ninjette.org

Go Back   ninjette.org > 1986 - 2007 Ninja 250R > 1986 - 2007 Ninja 250R Tech Talk

Reply
 
Thread Tools
Old June 13th, 2022, 05:50 AM   #1
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
Koso gauge problem

Hi, I just installed a koso d48 gp style rpm gauge to my eliminator 250, but the problem I'm having is it says the bike is 4k rpm at idle?

Its connected to the stator coil positive lead.

I have played round with the settings but nothing fixes it, does anyone have any experience with these gauges?
BloodFX is offline   Reply With Quote




Old June 13th, 2022, 09:04 AM   #2
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
I think you want to connect to coil's trigger line coming from ignitor?
Have link to manual?
Also is there #cylinders setting? 2/4/6/8?
DannoXYZ is offline   Reply With Quote


Old June 13th, 2022, 12:33 PM   #3
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
https://www.kosoeurope.com/en/instru...5000-rpm-black

It says there is piston settings, but I only see a 1 2 3 4 option and the scale chart, I tried them all and 4 is only thats close to working.

Its connected to yellow wire from stator like diagram shows.
BloodFX is offline   Reply With Quote


Old June 13th, 2022, 04:14 PM   #4
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Try some other configurations. Connect brown RPM wire to one of following:

B. Please connect RPM wire (type B) to connect to ignition coil positive pole. This would be red wire on either ignition coil

D. Please parallel RPM wire (type A) with original tachometer signal wire. (This method is available only when original speedometer comes with tachometer on it.) This would be black wire on left #1 ignition coil that drives factory tach.
DannoXYZ is offline   Reply With Quote


Old June 14th, 2022, 07:25 AM   #5
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
I Connected it to the left coil green wire and it looks accurate now?

Not sure if wiring is correct, top tab has green plastic around it with green cable plugged in and bottom has red cable plugged in?
BloodFX is offline   Reply With Quote


Old June 14th, 2022, 08:57 AM   #6
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Yeah, that should work. Tachs usually aren't too picky, just needs some level triggers. What # cylinders did you end up using?

Technically, there's difference in how coil performs with power on top vs. bottom, but really doesn't appear to affect performance.
DannoXYZ is offline   Reply With Quote


Old June 14th, 2022, 09:22 AM   #7
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
I set to scale 2 like the manual says now rpm sits around 1500 at idle?

It has pulse positive and negative setting, can't remember which I set it to, but its defo working.
BloodFX is offline   Reply With Quote


Old June 14th, 2022, 06:15 PM   #8
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Yup, about 1300-1500rpm works for idle. Better little high than too low as lower oil-pressure will chew up cams.
DannoXYZ is offline   Reply With Quote


Old June 16th, 2022, 02:08 AM   #9
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
Smile

Thanks of the help and suggestions guys, appreciated as always.
BloodFX is offline   Reply With Quote


1 out of 1 members found this post helpful.
Old June 16th, 2022, 04:36 AM   #10
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
Just when I thought it was fixed, took it for ride for first time and now it won't go past 6k rpm?
BloodFX is offline   Reply With Quote


Old June 16th, 2022, 06:28 AM   #11
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
maybe need to use #2 setting. Verify actual RPMs with factory tach.
DannoXYZ is offline   Reply With Quote


Old June 16th, 2022, 10:34 PM   #12
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
Quote:
Originally Posted by DannoXYZ View Post
maybe need to use #2 setting. Verify actual RPMs with factory tach.
It doesn't have a factory tach.
BloodFX is offline   Reply With Quote


Old June 19th, 2022, 05:40 AM   #13
BloodFX
ninjette.org member
 
Name: Dude
Location: Earth
Join Date: Jul 2018

Motorcycle(s): kawasaki eliminator 250 d4

Posts: 89
Scale 2 is same as before shows the bike idling at 10k?
BloodFX is offline   Reply With Quote


Old Today, 04:54 PM   #14
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T EX250F-street Ninja250R-race CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR VFR750F

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Hmm, that's no good. Might need 1K-ohm resistor in-line to clean up signal.
DannoXYZ is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
need help with koso gauge Old Lemon 2008 - 2012 Ninja 250R Tech Talk 8 August 13th, 2012 01:04 PM
How long have you had your Koso gauge? CThunder-blue 2008 - 2012 Ninja 250R Farkles 8 July 10th, 2012 01:40 PM
GB Koso Gauge Brackets gt_turbo Motorcycle-related 26 June 15th, 2012 11:54 PM
Koso gauge and clipons randomwalk101 2008 - 2012 Ninja 250R Tech Talk 0 November 7th, 2010 08:00 AM
Koso gauge randomwalk101 Motorcycle-related 7 November 5th, 2010 07:28 PM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


Motorcycle Safety Foundation

All times are GMT -7. The time now is 08:01 PM.


remote server monitor
Powered by vBulletin®
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2022 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are Copyright 2022 ninjette.org, All rights reserved.