Hello Guys, I have been working to fix a starting issue I've had since buying this motorcycle about 2 years ago. First a little history.
At first my problem was slow crank/goes dead when bike is hot. Example I've been riding and I release the clutch to much and kill the bike. Its at 160+ F temp on the radiator. And I go to start it again and It cranks a bit but then goes completely dead. Every time I could get eventually started but I was worried at some point it would not start.
Tried new battery no go.
Tested starter seemed fine.
Replaced negative battery line to starter, fixed the problem.
I had corrosion in the cable I could not see.
This was fixed about 5 months ago.
So now to my recent issue I've noticed that while the bike is cold and its relatively cold outside it starts to crank great for about 1-2 seconds then gets weak and will kill all the electrics on the bike. Start trying to start it give it a second and try and start it still weak and will go dead again possibly. Eventually, it will start.
I just replaced the battery again as the positive terminal inside where it feeds into the battery was corroded and broke free. But I still have the same problem.
So looking for what might be wrong, what to test, what to replace etc suggestions.
A bit more on the bike its a 2008 Yamaha R1 with 55K miles on it. The only other issue I've seen is when it's really hot it likes to idle hunt between 1K and 1.5K randomly. Also at higher altitude going up a windy road and stopping at the top I've noticed that hunting is much more extreme 1K to 2.5K. Besides all that it runs great with just a slip-on exhaust replacement that is a mechanical change.
At first my problem was slow crank/goes dead when bike is hot. Example I've been riding and I release the clutch to much and kill the bike. Its at 160+ F temp on the radiator. And I go to start it again and It cranks a bit but then goes completely dead. Every time I could get eventually started but I was worried at some point it would not start.
Tried new battery no go.
Tested starter seemed fine.
Replaced negative battery line to starter, fixed the problem.
I had corrosion in the cable I could not see.
This was fixed about 5 months ago.
So now to my recent issue I've noticed that while the bike is cold and its relatively cold outside it starts to crank great for about 1-2 seconds then gets weak and will kill all the electrics on the bike. Start trying to start it give it a second and try and start it still weak and will go dead again possibly. Eventually, it will start.
I just replaced the battery again as the positive terminal inside where it feeds into the battery was corroded and broke free. But I still have the same problem.
So looking for what might be wrong, what to test, what to replace etc suggestions.
A bit more on the bike its a 2008 Yamaha R1 with 55K miles on it. The only other issue I've seen is when it's really hot it likes to idle hunt between 1K and 1.5K randomly. Also at higher altitude going up a windy road and stopping at the top I've noticed that hunting is much more extreme 1K to 2.5K. Besides all that it runs great with just a slip-on exhaust replacement that is a mechanical change.
