On a short ride the other day the bike just died on the road. Pulled over and when ignition turned on I get a rapid clicking from the main relay.
I found this video describing it exactly but no clues as to root cause or fix:
https://www.youtube.com/watch?v=UrC_IBfChcA
Battery is 100% charged and is holding charge. All lights work fine. Starter motor turns over fine but bike will not start. No fuel pump or exup sounds either. If I disconnect the relay the exup does cycle.
I replaced the main relay with a new one but sadly that did not fix anything. Same rapid clicking.
Any ideas are most welcome!
Thanks
3EN1 Main Relay Clicking - Bike Won't Fire Up
Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
-
- Settled in member
- Posts: 26
- Joined: Thu Feb 23, 2017 10:48 am
-
- Familiar Member
- Posts: 271
- Joined: Tue Nov 24, 2020 12:53 pm
- Bike owned: FZR400,600, CBR893
Re: 3EN1 Main Relay Clicking - Bike Won't Fire Up
I would venture a guess that it's a bad earth or a bad connection on the starter switch, the relay base or a joint in the loom. Either way, the relay is not getting a constant trigger signal but rather a pulsed one.
-
- Settled in member
- Posts: 26
- Joined: Thu Feb 23, 2017 10:48 am
Re: 3EN1 Main Relay Clicking - Bike Won't Fire Up
Problem solved! It was the connection to the fuel pump. Once I cleaned up the terminals inside the snap connector all was good again.
-
- Site Supporter
- Posts: 754
- Joined: Tue Apr 29, 2008 9:37 pm
- Bike owned: NC29 CBR600F
- Location: Lancashire
Re: 3EN1 Main Relay Clicking - Bike Won't Fire Up
Thank you for responding with your findings and your solution to the problem. It will hopefully help someone else in the future 
-
- Settled in member
- Posts: 9
- Joined: Sun May 28, 2023 5:37 am
- Bike owned: ‘90 FZR400
- Location: New Zealand
Re: 3EN1 Main Relay Clicking - Bike Won't Fire Up
Thanks mate, literally have the same problem.