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MOTOBRICK.COM => Welcome To Motobrick.Com => Topic started by: Mwilson904 on September 04, 2016, 10:50:44 AM
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Hello,
I picked up a K100 (think 1986 as build date is 9/85). It's been sitting in the neighbors garage collecting dust since 2000-2003. It has 22,000 miles on it, was wasn't sure if he parked it due to a fuel pump, or water pump.
I traded it for a 71 ppk/s .32 that I bought at a show for $500.00 a few months ago, but is worth maybe a couple hundred more (German for German trade) He was with me when I bought it and had been eyeing it since, I've been eyeing the K100 for the last 10 years.
We both think we got the best of the deal, time will tell.
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Here's another picture
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You got the better deal!! Welcome to the asylum. The bike will grow on you and hopefully will allow you to enjoy freedom in a whole new way. The mechanics are relatively simple/direct and nearly any question under the sun has been asked and answered here...now, if you can just find it :bmwsmile
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The bike is a 1986. Nice pick-up.
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Thanks Jack!
While thinking about possibly doing the trade, last night I looked over the forum, signed up, and found tons of info. The minute he opened his garage door this morning, it was a done deal.
The forum is great! Convinced me to take the plunge, so he happily rinsed it off and rolled it over.
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What does the inside of the tank look like? Was it stored with fuel in it?. I would expect that you are going to have to clean the crystallized fuel out of the injectors before it will run properly.
Do the brake master cylinders leak, especially the rear? Change the brake fluid ASAP and do a good bleed.
Do a good flush on the cooling system and change all the fluids and she should be good to go for another 30 years and 200,000 miles.
You'll need new tires as well. 10 year old tires are an accident waiting to happen. Beyond that, depending on ozone and UV exposure there may be other rubber bits that need replacement. Judging from the photos, I would think they are still in pretty good shape.
Figuring a $600 maintenance/refurb budget on a bike you traded an $800 pistol for, I would say you got a pretty good deal on an almost new brick.
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Yes it has 15 yr old fuel in it, inside the tank looks good hopefully a good rinsing will clean it out.
The brakes aren't currently leaking and appear fine, but of course seals haven't been under any pressure since its been sitting. Surprisingly all of the rubber seems to be in good shape, if I were 30 years younger I would ride on the tires as they "look good" but I'm not as bold as I used be so they will be changed.
I'll pull the injectors and have them flushed, along with flushing and changing all fluids, $600 sounds like a good budget, along with a lot of tinkering.
I'm 6'5ish, and like the ride height! (well for now the sitting height)
Thanks for everyone's input, suggestions and help!!!
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Congrats and welcome!
You're gonna love it.
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:2thumbup: Welcome looks like you got a great deal.
Regards Martin.
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You did well, good trade. All the things you need to do are covered in the Liebrary. Enjoy!
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RESIST THE TEMPTATION TO "FIRE IT UP"!!!! Start slow...remove and clean the fuel tank (acetone/water); renew fuel hoses, brake fluid, antifreeze, z-hose (crankcase breather); change all oils (including fork oil). The fuel/brake/coolant system (make sure the fan is free) can be a huge PIA and a source of nagging problems if you do not do maintenance NOW :bmwsmile! Good luck
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RESIST THE TEMPTATION TO "FIRE IT UP"!!!! The fuel/brake/coolant system (make sure the fan is free) can be a huge PIA and a source of nagging problems if you do not do maintenance NOW :bmwsmile!
+1
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RESISTING the temptation is Great advice! It'll be tough, and I really needed to hear that!!
I should print that and put it on my garage wall :nono
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Years of gas will make things interesting :yow
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Found the same in my tank :dunno (14 yrs. idle)...the liquefied rubber would mess things up if you tried to push it through the injectors. The other fluids on the bike will be just as nasty, including the fork oil :bmwsmile. This is NOT a crisis, :bmwsmile just a little tlc, and she will purr :hehehe
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Gas is fine it's the alcohol that causes the problem. I still have my original damper from 1992 never ran on alcohol laced fuel. The pictures are of what remains of a mates damper which has been run on 10% alcohol fuel.
Regards Martin.
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Gas is fine it's the alcohol that causes the problem.
That looks like the innards from one of your friend's derelict K-bikes, Martin. :hehehe Confess! It's the languishing in the outback sun for years at a time that does that, too.
The only reason I drive to hell-and-gone is for fun, not for a fill-up of ethanol-free fuel. I use my bike daily for six months a year, feed it 89 octane (AKI) gasohol. The tank is clean and the bike runs good enough to get 50mpg in mixed hill and flatland driving. I couldn't abide living with a princess that required a regular outing for champagne or she'd throw a tantrum, even if she was a great ride.
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I've sort of given up on his bikes, his back is now OK and he reckons he will have the blue K100 back on the road in a week. :dunno I have decided to reluctantly keep my nose out of it, unless he asks for help. :popcorm
Regards a slightly frustrated Martin.
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Martin, maybe you should stop by Florida and get my blue k100 up and running smoothly, then send him video's of it to inspire him, all road and drinks are on me! :2thumbup:
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I agree with the fuel tank needing to be gone thru. My K75 sat for a few years and when i did work on it the fuel lines had completely turned to mush. and the rubber dampener around the fuel pump did the same.
