80 MPH mobility scooter: Sold

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Re: 80 MPH mobility scooter: Exhaust, motor mounts

Postby the german » Tue Apr 29, 2014 1:55 pm

20VAvant wrote:
AngryTaco wrote:I seriously spent an hour on CL last night looking for a cheap scooter............

I'm thinking of using a 440cc snowmobile engine


We might as well stop being little girls and go ahead and pick up a 600cc motorcycle engine.



Unfortunately I investigated both options already- neither would fit under the motor cover and a 4 cylinder bike engine is about 2" wider than the frame. I even measured up the twin from my Ducati and it was way too big.
Last edited by the german on Wed Apr 30, 2014 5:55 pm, edited 1 time in total.
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
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Re: 80 MPH mobility scooter: Exhaust, motor mounts

Postby the german » Tue Apr 29, 2014 1:59 pm

AngryTaco wrote:and slap a k24 on there?



Hmmmm.....

Image
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
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Re: 80 MPH mobility scooter: Exhaust, motor mounts

Postby dana » Wed Apr 30, 2014 7:29 am

i think your choice of engine is excellent. It would be VERY hard to beat the lightweight, power output and compact drive line that a motocross engine affords you. A streetbike engine is too wide and heavy, snowmobile clutches take up tons of space (snowmobile engine is perfect for a golf cart).
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 10vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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Re: 80 MPH mobility scooter: Controls, body work

Postby the german » Wed May 07, 2014 12:10 am

Got a few more items in the mail this week: a $5 clutch cable, a $12 digital tachometer, and $14 worth of bicycle brake and shifter cable. For $12, I have to say I am pleasantly surprised by the tach. It actually logs hours, and has a service alarm you can set at whatever interval you want. Nifty. :thumbsup:

Here is the updated cost tracker:

Scooter..........................................$100
Engine, bike parts.............................$100
4 new front wheel bearing.......................$8
keyed, weldable drive hub......................$12
expansion pipe, muffler, spark plug..........$90
Cutting & sanding disks........................$20
carburetor........................................$74
new ignition coil.................................$11
12T sprocket.....................................$13
22T sprocket.....................................$15
520 chain.........................................$17
pod air filter.......................................$5
top-end gasket kit...............................$15
Pier 1 wall basket................................$10 (you will see why later...)
ATV throttle........................................$8
SOLD Electric motor and controller..........-$112
Bike cable.........................................$14
Clutch cable........................................$5
Digital tachometer...............................$12


Total.............................................$436

Here is the tach:

Image

And here is where it will be installed. Fits perfectly in the old battery meter window.

Image

Next up was controls and finishing up exhaust. Welded a bend on the pipe, and the slip joint on the muffler; still need to make a mount for the muffler. Also shortened up the kicker pedal I made before so it will fit under the body work, and got the clutch and throttle cables in and hooked up. Throttle works great, but the clutch does not. Bicycle brake cable and lever don't even begin to engage the clutch mechanism- waaaay too much stretch & deflection. Going to re-do with real motorcycle parts.

Image

Image

Finally, did some trimming and forming of the rear cover. The two "tumors" on top are for the spark plug and throttle cable.

Image

Exhaust ended up a bit low for the body work. I haven't yet decided if I'm okay with this or not.

Image

Image

All for now! :beer: :beer:
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
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Re: 80 MPH mobility scooter: controls, body work

Postby AngryTaco » Wed May 07, 2014 2:39 am

VIDEOS!!!!!
1986 4000cs Turbo Quattro
2001 Dodge Dakota R/T Standard Cab
1990 V8 quattro
1995 urS6

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http://www.hershperformance.com

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Re: 80 MPH mobility scooter: controls, body work

Postby the german » Wed May 07, 2014 8:38 am

AngryTaco wrote:VIDEOS!!!!!


patience grasshopper, patience. ;)
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
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Re: 80 MPH mobility scooter: controls, body work

Postby Midnight » Fri May 30, 2014 9:51 pm

What happened to this project, where are the videos?????
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Re: 80 MPH mobility scooter: controls, body work

Postby the german » Sat May 31, 2014 1:01 am

still going, it's just been so nice out here that I've been playing outside instead of working on it :hide:
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby the german » Sun Jun 01, 2014 11:28 pm

got some more parts in the mail last week, and did some work on it today.

