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Project Classic Motobricks / Re: Soggz 'Zummerzet' England 1986 K75C
« Last post by Soggz on Today at 04:20:03 AM »
Also carb cleaner is not recommended,  as it is rather aggressive.  But in my opinion we are obsessing about a thing,  that just needs to be checked for fine operation,  e.g. the door opening and closing freely.  If it does,  just spray the inside a bit and put it back together.  Having the bike operational again check for air leaks methodically,  measure the resistance of the water temp sensor at various temperatures,  and so on...
Yup, all done and back in, just before I did the compression test. I was working on the bike until around 8.30 last night.
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Project Classic Motobricks / Re: Soggz 'Zummerzet' England 1986 K75C
« Last post by szabgab on Today at 04:17:28 AM »
Thank you,yes,obviously don't want to get heavy handed with sensative components like these.

Also carb cleaner is not recommended,  as it is rather aggressive.  But in my opinion we are obsessing about a thing,  that just needs to be checked for fine operation,  e.g. the door opening and closing freely.  If it does,  just spray the inside a bit and put it back together.  Having the bike operational again check for air leaks methodically,  measure the resistance of the water temp sensor at various temperatures,  and so on...
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Look under the water oil /pump to see what the yellow wire connects to.

Under the t cover it's running parallel to a brown green wire.  That wire has a single connector, looking at the wiring diagram that's for the oil pressure light, so oil pressure gauge another possibility.
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Project Classic Motobricks / Re: Soggz 'Zummerzet' England 1986 K75C
« Last post by Soggz on Today at 03:12:30 AM »
Soggz,  as I recommended earlier,  go easy on that thing,  never ever touch it,  a fine spray of contact cleaner or MAF densor cleaner is all it takes.  If you touch it it is very fragile,  so if it breaks, you will need an another MAF sensor assembly. Since your bike is not running well,  you will not have a benchmark,  and you might never be able to realise,  the heating element is the culprit of a really badly working bike
Thank you,yes,obviously don't want to get heavy handed with sensative components like these.
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Project Classic Motobricks / Re: Soggz 'Zummerzet' England 1986 K75C
« Last post by Soggz on Today at 03:10:23 AM »
I relate to your idea of buying a spare to rip apart and put together again.

Three weeks ago I got another brick and promised myself not to spend any time fixing it.it was for spare parts only and to rip apart and reassemble.

Then on the way home I thought it would be a shame to wreck something that still goes, after all it used to be illegal to perform an autopsy on something that wasn't dead yet. I defibrillated it (tickled the computer) and now it ticks over again.

Now I havn't got the heart to tear it apart.
Yes,that's understandable. The two bikes I have now,I bought as non runners,so that I could rip them apart,and understand them,and get them going again. 1 done,1 to go! It's getting there. But I do like to think out of the box and ask questions which aren't normally asked...
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Project Classic Motobricks / Re: Soggz 'Zummerzet' England 1986 K75C
« Last post by Soggz on Today at 03:04:56 AM »
The doohickey(technical term) in the MAF throat is not there to tell if the engine is warmed up.  Rather, it measures AIR temperature very precisely so as to determine it's density/mass.  Air is much denser at colder temperatures than hotter temperatures.  It makes it possible to more accurately calculate the amount of fuel necessary to be injected.

Engine temperature is measured by the water temperature sensor in the cooling passage behind the radiator. 

It appears you need to go back and review the Jetronic Manual.
Thank you. I only wanted some sensible answers. It does seem an unusually complicated piece of equipment,and one that I am not famililiar with,but I like to get to know the bike and all its working parts.
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Project Classic Motobricks / Re: Soggz 'Zummerzet' England 1986 K75C
« Last post by szabgab on Today at 01:53:53 AM »
Soggz,  as I recommended earlier,  go easy on that thing,  never ever touch it,  a fine spray of contact cleaner or MAF densor cleaner is all it takes.  If you touch it it is very fragile,  so if it breaks, you will need an another MAF sensor assembly. Since your bike is not running well,  you will not have a benchmark,  and you might never be able to realise,  the heating element is the culprit of a really badly working bike
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Maybe a high altitude switch for the Jetronic unit? The wire routing wouldn't suggest that, but I thought I would...

Andy
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The Motobrick Workshop / Re: '93 K75 Instrument Cluster for an 85" K100
« Last post by Andy FitzGibbon on January 19, 2019, 09:28:02 PM »
The cluster connector is different between '85 and '93. The contact pins on the newer cluster are round instead of square. While the two styles of plug will physically fit together, they won't always make good contact.

You are correct on the fuel level sender differences... as I recall, '85 was the last year for the thermistor-type low fuel switch.

Andy
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I'm guessing a reputable company doing an enclosed shipment will cost you between $500 and $650.  With the cost of airfare to Flordia I would say a fly and ride will cost less than shipping, and be a hell of a lot more fun.  Three days/two nights if you're in a hurry.  It's an excellent opportunity to have a nice trip if you can take a week. 

If the bike starts and runs, it's almost a sure thing it'll get you home.
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