Kawasaki Motorcycle Forums banner
1 - 6 of 6 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 ·
2017 ninja 650 8k
I just went 14t on the front along with chain and rear sprocket replacement. First 2 engine cycles were normal enough. On the third start up I started getting flashing gear indicator without any reading except when I’m neutral along with a check engine light. My ocd is will not abide. Is there a way to fix this or am I stuck going back to stock?

Also how do you even check codes on these bikes? I’m obviously very new. Second season started today.
 

·
Registered
2011 Kawasaki ER-6F
Joined
·
446 Posts
2017 ninja 650 8k
I just went 14t on the front along with chain and rear sprocket replacement. First 2 engine cycles were normal enough. On the third start up I started getting flashing gear indicator without any reading except when I’m neutral along with a check engine light. My ocd is will not abide. Is there a way to fix this or am I stuck going back to stock?

Also how do you even check codes on these bikes? I’m obviously very new. Second season started today.
Some had a similar issue on here a couple days ago, you probably have the exact same issue, here is the thread:


Still waiting on an outcome but I reckon that as good a place to start as any.
 

·
Moderator
Joined
·
40,799 Posts
Keep it civil and on topic fellas. Bickering back and forth does not help anyone. You don't have to agree with each other but there is nothing in the last few posts that helps anyone.
 

·
Registered
Joined
·
10 Posts
You can short circuit the clutch switch and then you will never get another CEL. The downside is that you lose the clutch safety switch. This is a common trick for the latest N400 and N650 when changing sprockets. I use it on my own 2017 N650 with +1/-4 sprockets. The gear indicator will randomly come back after some miles or number of restarts. I am fairly certain this is actually an ecu/firmware bug. It only starts complaining on a random gear change, and as far as I know, it can actually affect stock sprockets but much more rare.
 

·
Registered
Joined
·
2 Posts
2017 ninja 650 8k
I just went 14t on the front along with chain and rear sprocket replacement. First 2 engine cycles were normal enough. On the third start up I started getting flashing gear indicator without any reading except when I’m neutral along with a check engine light. My ocd is will not abide. Is there a way to fix this or am I stuck going back to stock?

Also how do you even check codes on these bikes? I’m obviously very new. Second season started today.
I have never posted in an online forum before so I apologize if I am incorrect in my approach. With that being said I have a 2020 Kawasaki Ninja 650ex came stock with 15t front sprocket 46t rear sprocket and I just swapped the stock sprockets for a 14t front sprocket and 46t aluminum rear sprocket. Replaced the stock o-ring chain with a new x-ring chain at same time as sprockets. Just like you stated the first 2 test runs after changing the sprockets no issues at all. On the 3rd crank my gear indicator is now flashing and not registering any gear except for neutral (does not register neutral from time to time), the check engine light is now on, the service label flashes for the first few seconds after cranking, and the wrench shaped service symbol is also illuminated the entire time the bike is cranked and running. I have checked all wiring several times, attempted to contact Kawasaki and kept getting hung up on, and even went to the dealer I purchased the bike from and was informed by the head mechanic that it should have nothing to do with the fact that I changed the gearing but his best guess was that my shift sensor/indicator (not sure of the exact name) has gone bad. I am not sure what steps to take from here and I was wondering if you found the solution for your issue since it sounds similar to what I am experiencing. Thank you to anyone for taking the time to reply and help me out and again my apologies if I posted this incorrectly.
Thanks Guys! - Kyle Bennett
email: [email protected]
 

·
Registered
Joined
·
34 Posts
OP- I messaged you four months ago for this fix. 🤦

Anyway...

Guys it's the clutch switch circuit. Not the gear indicator sensor. No idea why this works but when you change your sprocket sizes the bike doesn't like it. Kawasaki must not have allowed this change in the ecu.

Anyway there's an idiot on this forum who will berate you and tell you it's the gear indicator switch which makes no sense because it doesn't break just because you changed the sprocket. Just short out the clutch switch and reset the trouble code and you'll be good.
 
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top