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Author Topic: New K75S owner, Portland Or.  (Read 17575 times)

Offline gpcrane

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New K75S owner, Portland Or.
« on: March 05, 2012, 05:39:32 PM »
Hi, I'm Greg.
I just bought a 1987 K75S with 32K miles.  Before that I had a Ural hack and before that I had a 57 Vespa 150.  So this time around I wanted something with power, reliability and touring ability.  The bike has a few mods in the form of added lights, a deer whistle, and a "cold air intake".  So far I have a few hundred miles on it and have been very impressed with the ease of riding it.  I can't wait to take it out for a first weekend trip.
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Offline DRxBMW

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Re: New K75S owner, Portland Or.
« Reply #1 on: March 05, 2012, 05:45:01 PM »
Quote from: gpcrane on March 05, 2012, 05:39:32 PM
Hi, I'm Greg.
 The bike has a few mods in the form of added lights, a deer whistle, and a "cold air intake".  So far I have a few hundred miles on it and have been very impressed with the ease of riding it.  I can't wait to take it out for a first weekend trip.

WTF is a cold air intake ?

New one to me duck ?
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Gary
Williamsport,Pa

1994 K 75 ABS "custom"
2005 F 650 GS

Offline johnny

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Re: New K75S owner, Portland Or.
« Reply #2 on: March 05, 2012, 05:50:43 PM »
greetings gpcrane...

welcome to motobrick.com...

j o

sent from johnnys droid using tapatalk v3beta

 
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Offline frankenduck

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Re: New K75S owner, Portland Or.
« Reply #3 on: March 05, 2012, 05:54:40 PM »
Quote from: DRxBMW on March 05, 2012, 05:45:01 PM
Quote from: gpcrane on March 05, 2012, 05:39:32 PM
Hi, I'm Greg.
 The bike has a few mods in the form of added lights, a deer whistle, and a "cold air intake".  So far I have a few hundred miles on it and have been very impressed with the ease of riding it.  I can't wait to take it out for a first weekend trip.

WTF is a cold air intake ?

New one to me duck ?

Probably the deal where people ditch the airbox and hook up a K&N style cone air filter to the MAF.  Seen that a few times.

Welcome, gpcrane. :2thumbup:
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Offline gpcrane

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Re: New K75S owner, Portland Or.
« Reply #4 on: March 05, 2012, 06:33:45 PM »
Here is the cheesy cold air intake.  Not sure what to make of it myself.  For now it will stay.  The guy who owned it before me said it was set up for high alt. since it was living in Sparks Nv (alt. 4400 ft).  I found the high alt. plug and it does not have the jumper, is there another way to set up the injectors for high alt?

Thx, Greg
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Offline frankenduck

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Re: New K75S owner, Portland Or.
« Reply #5 on: March 05, 2012, 06:48:19 PM »
All that does is short two wires.  Many people just wire it up to a dash switch.  It comes in quite handy to have a switch when going up and down through 4000' in The Cascades - like in Oregon for example.

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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
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Offline gpcrane

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Re: New K75S owner, Portland Or.
« Reply #6 on: March 05, 2012, 07:04:22 PM »
I think I know that bridge, Cottage Grove, right?
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Offline frankenduck

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Re: New K75S owner, Portland Or.
« Reply #7 on: March 05, 2012, 07:14:12 PM »
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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
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Offline DRxBMW

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Re: New K75S owner, Portland Or.
« Reply #8 on: March 05, 2012, 08:11:34 PM »
Quote from: gpcrane on March 05, 2012, 06:33:45 PM
Here is the cheesy cold air intake.  Not sure what to make of it myself.  For now it will stay.  The guy who owned it before me said it was set up for high alt. since it was living in Sparks Nv (alt. 4400 ft).  I found the high alt. plug and it does not have the jumper, is there another way to set up the injectors for high alt?

Thx, Greg
be me, I would convert back to the OEM intake. Hard to believe that Mickey Mouse re-engineering would even work better in the cold.

Most of us bricKheads have the altitude plug wired to a switch. NOT sure if frankenduck has a write up on the procedure, EASY mod.

NICE looking RS, the white color really sets it off.

Curiosity ?  do you like the low bars ?   I owned a 1990 K100 RS for three years. Vast improvement swapping the stock RS bars for the C model ones. The top heavy feeling literally vanished.

