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All 650's PAIR Valve Removal

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SpoonCB650R

2019
CB650R
Oct 27, 2019
Mine was supposed to get here this evening...but it didn't show up. =(
My bike is all ready for this 2 days ago.
 

SpoonCB650R

2019
CB650R
Oct 27, 2019
It's finally here. Now I can finish this project. Still missing resistors due to lock down.
As suggested by MrFritz86, I'll try to run it w/o it and see if triggers a CEL.

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SpoonCB650R

2019
CB650R
Oct 27, 2019
I completed the Pair removal and only thing I did not do is the resistor as it's delayed.
This morning, I idled the bike for about 10 mins. Got up to normal operating temp and little beyond.
I did not get a CEL. I have not gotten a chance to ride it due to the weather. Can anyone confirm it will throw a CEL without the resistor?
 

baugustine

2014
CBR650F
Staff
May 21, 2016
Ventura, CA
I completed the Pair removal and only thing I did not do is the resistor as it's delayed.
This morning, I idled the bike for about 10 mins. Got up to normal operating temp and little beyond.
I did not get a CEL. I have not gotten a chance to ride it due to the weather. Can anyone confirm it will throw a CEL without the resistor?

the conventional wisdom here is 14-16 ECMs don’t need it, 18-newer do. I left the solenoid plugged in (everything else removed). Hopefully you can confirm or deny this topic once and for all!
 

MrFritz86

2019
CB650R
Sep 28, 2019
Nashville, TN
I completed the Pair removal and only thing I did not do is the resistor as it's delayed.
This morning, I idled the bike for about 10 mins. Got up to normal operating temp and little beyond.
I did not get a CEL. I have not gotten a chance to ride it due to the weather. Can anyone confirm it will throw a CEL without the resistor?

Ride the bike and see what happens
if at idle you noticed anything odd happening, most likely the ECU doesn't need to be tricked
If riding and pushing the engine (until where the PAIR valves solenoid is supposed to open) the CEL stays off then you're fine
I don't think the ECU will realize the solenoid is not there only when is supposed to open, electronic should always warn if something is missing or faulty, but I might be wrong since I don't know how the ECU is programmed.
 

SpoonCB650R

2019
CB650R
Oct 27, 2019
Ride the bike and see what happens
if at idle you noticed anything odd happening, most likely the ECU doesn't need to be tricked
If riding and pushing the engine (until where the PAIR valves solenoid is supposed to open) the CEL stays off then you're fine
I don't think the ECU will realize the solenoid is not there only when is supposed to open, electronic should always warn if something is missing or faulty, but I might be wrong since I don't know how the ECU is programmed.

Too bad the weather today is not ideal for me to take it out for a spin. I will tomorrow and report back.
I tied the connector where it's accessible w/o taking anything apart and it'll be an easy add on once the resistor arrive this Monday.
 

FogDucker

2018
CB650F ABS
Apr 3, 2019
Canada
Riding Since
2000
Nice...glad to know. How long was the ride? Feel any difference? Just curious.
An hour or so. I had already blocked the hose with a marble. So not much of a difference. I can confirm the buzz noise in the engine is gone. Everything worked as it should. Ride was smooth and no issues whatsoever. However it stutters for 5 sec at the start up. The main reason I did it was to get rid of noise and 500 grams of junk. It was not too hard and it was not too easy breezy thing to do. Bad news if you have big or chubby hands. Very tricky to take everything out and screw the new plates back in. Almost cried on the last screw (far left). Screws on this machine is made out of butter so watch out for them too.
 

SpoonCB650R

2019
CB650R
Oct 27, 2019
I finally took out my 19 CB650R for about 20 mile ride. No engine light from the Pair Removal. I got the resistors and have yet to put'em in.
Now i'm curious who's gotten an engine light and needed the resistors.
 

MrFritz86

2019
CB650R
Sep 28, 2019
Nashville, TN
I finally took out my 19 CB650R for about 20 mile ride. No engine light from the Pair Removal. I got the resistors and have yet to put'em in.
Now i'm curious who's gotten an engine light and needed the resistors.

Glad to know you do not need the resistor, you could always send it back and save some $
How was the ride? did you fell any improvements on the engine?
 

SpoonCB650R

2019
CB650R
Oct 27, 2019
Glad to know you do not need the resistor, you could always send it back and save some $
How was the ride? did you fell any improvements on the engine?

Nah..it was like $5 not worth going thru the trouble. I'll hold on to it...just in case. Who knows...once I install the new exhaust w/o a cat it might pop up?
I honestly didn't feel any major difference. A slight better throttle response.
 
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