OzVMX Forum
Marque Remarks => Kawasaki => Topic started by: 777klx on May 18, 2016, 06:54:52 pm
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I'm building a 1980 klx250 with a custom 300 barrel and head conversion with porting and larger exhaust pipe. I'm thinking of running a 34mm mikuni carb. Any ideas how this set up will go? I'm currently running a 32mm on my other modified klx250 with only head work
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theres a member on here who may be able help Bumper
http://forum.ozvmx.com/index.php?action=profile;u=19951
https://www.facebook.com/search/top/?q=proline%20motorcycles
Well known VXMer and Motorcycle mechanic and Motorcycle shop Business Owner
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Bit late now but how are you going to stop the gearbox smashing to bits?
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FMF sold a 310cc big bore kit and 38mm EI carby for the KLX
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Been told it's running a roadbike gearbox to get around the glass original, sounds like quite a bit of work to get if in there
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Running a kz250 gearbox from a mid 80s engine with oil fed counter balancer
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All this talk about Glass gearboxes. Had a KLX brand new. No problems. Have had 3 more and raced them all. One with a 310 kit, light weight inner rotor ignition, hot cam, Mikuni, trick exhaust. Holeshoted the final against modern 4 strokes at a stadium motocross and finished third. Was a fast bike with no gearbox issues. May be some riders are gearbox friendly and some are not?
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I was wondering if a lot of it is due to the rider. Eg flat shifting or not using the clutch. Someone told me once how they use no clutch when changing gears, they had 'some way' of sensing where the gears where and would just 'pop' it into gear ::)
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just a slight button off before smashing the gear lever thru to the next ratio is helpful. I haven't used a clutch to change gears for 30 years. (except on the moto villa, it didn't like no clutch and would reselect the last gear 20 metres down the track)
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I haven't actually met anyone one who has had gearbox problems I've only heard of them,I have a problem with my current klx but I think that it's due to wear not breakage.my problem is when I down shift from 3rd to 2nd,it hits neutral so I have to click back up to get second, New bike has a fresh gearbox with no issues
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Sounds like it's been taking lessons off the CZ
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A FCR 33 or 35 Keihin pumper would work well on the KLX and make a VM Mikuni feel a bit antique. I have a one of these on a 150 cc 2 valve Honda single and it's responsiveness, ease of tuning and power increase over a PWK type flat slide was considerable.
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Ordered a 34mm flat side last week just waiting for it to turn up