Author Topic: my small displacement APS build  (Read 12446 times)

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Offline sofadriver

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my small displacement APS build
« on: April 08, 2014, 11:50:31 PM »
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this is just a test

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« Last Edit: April 08, 2014, 11:57:46 PM by sofadriver »
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #1 on: April 09, 2014, 12:01:41 AM »
Yippeeeeee - I got this thing to work!
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #2 on: April 09, 2014, 12:09:55 AM »
OK
For real now;

After my last track day in May 2013 I came to realise that those days are over. Old age, slow reactions, poor eyesight, etc., etc. I sucked at it anyhow. Sold the 2nd to last Ducati (they will bury me with my beautiful 1996 Ducati 900 SS/SP) and, since we had already planned a road trip to Speed Week anyhow, decided to jump in with both feet. (see my motto at the bottom of each post)

I started with this 1993 Honda RS125 factory GP bike. Tip: never buy a fully functional motorcycle with the intent of building an APS bike because half of it won't be there when you're done. BTW, If you know anyone searching for a whole bunch of used RS125 parts please let me know.  :roll:


« Last Edit: April 09, 2014, 01:47:08 AM by sofadriver »
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline tauruck

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Re: my small displacement APS build
« Reply #4 on: April 09, 2014, 01:03:08 AM »
All true.

I guess you might get away with eroded reactions in a race car but on a bike not so much.

I have the biggest respect for bike racers no matter what level they compete at.

You've done a fine job on your project and I hope you have a great time with it. :cheers: :cheers: :cheers:

Mike.




Offline sofadriver

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Re: my small displacement APS build
« Reply #5 on: April 09, 2014, 01:37:32 AM »
crap...........................i just spent an hour uploading pics and then lost them all.  :x I really hate this Windows 8
more later
I'm going to bed
« Last Edit: April 09, 2014, 01:40:04 AM by sofadriver »
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline tauruck

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Re: my small displacement APS build
« Reply #6 on: April 09, 2014, 01:38:49 AM »
I still use XP :-D

Offline Peter Jack

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Re: my small displacement APS build
« Reply #7 on: April 09, 2014, 01:57:56 AM »
You just lost Microsoft support today Mike!  :roll: :roll: :roll:

Pete

Offline Nortonist 592

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Re: my small displacement APS build
« Reply #8 on: April 10, 2014, 10:59:55 PM »
You just lost Microsoft support today Mike!  :roll: :roll: :roll:

Pete

I've had Microsoft XP for years and I've been going to Bonneville for years.  Never got any support from Microsoft.  So I don't think it will be missed.
Get off the stove Grandad.  You're too old to be riding the range.

Offline sofadriver

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Re: my small displacement APS build
« Reply #9 on: April 12, 2014, 01:08:37 AM »
My apologies for all these links but they are all from the "Dropbox" app.  Pretty cool but I understand that there's no actual picture stored somewhere - just some links floating around in the "cloud"


So I started with this.......

https://www.dropbox.com/sc/vaokisjrf6bj1d6/YYIRFui9pJ

Added 7" to the swingarm (wish I'd added more).........

https://www.dropbox.com/sc/2ou5dykl11tul0u/VPYhL8jOdg

Replaced the seat subframe to make it lower and narrower so I could get my knees together. Added the adjustable front fairing stay tube. It can slide forward and back. Since the fairing nose slants back I was able to adjust the finished nose height by sliding that tube in and out.
https://www.dropbox.com/sc/g3ny4hkq2fvkq7v/13nATKY-12

« Last Edit: April 12, 2014, 02:21:43 AM by sofadriver »
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #10 on: April 12, 2014, 01:21:14 AM »
Glassed up a front fender but eventually decided against using it.

https://www.dropbox.com/sc/o6gi7nrnv6kofkj/D2r5-kcUjL

The first of about 60 tapered, thin plywood sticks over ribs. Using strips 1" wide at one end and 1/4" wide at the other allowed more bending at the front end and I got a naturally aerodynamic shape. I didn't use enough ribs, though (which I paid for later)

https://www.dropbox.com/sc/zbfzctr718p3w57/odQimasZPc

Strips on and being covered with masking tape. The start of a very steep leaning curve!

https://www.dropbox.com/sc/axz0v2xu77z9z6b/WTpBGVILpn
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #11 on: April 12, 2014, 01:36:57 AM »
View from the storage loft. I used a 1:7 width to length ratio. Full length it would have been well over 10". Chopped off at 9 1/2" behind the tire, it's 95".

https://www.dropbox.com/sc/uv19katev77f7x2/P9Q7V5-PTl

Glassing begins. Another big learning experience. I've a done lot of fiberglass boat repairs but making a body from scatch around a motorcycle was a whole different deal!!

https://www.dropbox.com/sc/m3fe6mfvkyeu67i/yXVwCgZndC

It looked great until I color sanded.  UGH!. The start of 2 months of pain! Seatback is in and chestbed (I just made that word up) is laid over the gastank.

https://www.dropbox.com/sc/7au90k74as5nf8n/pfIAxxaL6f
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #12 on: April 12, 2014, 01:46:09 AM »
After rough cutting the tail from the rest of the body, I began fitting it to me.

https://www.dropbox.com/sc/ee9fx7m4mw4kpbp/PRQ5Mh8XPW


Looking over the gas tank I made from a length of 2x6 alum. square tube at the APS tail.

https://www.dropbox.com/sc/1o8sxqgig6q3d0z/FLCVB1K4we


Fitting me into the body.

https://www.dropbox.com/sc/4yvrwwiyajl3ge0/8jRBlzJL9j
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #13 on: April 12, 2014, 02:04:23 AM »
View of the front end. I overworked a lot of brain cells thinking this up!
I rented a bunch of those big carpet drying fans and jerry-rigged a wind tunnel. I was really pleased with the results. All my little tufts of yarn attached to the body went straight back. Only the salt will really confirm the slipperyness.

https://www.dropbox.com/sc/zs0hea5q7rpjfz7/tuQHXyyg_I

https://www.dropbox.com/sc/5t5iup8d3pqimv3/wx73yF1bD0

That T shaped bar on the ground is my best invention ever. The handlebars are way down inside at mid thigh height so it's near impossible to push the bike around. That T bar slips down into the triple tree tube making an extra set of easily removable handle bars at chest height. Plus I can attach straps to it without them touching the body.  Me likey!

https://www.dropbox.com/sc/xpr69f7lxt85a90/ZIhp0JPdUW



Let the discussion about the tail section begin! (I'll explain my theory later)

https://www.dropbox.com/sc/qd9c8zguv3iogft/jcTwQHN28f
« Last Edit: April 12, 2014, 02:44:02 AM by sofadriver »
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)

Offline sofadriver

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Re: my small displacement APS build
« Reply #14 on: April 12, 2014, 02:16:25 AM »
At present, we are working on the motor. Have I mentioned this is the 100cc class? Using a modified Kawasaki KX100 dirtbike motor. I had a 2stroke "guru" sit on my motor and blow smoke up my a** for 6 months and never even started on it! I've run out of bad words for this guy. Now I've found a reputable builder with an in-house dyno who's closer to me but we're getting a late start.
« Last Edit: April 12, 2014, 02:51:53 AM by sofadriver »
Mike in Tacoma

"aww, what the hell - let's just do it".............

Bike #833
100cc A/G, A/F and APS/G (in 2019)