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Discussion Starter #1
Bike: 2007 CBR600rr
Got into an accident with the bike and hitting the starter only results in a click. The dashboard reboots and no start.
Here's what I've already tried:
-Charging the battery
-Direct 12v to battery
-Replace oil
-Checked relay fuse
-Direct 12v to starter (would make a clunk then stop)
-Push start the bike going around 10-12mph (rear wheel would lock)
I've linked a video of my push start attempts.
Any help is much appreciated
 

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Sounds like something is stopping the engine turning over.
I'd be weary of doing any more push starts until you figure it out as you may damage it further.

Can you tell us which side and how the bike fell on? This might help us develop some theories about what is wrong.


My thinking is that the starter clunks once as it attempts to turn the crank as it engages but something is locking it up.

I assume you're starting it in neutral with the clutch in and still only getting a single click. I dont think the gearbox is locked up as it only locks up once you release the clutch and bring the crank into play.

Bike fell on its left side: Stator, gear lever, clutch - damaged in someway
Right side damage: Cam chain, cam chain tensioner, clutch

Did you notice anything wrong with the oil change? i.e. flakes/bits of metal in the old oil
 

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Discussion Starter #3
Sounds like something is stopping the engine turning over.
I'd be weary of doing any more push starts until you figure it out as you may damage it further.

Can you tell us which side and how the bike fell on? This might help us develop some theories about what is wrong.


My thinking is that the starter clunks once as it attempts to turn the crank as it engages but something is locking it up.

I assume you're starting it in neutral with the clutch in and still only getting a single click. I dont think the gearbox is locked up as it only locks up once you release the clutch and bring the crank into play.

Bike fell on its left side: Stator, gear lever, clutch - damaged in someway
Right side damage: Cam chain, cam chain tensioner, clutch

Did you notice anything wrong with the oil change? i.e. flakes/bits of metal in the old oil
Oil looked good. Bike flipped end over end then hit a tree so 360 damage. I'm going to try and remove the starter and see if it will turn when not connected to the bike.
 

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Oil looked good. Bike flipped end over end then hit a tree so 360 damage. I'm going to try and remove the starter and see if it will turn when not connected to the bike.
For confirmation, in your video is it locking when you release the clutch or when you put it into gear (select 1st/2nd with foot)? Its hard to tell.


Sounds bad. :-( Hope you're ok?

The starter sounds a good starting point.

I thought of something else you can do to confirm my theory. With the spark plugs removed you should be able to remove the cover on the right hand side of the block (assuming the 07 has one)revealing the end of the crank. This will allow you to turn the crank with a drive and socket. With the plugs removed it should turn very easily. If there is any resistance stop as you know something isnt right.

I tried looking closely on your video but its hard to tell where the damage is on the block. If you posted a picture of each side of the engine, forum members might be able to suggest whats stopping the engine turning over. I still think its a mechanical issue.
 

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Thanks for replying Recon. Pics are coming through a little small. Do you have a bigger version?
Looks like the sliders took a whack. Is it possible they have twisted and pushed something into the block in such a way that it interferes with the engine?
 

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motor doesn't look like it took any damage.

maybe hydraulic lock?

try to rotate as above, then pull spark plugs and try again?

HTH!

.
 

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Discussion Starter #11
So i bench tested the starter and it worked flawlessly. So the engine is seizing up somewhere.
Kind of lost atm.

Could you guys elaborate on how to do this

I thought of something else you can do to confirm my theory. With the spark plugs removed you should be able to remove the cover on the right hand side of the block (assuming the 07 has one)revealing the end of the crank. This will allow you to turn the crank with a drive and socket. With the plugs removed it should turn very easily. If there is any resistance stop as you know something isnt right.
Im still confused on what exactly I'm testing out.

Thanks for all the help!
 

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Your making sure the motor will rotate freely. From the video you posted trying to pop start it, it's behaving as though something is internally holding the motor from rotating. By taking the spark plugs out you won't be fighting the compression stroke while rotating the crankshaft by hand. Do that and report back!

Sent from my SM-G950U using Tapatalk
 

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Here is where the cap is located on the right hand side of the engine.



This is what you'll find beneath it.
The end of the crank. Rotate this bolt and feel for any resistance (making sure the spark plugs have been removed).
 

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Discussion Starter #15
So I attempted to take out the spark plugs this morning but failed to do so. I dont have the correct tools to get them out and i spent around 2 hours trying to get one out. What are my options from here? The engine is most likely seized so should i buy a new engine and have a mechanic swap it out for me or rebuild the engine?
 

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no, buy the right tools, get the correct manual......use your hands.

getting this one running is way easier than swapping motors.

follow advice above and then post again.

get smart and dig in....?
 

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Discussion Starter #20
UPDATE:
The bike is still not running. I couldn't take the spark plugs out but a friend said i could still try to spin the crank which i did, It spins with resistance (since i did not unplug the sparkplugs) but the bike still won't start. I've linked a very short video showing what happens when i hit the starter button. I wrecked in April and hardly have any time to really work on the bike so its been a really long process.
 
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