New to K100, with project

[Mwilson904]

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. 

[Mwilson904]

Here's another picture

[jakgieger]

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

[mw074]

The bike is a 1986. Nice pick-up.

[Mwilson904]

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.

[The Mighty Gryphon]

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.

[Mwilson904]

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!!!

[Brad-Man]

Congrats and welcome!

You're gonna love it.

[Martin]

 :2thumbup: Welcome looks like you got a great deal.
Regards Martin.

[TrueAce]

You did well, good trade. All the things you need to do are covered in the Liebrary. Enjoy!

[jakgieger]

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 !  Good luck

[Laitch]

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 !

+1

[Mwilson904]

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

[Mwilson904]

Years of gas will make things interesting  :yow

[jakgieger]

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 .  This is NOT a crisis, just a little tlc, and she will purr :hehehe

[Martin]

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.

[Laitch]

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.

[Martin]

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.
Regards a slightly frustrated Martin.

[Mwilson904]

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:

[dyoungen]

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.

[TrueAce]

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:

[Martin]

I'll give it a go if I can find a snorkel long enough. :hehehe
Regards Martin.

[Mwilson904]

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

[Laitch]

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?
 

[Mwilson904]

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