Overgrown Offroad Zombie

larryboy · 09-18-2011, 11:56 AM

If BMW destruction bothers you, stick to the hover and resist the click.

I picked up this 2001 1150GS in a trade and realized that needed upkeep was more than I could afford...conversion to something better was my only choice or so the voices told me.

Start with this:

Watch the flea market and find an XRR front end:

Remove 149 pounds of crap to get to this:

Find a CR500 frame on the 'list for $65, it's steel and uses the same head bearings and races as an XR650R:

Cut a little bit at a time for mockup:

Tell silly Lily to stop bothering me:

Start making parts:

Enjoy the look on my Father-n-laws face when he sees what I've done to this fine BMW:

Start adding tube:

Realized I put the fuel tank mounts in the wrong spot, back bone hits the tank...hmm, I better put it on it's feet before I get too crazy with the welder.

That last picture was nine days into the build. I spent some time measuring and ordering parts between selling the 1150GS parts I don't need anymore. Figured out the tank mounting and some other stuff. Then I got the flu and lost 10 pounds, in recovery mode now...maybe some bike progress today.

Stay tuned...a buddy is helping me figure out how to run a stand alone electronic ignition without the Motronic and I'm putting carburators on it too.

I have to start test riding this thing by the end of October as my wife and I are riding it two-up in November all over Death Zombie Valley.

andyhol · 09-18-2011, 12:04 PM

weight as it stands? very very cool imho

larryboy · 09-18-2011, 12:09 PM

I was at 430 before I started putting parts back on. I'll have to do a final teardown for paint and will weigh stuff as it goes back on.

Edit: I'm hoping for 480 pounds ready to ride, with hard bags and mounts I'll probably end up at 500 pounds. 81 pounds lighter than stock.

roadrage · 09-18-2011, 12:45 PM

Put the Harley wheels on it!!! :-)

Cool hackage!

sailah · 09-18-2011, 01:49 PM

Sweet, I like your style

fatpony · 09-18-2011, 02:19 PM

YOU are my hero and an inspiration! Please continue. Thanks, Mike

bk brkr baker · 09-18-2011, 12:05 PM

Watch out !
Them propeller fellers are massing for an attack!

CamoGreg · 09-18-2011, 02:48 PM

Quote:

He wasn't right...in the head.

rallyman1978 · 09-18-2011, 03:04 PM

Wolfgang55 · 09-18-2011, 03:46 PM

So the BMW 1150 was to costly to keep up on the maintenance.

You keep the motor & put carbs on board.

You do have a vision & I too want to see it run & stop.

Good luck.

SFKLR · 09-18-2011, 04:02 PM

Register it as a plated XR. Insure it as a cr500. Tell others it's a BMW. Ride it like you stole it.

larryboy · 09-18-2011, 04:47 PM

Oh yeah, I traded the gauges for a rear GSA model rear wheel with a new TKC on it. Gonna have to pick up a fresh rear rotor as I let the rotor go with the wheel set I sold.

Poolside · 09-18-2011, 06:35 PM

Quote:

Originally Posted by larryboy

I'm actually trying a small Magura clutch master to save weight, we'll see if it can move enough fluid.

The OE master bore diameter is 16mm and the slave is 24mm. Based on the 'engagement range' of the OE clutch I'd guess that a 10% smaller master bore diameter still might work. Say 14.5mm as a minimum diameter.

But since Magura makes the OE BMW master, you might find a 16mm Magura part. If so, on the old and new clutch levers check the centerline distance between the clutch lever pin and the piston pin. For the same bore diameter, that dimension determines lever throw.

larryboy · 09-18-2011, 06:46 PM

Quote:

Originally Posted by Poolside

The OE master bore diameter is 16mm and the slave is 24mm. Based on the 'engagement range' of the OE clutch I'd guess that a 10% smaller master bore diameter still might work. Say 14.5mm as a minimum diameter.

But since Magura makes the OE BMW master, you might find a 16mm Magura part. If so, on the old and new clutch levers check the centerline distance between the clutch lever pin and the piston pin. For the same bore diameter, that dimension determines lever throw.

I'm more of a bolt it on, bleed it and see if it works kind of guy.

Clutch master is in stock, I have a couple of different ones I can try. Probably get to it after the new springs go in the forks and front end is complete.

Poolside · 09-18-2011, 06:58 PM

Quote:

Originally Posted by larryboy

I'm more of a bolt it on, bleed it and see if it works kind of guy.

