Question about 2013 kawasaki Concours 14 ABS

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Motorcycle loses power and just revs when accelerating

I just got done switched out my stock 40mm throttle bodies for zx14 47 mm throttle bodies. I also put in Factory Pro mid-range velocity stacks, and a Dynojet Autotune. Bike sounds great when started up. Going slow in any gear is fine, but when I go to accelerate, the bike just revs as if I was in neutral. At first I didn't have the throttle body assembly clamps tightened correctly, but I went back in and fixed that, and everything seemed fine when I went for a short ride last night. Today, everything was fine for the first 10 minutes, then the same problem started happening, and as more time went on, it started happening at lower and lower rpms and less and less acceleration, til I could only go at a steady pace around 3500 rpm.

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  • 293 Answers

The problem is not your tuning, it is your clutch. Motorcycle clutches are maintained as light as possible to stop heavy pressure on your fingers. often when you increase hp, you must increase your spring pressure on your clutch plates so the first thing is to adjust your clutch, if it is too tight it will slip under load (more load = more slip). second,clutches do wear out so if adjusting does not work you will have to inspect your clutch plates for wear and may even have to increase your spring pressure, this is a big job and you will need special gear to do it

Posted on Nov 25, 2013

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Posted on Jan 02, 2017

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  • 2336 Answers

SOURCE: backfire

Yes, it could (and probably is) be an air leak. Check to be sure the carb is tight in the intake manifold, and make sure the hot-start isn't loose and is sealing properly. Also make sure all of the exhaust system joints are tight, an air leak in the exhaust will make a four-stroke pop and backfire like an old work truck with no muffler...

Posted on Nov 10, 2008

  • 2336 Answers

SOURCE: backfire

Yes, it could (and probably is) be an air leak. Check to be sure the carb is tight in the intake manifold, and make sure the hot-start isn't loose and is sealing properly. Also make sure all of the exhaust system joints are tight, an air leak in the exhaust will make a four-stroke pop and backfire like an old work truck with no muffler...

Posted on Nov 10, 2008

  • 850 Answers

SOURCE: Pulling

adjust the slack in the brakes as too tight can make the brakes ht & expand thus engage slightly!

Posted on Jul 26, 2009

  • 10 Answers

SOURCE: Pops out of 1st gear under acceleration.

Hi Buddy
There is not an easy solution to your gearbox problem,it is general wear on the 'dogs' or 'shift drum'..The only other thing it could be is wear on the 'external shift mechanism'.
I,ve just rebuilt a 1996 vn1500 classic whitch had the same problem so if you need any advise or step by step photos please email me at 'pjuma@hotmail.co.uk'
paul

Posted on Aug 23, 2009

  • 8 Answers

SOURCE: bike backfires,dies,restarts runs fine

your carbs are dirty. and probably need to be balanced also... bring the bike bto a garage and have them cleaned by a profesional.... also after market pipes don't give your bike the proper back pressure .. that can mess up your carbs timing

Posted on Dec 12, 2009

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