markie t
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| posted on 10/3/11 at 09:29 PM |
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yamaha r1 gearbox
Hi guys i have an mk indy with a 99 4xv engine, the gearbox was getting stiff to change when coming back down the box using the clutch but not in any
particular gear, sometimes it will go in gear ok then another time i would have to push the stick forward 2-3 times before it would go in gear, going
up the box was ok with no clutch.Does anyone know what the likely cause would be ?, i have also been looking at a 2002 r1 gearbox on flea-bay and have
been informed that these are the same and will fit the 4xv, can anbody confirm/dispell this for me please, thanks.
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smart51
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| posted on 10/3/11 at 09:43 PM |
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I have a 99 4XV gearbox gathering dust in my garage if you're interested. The engine was broken for parts having worn pistons.
The cheapest on eBay is £125 plus postage. I'll let mine go at £100 for the pair of shafts and gears, plus postage plus paypal fees, or cash on
collection from Birmingham. Let me know if you're interested.
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sickbag
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| posted on 31/3/11 at 10:01 AM |
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Difficulty with engaging a gear while going down the 'box could be nothing more than a poorly adjusted clutch cable - give that a tweak and see
if it helps. After-market cables might not be as stretch resistant as OEM ones.
Also, have you tried 'blipping' the throttle on downshifts? That can help too.
Finally back on the job!
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eddie99
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| posted on 31/3/11 at 10:06 AM |
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Ive got 2 r1 engines in pieces if you want some parts u2u me. Not sure what im doing with them yet...
http://www.elitemotorsporteng.co.uk/
Twitter: @Elitemotoreng
Facebook: http://www.facebook.com/pages/Elite-Motorsport-Engineering/153409081394323
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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adithorp
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| posted on 31/3/11 at 12:18 PM |
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I'd check the linkage as well and make sure it's shifting far enough.
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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markie t
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| posted on 5/4/11 at 11:06 PM |
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finally managed to sort the problem out, turns out i have a broken lug on the back of the shift shaft assembly which holds a small spring to return
the hooked part that selects the next gear from the drum, have been told this is quite a common thing on these gearboxes, cheers for the replies.
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