Yea, I am getting that feeling about you

09-18-2011, 11:56 AM	#1
larryboy ^OP Paint it black. Joined: Jan 2005 Location: Über Alles,Ca Oddometer: 12,868	Overgrown Offroad Zombie If BMW destruction bothers you, stick to the hover and resist the click. I picked up this 2001 1150GS in a trade and realized that needed upkeep was more than I could afford...conversion to something better was my only choice or so the voices told me. Start with this: Watch the flea market and find an XRR front end: Remove 149 pounds of crap to get to this: Find a CR500 frame on the 'list for $65, it's steel and uses the same head bearings and races as an XR650R: Cut a little bit at a time for mockup: Tell silly Lily to stop bothering me: Start making parts: Enjoy the look on my Father-n-laws face when he sees what I've done to this fine BMW: Start adding tube: Realized I put the fuel tank mounts in the wrong spot, back bone hits the tank...hmm, I better put it on it's feet before I get too crazy with the welder. That last picture was nine days into the build. I spent some time measuring and ordering parts between selling the 1150GS parts I don't need anymore. Figured out the tank mounting and some other stuff. Then I got the flu and lost 10 pounds, in recovery mode now...maybe some bike progress today. Stay tuned...a buddy is helping me figure out how to run a stand alone electronic ignition without the Motronic and I'm putting carburators on it too. I have to start test riding this thing by the end of October as my wife and I are riding it two-up in November all over Death Zombie Valley.

09-18-2011, 12:04 PM	#2
andyhol volcano rider Joined: Dec 2008 Location: the Seven Seas Oddometer: 146	weight as it stands? very very cool imho __________________ current rides: tiger 200 and cb200 scrambler in indo 90 yamaha xtz750 super tenere, 98 honda vtr 1000 firestorm in the uk

09-18-2011, 12:45 PM	#4
roadrage Studly Adventurer Joined: Feb 2004 Location: San Joe's A, Ca Oddometer: 895	Put the Harley wheels on it!!! :-) Cool hackage! __________________ Don't believe everything you think.

09-18-2011, 01:49 PM	#5
sailah Lampin' it Joined: Aug 2005 Location: Turning expensive metal into scrap Oddometer: 4,150	Sweet, I like your style __________________ We're not out here to rough it. We're here to smooth it . Things are rough enough in town. Nessmuk

09-18-2011, 02:19 PM	#6
fatpony Dixiecrat Joined: Jan 2005 Location: Flatistan NW aka Fl Panhandle Oddometer: 217	YOU are my hero and an inspiration! Please continue. Thanks, Mike __________________ "Good enough is seldom either, but it'll do"

09-18-2011, 12:09 PM	#3
larryboy ^OP Paint it black. Joined: Jan 2005 Location: Über Alles,Ca Oddometer: 12,868	I was at 430 before I started putting parts back on. I'll have to do a final teardown for paint and will weigh stuff as it goes back on. Edit: I'm hoping for 480 pounds ready to ride, with hard bags and mounts I'll probably end up at 500 pounds. 81 pounds lighter than stock.

09-18-2011, 12:05 PM	#7
bk brkr baker Beastly Adventurer Joined: Jul 2006 Location: The Bluegrass Oddometer: 4,147	Watch out ! Them propeller fellers are massing for an attack! __________________ RR's Catnip Hill to Peoria ___Loopin' Seattle to WestFest It started with some beers __1500 miles to the Dentist Skeedaddle to Seattle______ A 30 year old on a Three Flags Run

09-18-2011, 03:04 PM	#9
rallyman1978 Gnarly Adventurer Joined: Sep 2008 Location: Worcester, UK Oddometer: 199	__________________

09-18-2011, 03:46 PM	#10
Wolfgang55 Beastly Adventurer Joined: Dec 2006 Location: Next to Rio Bravo Oddometer: 2,958	So the BMW 1150 was to costly to keep up on the maintenance. You keep the motor & put carbs on board. You do have a vision & I too want to see it run & stop. Good luck.

09-18-2011, 04:02 PM	#11
SFKLR BeniciaKTM? Joined: Jun 2006 Location: Benicia, CA Oddometer: 1,000	Register it as a plated XR. Insure it as a cr500. Tell others it's a BMW. Ride it like you stole it.

09-18-2011, 04:47 PM	#12
larryboy ^OP Paint it black. Joined: Jan 2005 Location: Über Alles,Ca Oddometer: 12,868	Oh yeah, I traded the gauges for a rear GSA model rear wheel with a new TKC on it. Gonna have to pick up a fresh rear rotor as I let the rotor go with the wheel set I sold.

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