roadster72
Registered
Hi, I am new to the forum. Just picked up a new to me 2005 Hayabusa.
Giving the full timeline in case it helps with the issue...
When I got it the previous owner said the starter and starter clutch were bad so I replaced them. Oddly it had a short vs long starter and cover plate in there.
It came with a small battery and when I hooked it up and tried to turn the bike over it started smoking on the battery terminals and the battery got very hot.
So I figured maybe undersized battery (which is probably is) and hooked up to a large car battery.
Turns over, no fire.
I find that the fuel pump wire is broken and get that hooked up holding the plugs together with electrical tape for now until I can get a new connector.
Now, it wants to fire (hear fuel pump etc), can hear it kind of firing.
Next I crank and start blipping the throttle. Now it fires. So rev it up to a few k rpms and its running nice for a few seconds.
I look down and the battery cable extensions burned clean off the battery. Now I will mention the battery cables extensions were from a harbor freight leftover so while the thickness of the bike cables they are probably garbage inside.
Before I go back in to troubleshoot anyone see this before? My initial thought was maybe bad grounds (?). Is there a block or frame ground maybe to check? I will also try to look over the harness for bare wires etc that could be grounding out positive wires. I guess its possible it just got hot from too much cranking. The turn over but no start without throttle is the part that is also suspect.
I have done a lot with cars before including building a few from the ground up but this is my first bike. I am wondering if there is a common problem that would cause this?
I am going to mess with it again tomorrow.
Thanks for any help anyone can provide.
Giving the full timeline in case it helps with the issue...
When I got it the previous owner said the starter and starter clutch were bad so I replaced them. Oddly it had a short vs long starter and cover plate in there.
It came with a small battery and when I hooked it up and tried to turn the bike over it started smoking on the battery terminals and the battery got very hot.
So I figured maybe undersized battery (which is probably is) and hooked up to a large car battery.
Turns over, no fire.
I find that the fuel pump wire is broken and get that hooked up holding the plugs together with electrical tape for now until I can get a new connector.
Now, it wants to fire (hear fuel pump etc), can hear it kind of firing.
Next I crank and start blipping the throttle. Now it fires. So rev it up to a few k rpms and its running nice for a few seconds.
I look down and the battery cable extensions burned clean off the battery. Now I will mention the battery cables extensions were from a harbor freight leftover so while the thickness of the bike cables they are probably garbage inside.
Before I go back in to troubleshoot anyone see this before? My initial thought was maybe bad grounds (?). Is there a block or frame ground maybe to check? I will also try to look over the harness for bare wires etc that could be grounding out positive wires. I guess its possible it just got hot from too much cranking. The turn over but no start without throttle is the part that is also suspect.
I have done a lot with cars before including building a few from the ground up but this is my first bike. I am wondering if there is a common problem that would cause this?
I am going to mess with it again tomorrow.
Thanks for any help anyone can provide.