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Posted: Sat Jan 15, 2011 9:08 am
On my 1978 GW I have something going on with the fuelindicator. When I top up the fueltank the instrument showes full. When I start driving the instrument rather quick goes down to reserve. But When I top up the tank again I can only put about 2 gall/8-10 liter.
Does someone out there know about what to do or doe's someone have the ohms for the fuelsystem so I can simulate feks. empty - half full - full tank.
I have empty the tank via "main" supply and when I turned the handle to Reserve nothing happend. I can se there is still fuel in the tank. I would like to remove the fuel tap but is it posible without damage the gaskit and do I have to be carefull in a special way.
I can tell that fuel does NOT taste well.
Posted: Sat Jan 15, 2011 10:51 pm
A quick question - is your temperature gauge also misbehaving?
Posted: Sun Jan 16, 2011 4:12 am
I know what you are thinking about. The 7 volt regulator.
The temp indicator is under normal operation in the lover end of the scal but if I park the bike and let the engine on, the temp indication will rise to about 3/4 and then fall a little back again which I think is normal when the fan turns on.
But I will of course check the 7 volt regulator.
And in the manual I have the ohms figure for the tempindicator so I will check that out as well.
Any ideas why I cant get the reservefuel out of the tap.
Have a nice weekend, and happy birthday, just a little late.
Posted: Sun Jan 16, 2011 8:14 am
I found the 7 volt regulator. It was placed and screwed to the botton of the temp and fuel indicator. I checked it and the result was 7.10 volt which should be okay.
But at the same time I checked the 12 volt supply and that was only 10,8 volt and checkin the battery I had 12,4 volt.
This tells me that the regulator is OK but there is heavy resistens( lose connection, bad connection etc.) which can create a voltages drop of almost 2 volt with that little drawn power. But that is an other challenged. Maybe also why I got the bike cheap. But I new there was some electrical problems when I bought it.
Posted: Mon Jan 17, 2011 9:20 am
One of the biggest problems and the most over looked problem with the old Wings is loose and corroded electrical connectors. Might as well get started cleaning and tightening.
Posted: Mon Jan 17, 2011 10:14 am
Your temperature gauge sounds like it is operating normally. I'd have a look at the fuel sender.
For the 1978 GL1000, the sensor should read 70-90 ohms when the tank is empty, and 3-10 ohms when the tank is full.
Posted: Tue Jan 18, 2011 7:44 am
I just checked the fuelsender. Full 7 ohm and empty 83 ohm. Sounds ok. I also checked if there is some break in between but no failure. I connectet the sender to the system and checked the indicator. It seem to work ok. But at the same time I have found very poor connection. So now I puy all together an see what happend.
Dingdong, you are shure right. I have found a lot of not only poor but very poor connection. Mostly spade connection.
During this operation I also foundout that voltageregulator is removed. The connectors where wrapped in tape, so now I have to figure out how the voltage is regulatede. And there is instaled a rectifiren which is not original.
It is an E20263 SCHNABEL, 12V 3phase, Regulator/Rectifire. There are 3 yellow to the stator and Black(ground) Red( Plus)
I can't find anything on the net about it so anny information will be helpfull.