Sebspeed's 750 Slingshot discussion
Yakkitty yak
Yakkitty yak
Sebspeed's 750 Slingshot
4
I've always wanted to build a slingshot... now I get to build 2!!
This one is a 1990 750. When I got it, it had already had 07 gixxer front and rear ends grafted on. The front looks legit and the rear is not bad, but incomplete.
Once I get the chain line straight and the rear wheel centered, I'll move on to fitting an R6 tail and an MT03 headlight.
The motor is going to be mostly stock, I'm adding k&n pods and a sidewinder header. Can tbd.
Also adding some modern controls, lots of braided hoses with fancy fittings, Koso speedo, and a paint job.
While I'm taking breaks from all of that, I'll be scrubbing the frame and swingarm with Scotch Brite to give them a nice satin brushed finish.
This is how I got it:
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Paper proof of start date:
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Sprockets a bit off
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More tomorrow...
This one is a 1990 750. When I got it, it had already had 07 gixxer front and rear ends grafted on. The front looks legit and the rear is not bad, but incomplete.
Once I get the chain line straight and the rear wheel centered, I'll move on to fitting an R6 tail and an MT03 headlight.
The motor is going to be mostly stock, I'm adding k&n pods and a sidewinder header. Can tbd.
Also adding some modern controls, lots of braided hoses with fancy fittings, Koso speedo, and a paint job.
While I'm taking breaks from all of that, I'll be scrubbing the frame and swingarm with Scotch Brite to give them a nice satin brushed finish.
This is how I got it:
Paper proof of start date:
Sprockets a bit off
More tomorrow...
1 - 20 of 210 Posts
7
In order to straighten out the rear end, I started by getting the sprockets in line. To do that, I had to flush up the inside right frame rail.
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Nicey nice
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Chain is now straight
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Time to find out where the wheel is
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Nothing a 3/8" offset sprocket can't fix
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Probably going to use this one
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Nicey nice
Chain is now straight
Time to find out where the wheel is
Nothing a 3/8" offset sprocket can't fix
Probably going to use this one
4
Only got a little in on this today, was in the paint booth working on CB900 case covers.
Got back and turned up the right side swingarm spacer.
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While I was hunched over the lathe I cleaned up a spare 22mm socket to prep for milling teeth later, will be the tool to tighten the swingarm nut.
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Sprockets arrived, fitted front
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Need to trim the inside of the left frame rail to fit the arm, then mark out the frame for trim to fit chain run top and bottom.
Rear sprocket will be flipped so the relieved side fits against the wheel, this brings the chain .140" closer to the wheel/tire.
![]()
Got back and turned up the right side swingarm spacer.
While I was hunched over the lathe I cleaned up a spare 22mm socket to prep for milling teeth later, will be the tool to tighten the swingarm nut.
Sprockets arrived, fitted front
Need to trim the inside of the left frame rail to fit the arm, then mark out the frame for trim to fit chain run top and bottom.
Rear sprocket will be flipped so the relieved side fits against the wheel, this brings the chain .140" closer to the wheel/tire.
Re: Sebspeed's 750 Slingshot discussion
you still can, just make new bolt holes
you still can, just make new bolt holes
Re: Sebspeed's 750 Slingshot discussion
agreed though the seat unit looks great and 4" shorter will look even greaterererer
best answer ever!you still can, just make new bolt holes
agreed though the seat unit looks great and 4" shorter will look even greaterererer
8
In order to weld them on, I needed to figure out a way to hold each mount at the same height. I prefer fixturing vs working off dimensions and scribe lines. Fixturing always seems to turn out better.
Easiest thing to go off of was the rear set mount hole... but I didn't want to waste time cutting and drilling a temporary structure... the closest handy item did the trick
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All I had to do was cut a taper in a bolt head to center it up, and add a piece of drop to the jaws to set the height.
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Worked out well
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Top mounts next
Easiest thing to go off of was the rear set mount hole... but I didn't want to waste time cutting and drilling a temporary structure... the closest handy item did the trick
All I had to do was cut a taper in a bolt head to center it up, and add a piece of drop to the jaws to set the height.
Worked out well
Top mounts next
1 - 20 of 210 Posts