Welcome, hang around here and you'll soon be an expert on the inner workings of a K bikes and donKey anatomy. LOL 

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Gary
Williamsport,Pa

1994 K 75 ABS "custom"
2005 F 650 GS

Offline orforester

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Re: New K75S owner, Portland Or.
« Reply #9 on: March 05, 2012, 10:36:19 PM »
Welcome GP. You will find alot of great info on this site, dispite the Donkey pics from Johnny!  Ha Ha.  Great riding around Portland, try 213 from Oregon City to Silverton and back via Wheatland ferry, or the loop to Turner (south of Silverton) and over the Buena Vista Ferry, if the ferry is not running try riverside Drive to Independance, then back 99W to Portland, or 219 out of Newburg to Hillsboro.  Lots of get rides around Willamette Valley. But keep it quiet, so no one knows!
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Bob
1989 K 100 RS se (SOLD)
1985 K 100 RS, now RT
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Offline frankenduck

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Re: New K75S owner, Portland Or.
« Reply #10 on: March 05, 2012, 10:38:22 PM »
Head to Carson, Wa and take Windy River Road up to Windy Ridge near Mt. St. Helens.
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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
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Offline gpcrane

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Re: New K75S owner, Portland Or.
« Reply #11 on: March 05, 2012, 10:46:58 PM »
Hey Gary,

Mickey Mouse is right, the cold air intake consists of a hole cut in the box with a 90 deg bend radiator hose stuck in the hole.  I guess the air is still being filtered, I have not inspected the filter yet so I don't know how much crap is going through the hose.

As far the the lower bars go I like them.  I use to do bicycle road racing so I am very used to having a seat that is higher than the bars.  This is a very up right position for me, very comfortable, and control is no problem.  The second I first sat on the bike a great big smile went across my face.  I'm 5'8" and the bike fit as well as I could hope.  I am just a little shy of being able to flat foot the bike with both feet at the same time.  I have been trying out the bike while getting as low as I can on the tank in order to get out of the wind at high speeds, so I do like the lower bars for that reason.  I can rest my chest of the tank and still feel like I have good control and good comfort.  The day may come when I will want even lower bars, who knows.  I just have to get used to a much heavier lid now.
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Offline Chaos

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Re: New K75S owner, Portland Or.
« Reply #12 on: March 06, 2012, 08:34:50 PM »
That "cold air intake" shouldn't hurt anything, other than looking rather dorky.  My bike has had a K&N conical filter on it of the last 20+ years and does fine.
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline frankenduck

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Re: New K75S owner, Portland Or.
« Reply #13 on: March 06, 2012, 09:22:19 PM »
IMO there's really no need to mess with the air intake on K bikes.

To start with, the air filter is HUGE for a 750 to 1100cc engine.  Don Eilenberger ran dynos with a) an OEM air filter, b) a K&N air filter, c) no air filter and d) an oem air filter half covered with Saran wrap.  The dyno showed NO difference between any of those.  The one thing he did find is that the K&N filter let through more microcrud than an OEM filter.

Next, the air intake comes in through the snorkel which is at ambient temperature.

Before I stumbled across Don's web page on the topic, I ran a K&N on my K75.  Due to the heat that builds up in there when stopped or going slowly, the oil in the K&N filter dries out more quickly than on most engines so it needs to be cleaned/re-oiled more often than a K&N on a "normal" engine.
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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
New to K bikes? Click here.
K Bike Maintenance & Mods: Click here.
Buy parts here.

Offline Chaos

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Re: New K75S owner, Portland Or.
« Reply #14 on: March 06, 2012, 10:56:25 PM »
I agree.  there is no performance to be gained by messing with the intake system, but the K&N I got LOOKS cool and that trumps function!   :neener:
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  • sw ohio
1987 K75S    VIN 0231
Original owner, Original litter
200,000 miles (plus or minus) and 5 paint jobs
sold 6/23
2023 Ural 2WD sidecar (BMW's bastard step child)

Offline frankenduck

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Re: New K75S owner, Portland Or.
« Reply #15 on: March 06, 2012, 10:59:11 PM »
Quote from: Chaos on March 06, 2012, 10:56:25 PM
I agree.  there is no performance to be gained by messing with the intake system, but the K&N I got LOOKS cool and that trumps function!   :neener:

It's probably letting more dirt in your engine though.  Will probably limit engine life to 300k. :giggles
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Once I had a Collie pup. Dug a hole and covered him up. Now I sit there by the hour. Waiting for a Collie-flower.
New to K bikes? Click here.
K Bike Maintenance & Mods: Click here.
Buy parts here.
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