To start off, I welded up a bolt-on frame for the seat post to mount to so that the motor is still removable. This worked out really nicely- it fits right between the cylinder head and the carburetor. :thumbsup:

Second, I fabricated mounts for the Banshee 350 radiator as well as some hard-lines to plumb it. Here is how she now sits with the radiator and seat frame:

Image

Image


Third, I installed a real clutch lever and cable, but the effort is still extremely high and the feel sucks. Also, the clutch is locked up from sitting for so long, so there I'm going to have to drive the thing around with no clutch at first until it unlocks it's self... that may be rather terrifying. More work to do on improving feel.

Finally, I filled the system with coolant and started her up to test for leaks and make sure there was flow to the radiator. The only fuel I had mixed was 5-year-old chainsaw gas, so it's REALLLLLY smokey. A video for your viewing and listening pleasure:



Here is the punch-list of remaining items to have it running and drive-able (in no particular order):
- Buy fuel tank, mount, plumb
- Return spring on brakes
- Fabricate quick-release mount for muffler
- O-ring for expansion pipe
- Wheelie bars
- Mounting provisions for rear body work
- Mount and wire tach
- Fabricate mount for ignition wiring, tie-up
- Wire kill switch
- Sort out a functional clutch control
- Battery powered headlight
- All the little things I'm inevitably forgetting right now... :roll:

Getting close!! :beer: :beer:
Last edited by the german on Tue Jun 03, 2014 5:30 pm, edited 1 time in total.
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
Posts: 622
Joined: Feb 15, 2014
Location: Bellevue, WA

Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby AngryTaco » Mon Jun 02, 2014 2:14 am

dude I'm going to take a trip over there just to see this thing
1986 4000cs Turbo Quattro
2001 Dodge Dakota R/T Standard Cab
1990 V8 quattro
1995 urS6

-Hersh Performance and Racing Products-
http://www.hershperformance.com

Powerflex Dealer

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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby the german » Mon Jun 02, 2014 11:17 pm

AngryTaco wrote:dude I'm going to take a trip over there just to see this thing


Bring the 4k
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby AngryTaco » Tue Jun 03, 2014 1:22 am

awww I was going to bring the dodge ;)
1986 4000cs Turbo Quattro
2001 Dodge Dakota R/T Standard Cab
1990 V8 quattro
1995 urS6

-Hersh Performance and Racing Products-
http://www.hershperformance.com

Powerflex Dealer

Mechanic by day, Machinist by night, Student by Sleep
#thuglife
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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby Hank » Tue Jun 03, 2014 8:08 am

Finally had the time to look over this project. Awesome! Can't wait for the final result.

A have been wanting to do a small engine project for a while. I'll probably do a turbo 4 stroke single cylinder 450 on VEMS or something similar. Great inspiration here for sure
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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby the german » Tue Jun 03, 2014 11:58 am

Hank wrote:Finally had the time to look over this project. Awesome! Can't wait for the final result.

A have been wanting to do a small engine project for a while. I'll probably do a turbo 4 stroke single cylinder 450 on VEMS or something similar. Great inspiration here for sure


Ha! that would be pretty awesome. Thanks Hank!
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
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Location: Bellevue, WA

Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby scubagli » Sun Jun 08, 2014 7:51 am

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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby Clem86 » Sun Jun 08, 2014 9:03 am

Hahaha awesome :lol:

You guys are nuts !
Audi 200 T44 3B 89" _ 90 B3 NG 88" _ 200 T44 1B 89" _ 90 B3 7A 90"
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Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby the german » Sun Jun 08, 2014 8:28 pm

thats awesome! watched more of their videos of it- here is one of it doing the 1/4 mile at a drag strip:



There is also a 'shakedown' video of it without that giant engine cover they made- it's a 600cc 4 cylinder sport bike motor, and a full kart rear axle and tires. Crazy bastards. Definitely the way to go for outright speed, but I want mine more "stealth" ;)
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
Posts: 622
Joined: Feb 15, 2014
Location: Bellevue, WA

Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby AngryTaco » Sun Jun 08, 2014 8:55 pm

If I wasnt constantly rebuilding a 10v, I'd have built one by now. Get more videos!
1986 4000cs Turbo Quattro
2001 Dodge Dakota R/T Standard Cab
1990 V8 quattro
1995 urS6

-Hersh Performance and Racing Products-
http://www.hershperformance.com

Powerflex Dealer

Mechanic by day, Machinist by night, Student by Sleep
#thuglife
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Re: 80 MPH mobility scooter: back to work

Postby the german » Fri Aug 01, 2014 9:31 am

It's been way too nice out lately, so I've been spending me free time playing outside rather than in the garage working on this thing. That said, I do have a short update.

