RE: vfr Digest, Vol 30, Issue 19

Hey, I was paying attention, but you beat me to the punch. I also had a
Ninja 250, and played with the carbs a bit, ended up putting UNI filters on
it and playing with the jetting.

I was going to say your idle issue sounded like a lean idle, and you should
check the mixture screws. Mine had also been unblocked and fiddled by a
previous owner. I think some people that don't understand how carbs work
decide that the mixture screws set the mix for the whole operating range,
and if they just turn them a bunch they will get more fuel, and therefore
more power, throughout the range. Instead they get a Ninja that is hard to
start and idles like heck.

Enjoy the 250, it is a nice counterpoint to a VFR... low power but also very
lightweight. A very fun bike ride around town or on the backroads, but I've
heard there are a few who put serious touring mileage on them. Check out
www.ninja250.com for more info. Hardcore bunch of 250 fans.


Mike

Message: 6
Date: Thu, 7 Sep 2006 21:37:48 -0400
From: "Joe Cargal"
Subject: RE: NVFRC: Ninja 250 Carb Troubleshooting
To:
Message-ID: <008401c6d2e7$63eea3a0$0402a8c0@xxxxxx>
Content-Type: text/plain; charset="us-ascii"

I don't think anyone is paying attention (or has worked on Kawi junk before
;)...but a quick update. I just found out that the guy's bike I am working
on, has been taken apart before by his buddy. I took pictures of the carbs
before I took them apart to clean them, and I did notice that one of the
idle mixture screws was screwed all the way in. Thinking this was an odd
factory setting, I left it that way.

Turns out that the guy had no freakin idea what he was doing, and turned one
mixture screw all the way in and the other 5 turns out after popping off the
idle mixture screw plugs that Keihin put there to try and keep dopes like
this guy's friend out of a sensitive area.

At least I can adjust the idle mixture screws without having to disassemble
the bike again...just need a stubby screwdriver.

I swear...I'm sure you mechanic types get problems like this all day long
every day. I sure could charge good money doing this for a living, stealing
service from the dealerships for 3/4 price...

Thanks to all reading along.

Joe

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