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Old 06-16-2010, 09:18 AM   #1
Kai Ju OP
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Engine swaps- bigger is better thread

I've been looking but haven't found a thread dedicated to the fine art of engine swaps.
I've seen lots of posts in other threads but none dedicated to the art of getting the power you want into a chassis that deserves it.
I'll start with two of my own.

1986 250 Ninja with a 600 Rotax single. ( I've sold it many years ago and I think the owner might actually be an Inmate, if so, let me know, I'd like to know how the bike is doing )





and here is my current daily rider, a 1989 CB1 with a '96 F3 engine.



Both conversion roughly doubled stock horsepower and the fun factor.

Let's see your swaps.

Now that the bike is sold I'll transfer the pics from the add to here:




....and here is what it looks like today:















Here are pics I took today that show the new mirrors ( CB1000R ) and the muffler mount as well as a bunch of detail shots.



















And here is a video clip of what the engine sounds like, cold engine start.



Here is the nitty gritty:
CB-1 frame modified to accept the F3 engine with the proper support.
F3 carbs nestled between the frame rails and an F3 airbox that fits under the stock tank.
Wireharness modified to use the TPS the F3 carbs come with, correct temperature sender installed to work with the new gauges.
Full race stainless headpipes with a Ducati 1098 muffler
2007 CBR600RR forks with radial calipers and gauges from the same model.
F3 wheels front and rear with proper sprocket alignment.
CBR900RR rear shock with ST1300 spring. I will also include the stock CB-1 shock as well as the stock CBR900RR spring. The shock was rebuilt at the time the frame was stripped bare to be painted.
Wet weight is 406 lbs, rear wheel horsepower is 94.
Current mileage is just under 10,000 miles.
The fuel tank and tail section were NOS and installed when I painted the frame, swingarm, wheels and engine around Christmas a couple of years ago.

Kai Ju screwed with this post 02-20-2012 at 08:29 PM
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Old 06-16-2010, 09:30 AM   #2
plugeye
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Old 06-16-2010, 11:46 AM   #3
PeteN95
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Here is one of my old race bikes. 1980 Suzuki GS750 Wes Cooley Yosh replica with an '81 GS1100 motor.

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Old 06-17-2010, 05:21 AM   #4
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Love the CB-1! Nice work.
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Old 06-17-2010, 06:43 AM   #5
Kai Ju OP
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[QUOTE=PeteN95]Here is one of my old race bikes. 1980 Suzuki GS750 Wes Cooley Yosh replica with an '81 GS1100 motor.

Is that one still around ?
Sounds, and looks, like a hoot to ride.
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Old 02-20-2012, 09:02 PM   #6
doug s.
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bump - new pics were added today!

i wanna see more!!! any other hot rod bikes out there?

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Old 02-20-2012, 09:10 PM   #7
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Thanks for adding the pics. I'm gonna follow this thread to see what your next project is.
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Old 02-20-2012, 10:57 PM   #8
Dilligaf0220
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I kinda liked the lil' Ninja from hell in speckled Robin Egg Blue.
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Old 02-21-2012, 06:41 AM   #9
Kai Ju OP
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Girly Bike

Quote:
Originally Posted by Dilligaf0220 View Post
I kinda liked the lil' Ninja from hell in speckled Robin Egg Blue.
Me too, but I gave in to peer pressure when I chose the hammer finish grey.
That bike was a bit of a chore around town, but man in the canyons, what a hoot.

Here are a couple more pics:









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Old 02-21-2012, 07:00 AM   #10
Grainbelt
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There's a whole subforum on ADV now for builds. You might get more action there.

Some Assembly Required
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Old 02-21-2012, 07:17 AM   #11
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Quote:
Originally Posted by Grainbelt View Post
There's a whole subforum on ADV now for builds. You might get more action there.

Some Assembly Required

Thanks for the heads up, I wasn't aware of that one.
I started this thread in 2010 and only had one other inmate chime in but it caught some airtime when I put my CB-1.5 up for sale.
Funny how things work out.
If an admin wants to move it, please do so.
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Old 02-24-2012, 02:16 PM   #12
samadams0824
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that cb-1 is gorgeous
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Old 03-11-2012, 12:02 PM   #13
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I thought I had found a bigger thread on engine swaps. This is all google could scrounge up. Anyway, instead of starting a new thread, I just came across this death trap I would love to own on ebay.

Yamaha DT 250 with a CB750 stuffed in it...

I would be way into a bike like this with slightly more modern suspension and brakes. That and a real headlight. I am sure its not for everyone though.
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Old 03-11-2012, 09:28 PM   #14
Kai Ju OP
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That guy has bigger balls than I do, looks like a clean build as well.
I also like his take on some of the stuff that's out there being hailed as custom/bobbed/special etc.
His bike is.
Thanks for adding that one to the mix. Are you going to buy it ?
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Old 03-11-2012, 11:34 PM   #15
EetsOK
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I had a 1974 DT 250 and it could barley cope with the original a/c 2 stroke 250 single. Can't imagine a Honda 750.
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