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Hey, Mwilson904, food AND DRINKS? What's wrong with your Blue K........I can get there right away! 850 to 904 ain't that far. :clap:
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I'll give it a go if I can find a snorkel long enough. :hehehe
Regards Martin.
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Yep, Food, drinks, and a bunch of parts I bought from beemerboneyard that put me over budget :musicboohoo:
Bought everything new for inside the tank, fuel pump, damper, etc, new outside fuel line, refurbished injectors, pulled the water pump apart etc.
After reading about the water pump adventures on here I better get some beer and gain some patience to get the seals in there in one piece :hehehe
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After reading about the water pump adventures on here I better get some beer and gain some patience to get the seals in there in one piece.
What's your strategy for removing the scale and precipitates clogging the engine coolant passages?
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Hi Laitch, while it looks completely hard and crystalized for the most part it is a soft goo. My plan was to scrap out what I can see, vacuum and rinse the rest, then flush out the system best as possible when I get the pump back on.
Hopefully everything will flush out in time.
Any better ideas?
Thanks
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. . . while it looks completely hard and crystalized for the most part it is a soft goo. My plan was to scrap out what I can see, vacuum and rinse the rest, then flush out the system best as possible when I get the pump back on.
It looks like oatmeal to me but there's stuff that is unseen too.
I'd want to get as much of that stuff out of the engine as possible and not run it through a rebuilt or new pump assembly. If by rinse you mean using water-pressure from a hose inserted into one of the passages to blow the debris out of there, that seems like a good plan. I'd want more pressure than the average urban water system supplies but you've got to work with what you've got. I'd alternate directions of the flow until satisfied that I'd done the best I could.
A coolant system flushing compound should be used a couple of times when the engine is ready to run. Follow these instructions (http://bmwmotorcycletech.info/k-coolant.htm).
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The similarity with my bike/situation are uncanny. After you clean as much as possible from the cooling system, then run it and use a flush product. 200 degree water and flushing agents will do wonders. My bike runs "cool" now. Don't worry about the budget...I am in the same boat :dunno. My 20,000mi, always stored inside $2500 cherry turned into an extended European vacation. BUT, at the end I have a beautiful motorcycle, and can continue to make memories. It is a hobby after all :bmwsmile. I found these people (with this site), after I had underwritten the local BMW dealer :hehehe, http://www.euromotoelectrics.com/category-s/753.htm (http://www.euromotoelectrics.com/category-s/753.htm).
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I lost sleep know that the goo may turn hard since I opened it up, so I got up and flushed it out a bit.
Then when I got home from work I thoroughly flushed it, all directions, push with water, suck with shop vac, push with blower etc. Its as clean as a whistle, thanks for the flush/coolant link, very helpful, once I run it I will also follow that procedure and flush with a cleaner while hot, great article!
My list of "must do's" continues to grow as I look on the forum, but like Jackgeiger I'm looking at it as a hobby rather than a roi. I ordered some parts yesterday from my local bmw dealer, Ouch! (Thinking I'd have them the next day). But their a week out so that help pace me and address items that I may have otherwise overlooked.
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It's Aaaaalive!
I'm about $800.00 in parts into it at this point.
Fuel pump, lines, injectors etc $450.00
Odessy Battery $100
Water pump parts +misc gaskets and lines $180.00
Gear, trans, oil, brake fluids $60.00
Took it for a short ride (not licensed) runs great, shifts perfect.
Purrs like a kitten.
Thanks for everyone's help, I really couldn't have done it without this forum and everybody's help!
Mike
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:riding:
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Enjoy it ride it love it. :2thumbup:
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:clap:
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Zoom zoom
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Now for the fun stuff!!!! Fan over-ride switch , led lights, moly in tranny and final drive, auxiliary/driving lights, elevation switch, etc. (so you can take those blank switches out of your dash :bmwsmile).
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Beautiful bike.......is that original miles? You have done well, ride & enjoy, you can get those maintenance items done in the winter. :2thumbup:
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Man, she looks damn near brand new! Sweet ride. Two other things I might throw in....check your steering head bearings for any notchiness or roughness. That grease could be long since dried out. Grease your kick stand and center stand....zerks instead of the usual grease gun ends. And if you have any electrical connectors apart don't be afraid to use DeOxit spray on those. They are likely corrosion free but you won't know until you pull them apart. Good preventive maintenance. Gryphon is dead-on, though. Follow his instructions, and those of others here, and you will have a lot of riding out of that bike.
As for tires....don't even think about running those ones. For what you guys can buy rubber for in the States!! Get new stuff asap and be safe!
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Thanks! Yes it has just under 22,000 miles on the clock, my neighbor bought it in 1995 with a little over 20k miles, the water pump went out in 2001 and he never put it on the road again.
The steering bearings did settle into the races and should be changed for smoother steering, I cleaned some of the electrical but it appears to need a new flasher, everything lights just doesn't flash, and it could use paint as the fairing parts were moved around in boxes for years and got scratched up.
Other than that it's pretty clean, and runs great! :bmwsmile
Went to the BMW motorcycle dealer bbq today, very tempted to ride it up there but as you mentioned the tires make me a little nervous so they will be replaced before it hits the open road.
Thanks, Mike