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Old 01-16-2012, 08:31 PM   #1
igormortis OP
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Operation: Battle Panda or: Getting the Airhead Ready for 2up Adventure

Iíve never named a vehicle before the R100GS. But it does seem to be a trend here and Penny, the lovely pillion, decided that it needed a name. She came home from roller derby training and told me about Battle Panda; a drill where you take hits repeatedly until you fall over. So what better than a name to describe the inevitable?

IMG_7418

Besides, it has a panda eye:

P1010854

Also, you could argue that itís fat, heavy, slow and ungainly. But Battle Panda with all its faults, will be taking Penny and I as far as it will let us. 2-up, loaded-up and pitted against any terrain we can put before it.

IMG_7417

Weíll see how we get on with that in due time. First I will do my best to prepare Battle Panda for the worst...
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Old 01-16-2012, 09:24 PM   #2
Night Falcon
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I think Battle Panda is quite an appropriate title for the o'll Bearmer
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Old 01-16-2012, 09:32 PM   #3
Box'a'bits
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So would saying 'About Time' be an appropriate greeting & beginning?
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Old 01-16-2012, 11:00 PM   #4
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Yeah, Iíll accept that. I think that was always the problem - whatís an appropriate beginning, if you havenít started from there?

So rather than try to catch up with what Iíve done so far, Iíll start with where Iím at now. After a 3500km round trip to the top of the country...

P1010410

P1010460

P1010463

P1010504

P1010638

Spot the imposter

P1010511

...some things need attention. Least of all the wash.
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Old 01-16-2012, 11:10 PM   #5
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IMG_0002

Do you think somethingís leaking? Noticed this about halfway through the trip. As a result carried gear oil with us and spent the rest of the journey mopping and topping up.

IMG_0006

Yep, I think thereís a leak.

IMG_0004

Current state of Battle Panda. Now to find out why...
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Old 01-16-2012, 11:55 PM   #6
Padmei
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Awesome igormortis.
Are you aware the initals are BP? Subliminal sponsorship perhaps.

I ummed & ahhed about taking off a gaiter today to check for any oil spillage before the Dusty Butt. I wasn't sure if I could handle the results I bit the bullet & pulled open the final drive one. There was a fingerpad worth at the bottom of one of the creases. I can live with that.

oops there I go talking about myself again...
Looking forward to more posts and...

GO THE ROLLER DERBY CHICKS!!!

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Old 01-17-2012, 12:39 AM   #7
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cool - another bike build thread
I don't know if your bike is a basic - but it looks like one (apart from the tank?) to my klr eye
basic's are the sexiest airheads


I hope your arent going to do a bush job like on those other airheads threads....
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Old 01-17-2012, 01:28 PM   #8
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Thanks Padmei. I am jealous of your pittance of a leak!

Mark - she's not strictly a Basic, more dolled up to look like one. Not much in it though, it's essentially the same bike.

The gearbox recently had some work done: Shorter 1st gear, longer 5th gear, machined output shaft for circlip and new bearings and seals. And it seems there may have been a problem with the output shaft seal...



Actually, what's immediately obvious is that the machined "v" in the casing has been left open - ala the monolever bikes. They use this to vent their oil filled swingarm. Our Paralever swingarm, on the other hand, shouldn't have oil in it.
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Old 01-17-2012, 04:07 PM   #9
Padmei
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As you prob know from being around is that not many mechs over here know about the different rear seals. I had 2 bmw specialists not know this. MD of course def knows his stuff!!
As I have had both gbox & final drive seals done 'recently' I am still surprised that there was oil there. I'm hoping it was just left over from the last gbox seal replacement. Either that or I think that we should have preshaped the seal as per snowbums meticulous preparation.
Either way the seal is pretty easy to do without taking the gearbox off.

Did you find any damage to your gearbox shaft or any seperation of the gears as per Antons thread with your circlip mod? this issue is very interesting as Rob Farmer on ukgsers hasn't come across many at all over there whereas of course the seppos worry about everything that could go wrong. Unfortunately I don't trust the mech that took my gearbox apart & I can't remember if he mentioned if mine had been done or not. I will undoubtedly get it checked out by someone in the future.

I hope you do a bush job on it so when I get to wellywood we can all be bushrangers
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Old 01-17-2012, 04:38 PM   #10
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Hadnít heard about pre-shaping the seal. But I trust MDís judgement.

Come to think of it now, he may have instructed me to seal up the notch before installing the Ďbox. I honestly canít remember, but I do remember him talking about it at some point.

We looked at the guts before the rebuild and machining. No damage to the shaft yet, but the bearing was showing heavy wear and M said it was good timing to have it done when I did.

Did you just silicone yours with the seal in place?

When are you coming to Welly? Maybe we can all get matching Ned Kelly helmets.
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Old 01-27-2012, 02:13 PM   #11
advNZer?
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i dont know why but that bike looks the shizzle!These final drive/gearbox discussions make me nervous!
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Old 01-31-2012, 05:55 PM   #12
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Confirmed some measurements today.

P1010903

I've deliberated long and hard about what wheels the Panda will ride on, and I’ve decided to stick with the BMW tubeless rims.

Originally I was going to use an HP2e front wheel, but the narrower fork leg spacing of the custom triples (R-dubb/HPMGuy) means it won’t work with the KTM forks that I’m going to adapt. So, let’s make the original GS wheel work...

P1010904

Yep, an airhead axle fits. The right axle clamp (left in this pic) is a perfect fit. The left is 1mm larger, so a 0.5mm thick sleeve is required.

P1010905

I’m using an axle from an ’85 Monolever bike. The diameters along the axle are the same but the spacing is slightly different to the GS. I’m also using the Monolever spacers. 11mm for this side.

P1010906

...and 24mm this side. The wheel is off center by about 5mm, so machining 2.5mm off this spacer should bring things into line.

P1010907

I won’t tell you what the sleeve is here, but I will assure you that I’ll get a proper one made up in time! An extra 2.5mm here will bring this end of the axle out nicely, and close to where it would be sitting in an airhead axle clamp.
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Old 01-31-2012, 06:04 PM   #13
Box'a'bits
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Good to see progress... Let me know if you neeed help, or want the name of that machinist now.

Steve
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Old 01-31-2012, 08:38 PM   #14
Padmei
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One of the issues I have with the GS wheels is that to get them looking good they have to be cleaned up specially and/or powder coated. (black rims are very sexy). If you use another type of wheel you will most prob get a shiny rim & hub to start with, & respoking them won't be an issue if they need doing vs the stock spoke pattern. Small issue really but one that I think about every time I look at my manky spokes.

Keep it going.
If I came across another project I would seriously look at raising the motor & raising the ride height of the bike (as well as stripping everything off it.
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Old 02-01-2012, 12:14 AM   #15
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cool ...what brakes will she have,or do i have to wait for the apprapriate instalment?
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