ninjette.org

Go Back   ninjette.org > 2013 - 2017 Ninja 300 > 2013 - 2017 Ninja 300 Tech Talk

Notices

Reply
 
Thread Tools
Old May 5th, 2020, 07:41 AM   #1
TAorama
ninjette.org newbie
 
Name: J
Location: TX
Join Date: Feb 2020

Motorcycle(s): Ninja 300

Posts: 2
2016 Ninja 300 Emissions Removal / Block-off Plate Advice?

Greetings all! I'm working on a 2016 EX300 track-day-only build and am considering removing the Kleen-air emissions mess. I've searched for a good tutorial and haven't seen anything really detailed or definitive as far as how it affects tuning and making other components work together with this mod, so I'll ask! I mean, I've seen the "I took the Kleen system off and installed the block off plate and my exhaust doesn't pop anymore" threads, but how does that REALLY affect the rest of the system?

The bike has a full Yosh R77 exhaust. I've got a PCV on order and I'll get the appropriate map for whatever I do and hopefully actually get it dyne tuned at some point. My debate is, initially, should I install a block-off plate for the Kleen system, and what to do with the O2 sensor? Will the PCV use the data from the O2 sensor or can I toss it? There's a bung for it on the Yosh pipe so it's NBD to keep it. Will the removal of the Kleen system cause more trouble than it's worth?

I'm good with HOW to remove the valves, tubes, etc. I just want to make sure that what I want to do to it and the components I add will not cause more harm than good. If anybody has a complete setup with good results, please let me know what you did and how you made everything work together.

Any input is appreciated! Thanks!
TAorama is offline   Reply With Quote




Old May 5th, 2020, 09:22 AM   #2
DannoXYZ
ninjette.org certified postwhore
 
Name: AKA JacRyann
Location: Mesa, AZ
Join Date: Dec 2011

Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C

Posts: A lot.
MOTY - 2018, MOTM - Nov '17
Hi and welcome to Ninjette!

Factory O2-sensor is narrowband design and only works at idle and partial-throttle to target stoich 14.7:1 AFR. Once you're into high-load operations +75%, O2-sensor is ignored and only ECU maps are used for fuel & ignition.

So PCV shouldn't be affected in any way since it's really only high-load zones that are affected by any mods you make. Factory O2-sensor is no good there and PCV can't use its data anyway. Even better is to get wideband-O2 with much more accurate feedback on AFR and PCV can use it for auto-tuning in high-load areas. Target 12.5:1 to 13.0:1 AFR for max power. Factory 300 gets an immediate +15% HP gain from leaning out factory mixtures.

As for emissions equipment, they only deal with pumping air into exhaust to clean up mixtures. It doesn't affect power in any way. So it doesn't really matter what you do. Leave it or cap it off.
DannoXYZ is offline   Reply With Quote


Old May 5th, 2020, 11:38 AM   #3
TAorama
ninjette.org newbie
 
Name: J
Location: TX
Join Date: Feb 2020

Motorcycle(s): Ninja 300

Posts: 2
Quote:
Originally Posted by DannoXYZ View Post
Hi and welcome to Ninjette!

Factory O2-sensor is narrowband design and only works at idle and partial-throttle to target stoich 14.7:1 AFR. Once you're into high-load operations +75%, O2-sensor is ignored and only ECU maps are used for fuel & ignition.

So PCV shouldn't be affected in any way since it's really only high-load zones that are affected by any mods you make. Factory O2-sensor is no good there and PCV can't use its data anyway. Even better is to get wideband-O2 with much more accurate feedback on AFR and PCV can use it for auto-tuning in high-load areas. Target 12.5:1 to 13.0:1 AFR for max power. Factory 300 gets an immediate +15% HP gain from leaning out factory mixtures.

As for emissions equipment, they only deal with pumping air into exhaust to clean up mixtures. It doesn't affect power in any way. So it doesn't really matter what you do. Leave it or cap it off.
Outstanding answer! Thanks very much for the insight!
TAorama is offline   Reply With Quote


Old May 21st, 2020, 07:08 AM   #4
JFMNINJA400
ninjette.org member
 
JFMNINJA400's Avatar
 
Name: John
Location: New Windsor
Join Date: Nov 2019

Motorcycle(s): GSXR 750, GSXR 600, Ninja 400, Ninja 300

Posts: 146
I think I will do the block off plate as well. Waiting for the after market air filter to arrive to see if the popping gets worse. I just have a MG GROWLER slip on. The popping is very minimal now. Might just get the ECU flashed instead of a full dyno tune.

If I do the block off plate and cap off the hose, will there be a check engine light?
JFMNINJA400 is offline   Reply With Quote


Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
CA Emissions removal Olie 2008 - 2012 Ninja 250R Tech Talk 19 April 30th, 2014 10:39 PM
Install Block Off Plate On The 300 cbzdel 2013 - 2017 Ninja 300 General Discussion 28 January 16th, 2013 12:48 PM
California Emissions Removal Bo0stZomb13 2008 - 2012 Ninja 250R Tech Talk 3 May 6th, 2011 02:39 PM
California Emissions Removal SdSy675 2008 - 2012 Ninja 250R Tech Talk 1 April 19th, 2011 12:27 PM
thoughts on emissions removal speedgsx98 1986 - 2007 Ninja 250R Tech Talk 8 July 14th, 2009 07:33 AM


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 01:09 PM.


Website uptime monitoring Host-tracker.com
Powered by vBulletin®
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Except where otherwise noted, all site contents are © Copyright 2022 ninjette.org, All rights reserved.