Jump to content

8th gen vfr800 wont start


Recommended Posts

  • Member Contributer
On 10/7/2023 at 12:31 PM, conwaychris626 said:

2014 vfr800 fuel pump doesn’t prime and wont turn over. Also not showing what gear it’s in just blank lines

 

How old is your battery?

First and foremost make sure your Battery is fully charged and healthy, any doubts, charge it and have it load checked, any good Automotive parts store will load check it for free. Battery terminal voltage is NOT a true indication of battery Capacity - it's ability to deliver plenty of cranking amps when starting. Also make sure the battery terminals are Clean and Tight.

 

Just curious, is your Neutral Light working? And, does the engine crank over with the SideStand UP and Clutch Pulled In? And.........is the Kill Switch set to RUN?

 

Let's know how you get on.

 

 

Link to comment
Share on other sites

  • Member Contributer
Just now, conwaychris626 said:

Yea it’s blown

Ok lets hope it was just a random fuse fail. See what happens with a replacement. Good Luck.

Link to comment
Share on other sites

  • Member Contributer

Ok you have at least found the problem, a short somewhere. Give me some time to have a good look at the diagram. Do you have a multimeter, or a few spare 10amp fuses?

Link to comment
Share on other sites

  • Member Contributer
23 hours ago, conwaychris626 said:

Does the horn stop start effect it not starting?

 

Absolutely..........

Loss of this Fuse means No Kill Switch Power = A dead Engine Stop Relay and No power for the Starter Relay and all the EFI stuff.

 

It also messes with Starter Inhibitor Relays 1 and 2 screwing your Neutral Light.

 

And because your ECM is now unpowered there can be No Gear Selection readout, equals just a dash just as you have. And no Fuel Pump prime.

 

Have You in any way altered the angle of the Front Brake Switch assy OR fitted after market Brake levers?

Link to comment
Share on other sites

  • Member Contributer
2 hours ago, conwaychris626 said:

I changed levers months ago but I can check the wires on the brake switch in the morning 

 

Yep, make sure that the brake switch wires/contacts are in no way touching anything metal, eg brake master cylinder or handle bar. This will blow that Fuse! Carefully check this.

And, because its happening without touching the brake lever it would have to be the Black/Red wire of the Brake Switch that was shorting to frame.

 

Failing a brake switch wire short,  you will need to measure the short to frame with an ohmeter at the Fuse Load Side terminal, then start removing items hanging off the fuse until the short indication hopefully disappears.

Good Luck.

Link to comment
Share on other sites

  • Member Contributer

Let me just say Grum is an invaluable resource here-taking his time and effort to help others troubleshoot their VFR woes.  Kudos to Grum.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy.