10/12
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Building: Global GT Light
posted on 28/4/13 at 09:34 PM Reply With Quote
BARNETT CLUTCH SPRING CONVERSION KIT - YAMAHA R1 98-03 | eBay

Same item, but £6 cheaper and includes p&p

No idea about differences from standard unit and would be interested to hear benefits. You having problems or just looking for upgrade?
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Wheels244
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Location Bedale, North Yorkshire
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Building: Built MNR Vortx R1. Finishing 220BHP RedTop Locos
posted on 28/4/13 at 10:33 PM Reply With Quote
http://www.locostbuilders.co.uk/viewthread.php?tid=177379
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metro6r4
Senior Builder






Posts 271
Registered 24/7/11
Location United Kingdom
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Building: Time Attack S2000
posted on 29/4/13 at 08:23 PM Reply With Quote
No real problems but if I upgrade it before I tune the engine it wont be a problem later. If i tune the engine the way I intend to I hope to eventually have an increase of around 30% in power which will be way out of the tolerance for a standard clutch
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