Gen2 copart special: redemption

Bumblebee said:
You know I've done what you are doing now....I picked up a crashed '89 GSXR1100 Slingshot once long ago with 500kms on it for basically pennies..

I slowly pieced it all back together...it seemed like each time I got a system working good, a problem would pop up with another one.....and that bike was simple.

I finally got it running perfectly and looking like it should and didn't even get a license plate for it when a guy I knew HAD to have it and price was not an object...needless to say-off it went.

I did a similar thing with a little Yamaha Daytona Special I found in a farmer's front lawn with grass growing past it's handlebars...got that for $400 and spent a couple months making it a crazy, nut case of a bike-but got to ride that for a little while before selling it off. The guy who bought it decided to enter it in vintage racing and totaled it...at least he was way out in first place before doing it...

It was fun to have a project like these so I feel what you are doing.
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YES! You totally get it. It's just fun man. It's not the most effective use of time, or money...but when you get it working it feels soooo good.

I just got the ECU error codes to display and I'm going through them.

First it gave me a C23 (Tip Over Sensor). I did a full diagnostic, including checking voltage when bike leaned and it worked. So then I just sort of blew on the plugs and plugged everything back together...no more C23.

Now it's giving me a C41 (Fuel Pump Relay). Well, the fuel pump relay is smashed into little bits so...I think that code is legit.

I jumped the YR & RBL pins together on the connector for the fuel pump relay and the fuel pump started pumping fuel, so that's a good sign!!

Now I'm trying to figure out how to start the bike without having a working fuel pump relay :)

I'm really happy that the ECM seems solid though, I was afraid of that.
 
I would deal with the bent frame and figure out how to fabricate a aftermarket tail. A lot of work and $$$ to replace a frame you buy a 2012 frame now you have a 2012 bike. I’m sure your not doing any of this to resell it so might as well use excuse to make it your own.
 
Mathewrussell52 said:
I would deal with the bent frame and figure out how to fabricate a aftermarket tail. A lot of work and $$$ to replace a frame you buy a 2012 frame now you have a 2012 bike. I’m sure your not doing any of this to resell it so might as well use excuse to make it your own.
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Shoot do you even need the tail? Just make enough to fit your seat and leave the rear tire open :p
 
BlueBacon said:
Shoot do you even need the tail? Just make enough to fit your seat and leave the rear tire open :p
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Mad Max style.....paint the whole thing fat black and wear horns on your helmet....

....oh wait, that's been done already...

download.jpg
 
BlueBacon said:
Shoot do you even need the tail? Just make enough to fit your seat and leave the rear tire open :p
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Someone that actually knows can say but I think what’s bent on yours drag racers cut off.

this is how I would do it instead of having the frame bolt to the back of frame extend it to where it bolts in to the front where the seat bolts in. It’s steak so it’s not like it’s hard to work with. Unless you plan on putting 220+ lbs on it I wouldn’t worry about it.
 
I'm friends with a guy who runs a local shop - does a lot of work on Suzuki's. He says he welds broken subframe tabs every time. The bigger issue is the bend, says real risk it snaps if you try to bend back.

He gave me a local aluminum guy who does a lot of cast aluminum work and I'm going to see what he thinks.

After talking to the shop owner I am not inclined to throw away the frame over this.
 
amirpc said:
I'm friends with a guy who runs a local shop - does a lot of work on Suzuki's. He says he welds broken subframe tabs every time. The bigger issue is the bend, says real risk it snaps if you try to bend back.

He gave me a local aluminum guy who does a lot of cast aluminum work and I'm going to see what he thinks.

After talking to the shop owner I am not inclined to throw away the frame over this.
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...hopefully you have some luck as technology working with aluminum has improved leaps and bounds...

Barring all this, another frame is possible...I wouldn't just cobble something together on a bike like this...it has to be done right.
 
Do you have new fairings, if so I have a few questions. where did you get them and how is the quality, fit and finish. and the last question if applicable is how much. Thanks. Gary
 
amirpc said:
I'm friends with a guy who runs a local shop - does a lot of work on Suzuki's. He says he welds broken subframe tabs every time. The bigger issue is the bend, says real risk it snaps if you try to bend back.

He gave me a local aluminum guy who does a lot of cast aluminum work and I'm going to see what he thinks.

After talking to the shop owner I am not inclined to throw away the frame over this.
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There is no way I personally would ever feel 100 percent safe with welding any part of the aluminum frame and with having spent some time working in collision shops on cars i feel like if there was enough force to snap that then it probably bent it as well. Maybe not enough to see but I would just always feel like something wasn't right. I know a frame replacement is some work but I feel like that engine is gonna run and if the forks and stuff aren't bent then frame replacement would be the way I would go but it's your project so just keep posting away with the build so we can keep up with your adventure :thumbsup:
 
Bumblebee said:
...hopefully you have some luck as technology working with aluminum has improved leaps and bounds...

Barring all this, another frame is possible...I wouldn't just cobble something together on a bike like this...it has to be done right.
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I agree if it feels rickety - new frame.


Dopey said:
There is no way I personally would ever feel 100 percent safe with welding any part of the aluminum frame and with having spent some time working in collision shops on cars i feel like if there was enough force to snap that then it probably bent it as well. Maybe not enough to see but I would just always feel like something wasn't right. I know a frame replacement is some work but I feel like that engine is gonna run and if the forks and stuff aren't bent then frame replacement would be the way I would go but it's your project so just keep posting away with the build so we can keep up with your adventure :thumbsup:
Click to expand...

Yeah the main thing is like...I don't want to have to sell this as a 2008 bike. It's a 2020. Even with the weld it's just the subframe, and it has 3 other attachment points. It seems hard to imagine to me that it would somehow break catastrophically. But I hear you, it will probably bug me.

I gotta trailer it over to the welding guy and see what he says first.
 
I think the ECU may be fried, probably I did it. Not sure.

But, basically I get a C41. I tested the relay, tested all the connections. The ECU doesn't seem to be taking the fuel pump relay control line (Pin 39 yellow/black) to ground when it should, it just stays high. If I ground out that line directly, everything works.

Here's a video of me testing that:

More details here: Dead ECM? C41 | Busa problems

Questions:

1. Does this seem like a fried ECU?
2. Which years are compatible with a '20? I have a line on a '15 ECU.
 
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