Headlight:
The original was a 12v incandescent lamp powered off the scooter battery. This bike motor doesn't have a power leg coming from the CDI box, so I needed a way to power this. I decided to bust open two cheap-o Harbor Freight LED flashlights and use the light arrays from those as my new bulb element. I took the two battery packs and soldered them in parallel to give me a 6 AAA battery pack, which is mounted in the console behind the headlight. This is all wired to the original headlight switch, so everything works as it should (and it's a LOT brighter than the original lamp).

Image

Image

Tachometer/Hour Meter:

Mounting this where the battery gauge used to live on the handlebar console. Made some appropriately sized chunks of ABS by gluing some thinner pieces together (it's what I had laying around...) then trimmed it to fit, glued it in place, and drilled some mounting holes in it. I cut the window in the face of the console a bit larger so you can actually use the function buttons on the gauge too.

Image

Image

Image
Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
Posts: 622
Joined: Feb 15, 2014
Location: Bellevue, WA

Re: 80 MPH mobility scooter: Clutch, cooling, running video

Postby AngryTaco » Sat Aug 02, 2014 10:49 am

awesome!
1986 4000cs Turbo Quattro
2001 Dodge Dakota R/T Standard Cab
1990 V8 quattro
1995 urS6

-Hersh Performance and Racing Products-
http://www.hershperformance.com

Powerflex Dealer

Mechanic by day, Machinist by night, Student by Sleep
#thuglife
User avatar
AngryTaco
 
Posts: 2649
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Location: Hayden Lake, Idaho

Re: 80 MPH mobility scooter: First drive VIDEO

Postby the german » Sat Sep 06, 2014 10:56 pm

This has gone slower than originally planned, but hey- life happens. Took an awesome opportunity for a new job, and got back from three weeks of skiing and drinking wine in Chile and Argentina. So now, on to more progress: made the shift linkage, got it installed, ghetto-rigged the gas tank on, and finally took it out for a first drive! The clutch is still stuck engaged and there are no wheelie bars installed yet so taking it very easy.

Issues from first drive:
-steering is dodgy and definitely toed out. Needs an alignment.
-brake are not balanced, making steering even more dodgy at moderate speed
-SO. MUCH. F***ING POWER! wheelie bars are an absolute necessity. ~1/16 throttle induces a wheelie.

The Video:

Kirk

1990 ABZ CQ
1990 lifted CQ
2005 S4 6MT
2011 A4 2.0T Avant (ok, it's my wife's car but it's sexy and I love it)
the german
 
Posts: 622
Joined: Feb 15, 2014
Location: Bellevue, WA

Re: 80 MPH mobility scooter: First Drive - VIDEO!!

Postby scubagli » Sat Sep 06, 2014 11:50 pm

Looks sketchy, but fun once it's dialed in it should be a blast.
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Re: 80 MPH mobility scooter: First Drive - VIDEO!!

Postby Hank » Sun Sep 07, 2014 12:14 am

LOL win
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Re: 80 MPH mobility scooter: First Drive - VIDEO!!

Postby dana » Sun Sep 07, 2014 7:51 am

was that just 1st?

im scared for your life and jealous as well. Imaging getting into the powerband in 3rd? yipes
current:
-mk4 tdi wagon with some mods
-TDI b3 90q, holset turbo, be strong little connecting rods!
-the turbo tractor
past:
-11 second 90q junker
-20vt swapped 90q winter beater
-efi 10vt 4kq
-way too many other long gone urs's, 200's 4000's, b5's
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Re: 80 MPH mobility scooter: First Drive - VIDEO!!

Postby Justin517 » Sun Sep 07, 2014 10:56 am

lmao dude, yer dunna die.

Its going to be super fun dying though.
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