This Is The EPIC Soggs 92K75 MAGA Thread

[Soggz]

Now that I've looked at the wiring diagram I think the problem is with your fan,  I think you worked on that. All those other things I said we're wild stabs in the dark,  it's about time I started to resist that urge and look logically.

yes, I put a new fan on. But I only plugged it back into the original 2 wires, as logically, that’s the only ones to plug them into.

[Soggz]

greetings...

at this point he needs to make a single poast of a list of everything he has done to this point in a forrmat that makes sense at a glance and a photo expose so we are all reading and seeing the same thing...

i guarantee you that if i had the details and big picture at the same time i would have it running if runnable...

j o

Good Idea,here goes.
Ok.
Got this bike
Put in new tank pump and filter mesh and filter
Started the bike
Bike ran like sh&t
Fan never worked
Put on a new fan
Checked engine thermostat sensor
Bike ran like sh£t but fan came on when it got hot
Checked for air leaks
Air leaks
Fixed crankcase pipe
Better...
Bought new crankcase pipe and vacuum caps
Cleaned throttle body’s
Checked compression, all up in the 140’s
Took care of leaks
Now bike won’t fire

[Soggz]

greetings...

is this moto in newtral on the centered stand... if you woulda posted photo expose i would notta had to axe...

j o

hi,yes,all work is done on the centre stand. Can't do anything to it till Tuesday now, as busy sorting out the kids school stuff.
I will return back into the garage and take some more pics of what I have done so far.

[Soggz]

Just out of interest...
When I had the air pod off of the top of the throttle bodies,I twist the throttle and the flaps in the bodies open nicely together, but when I flick the 'choke' lever on,none of them move. Should they at least open a bit? Or is my mind still in the world of carburettors..?
When I pull the choke lever on and off,the lever far right of the bodies move,but I don't see it move anything,and yes,the cable is connected. Is it all electronic? When I had them off,I watched the cable lever move up against a little device held in by a 10mm nut on the end at the back. A small 'plunger' device. This was operating with the lever going on and off. Is that the 'choke sensor',controlling the fuel?

[Laitch]

When I pull the choke lever on and off,the lever far right of the bodies move,but I don't see it move anything,and yes,the cable is connected. Is it all electronic?

No. The increased starting speed function is mechanical. There are gap settings involved. See illustrations and text in Chapter 32-14 of the BMW K75/K100 service manual downloadable from this site in the Service Manual section.

[Soggz]

No. The increased starting speed function is mechanical. There are gap settings involved. See illustrations and text in Chapter 32-14 of the BMW K75/K100 service manual downloadable from this site in the Service Manual section.

ok,so no, to you don’t see anything g move?. So as you look down into them with the air pod off, and operate the choke lever. You should see something move. Is one or more of the flaps?

[bocutter Ed]

Is one or more of the flaps?

You should leave the flapping to Johnny.

All the flutterbyes are linked together and should move as one ...

[The Mighty Gryphon]

When I had them off,I watched the cable lever move up against a little device held in by a 10mm nut on the end at the back. A small 'plunger' device. This was operating with the lever going on and off. Is that the 'choke sensor',controlling the fuel?

what you are seeing is the switch for the yellow "choke" indicator light in the instrument cluster.  There should be wires coming out of it, unless the P.O. cut them off.

[Soggz]

what you are seeing is the switch for the yellow "choke" indicator light in the instrument cluster.  There should be wires coming out of it, unless the P.O. cut them off.

ah yes, they go up into the loom. Thanks.

[Soggz]

You should leave the flapping to Johnny.

All the flutterbyes are linked together and should move as one ...

lol. Ok, so all flaps move equally on throttle.

[Laitch]

Slowly walk away from the bike holding the tank . . .

An excellent point. If you run with it, onlookers might believe you're stealing it and report you to the authorities.

[Soggz]

Disconnect the fuel lines from the tank and the four pin.

Slowly walk away from the bike holding the tank (in case something is still connected) if your five paces away from the bike you can see if nothing is connected to the bike.

It would be good to clarify.

yes...  nothing is connected...

[Soggz]

Also did you change the load shed relay,  it's a part of the starting circuit,  the light not cutting out is a hallmark that it's malfunctioning. It's a very quick test to see if your bike then starts.

nothing to change it with. I did have the bike running after I put a new battery, fuel pump, filter, screen on, not long after I got it. Running rough with a terrible idle. Had the injectors cleaned, put a new crankcase tube on and vacuum pipe covers, plugs,fixed the leaks.
 Impressions good
Sparks good
Fuel getting through and setting the plugs.
Dried the plugs and put back in.
STILL won’t start...

[Soggz]

Also did you change the load shed relay,  it's a part of the starting circuit,  the light not cutting out is a hallmark that it's malfunctioning. It's a very quick test to see if your bike then starts.

no chance to get another one. But it worked and started before like it.

[Soggz]

You should leave the flapping to Johnny.

All the flutterbyes are linked together and should move as one ...

ye, they do with the throttle, but should they move with the choke lever?

[Soggz]

Swap the load shed and horn relays they are the same on all my bricks

If no go look again at your work on the fan.

ab, ok. The work on the fan is fine. Unplugged the old one, plugged the new one in. What else is there?

[Laitch]

What is the brand and model number of the spark plugs? What is the gap measurement of them? Do the ends that connect with the spark plug wires have terminal nuts or bare screws? Do the plugs connect tightly with the wires or can the wires be easily removed from them?

[Filmcamera]

Are you sure you have the fuel lines correctly attached?  If you swap them by mistake the bike will not start - ie return line attached  to feed and feed line attached to return.

[Soggz]

Are you sure you have the fuel lines correctly attached?  If you swap them by mistake the bike will not start - ie return line attached  to feed and feed line attached to return.

the length of them will only let them fit 1 way

[Soggz]

Does the light now go out while cranking

Dry the plugs and try again

How do you know your fan work is good

One of your tasks is the cause I think

Other than what I've mentioned, I'm out of ideas

becuase I’ve had it running since fitting and testing it. It was running for 10 or so mins, to let the fan come on, so I know the heat sensor works too, otherwise it wouldn’t have come on.

[Soggz]

Look at wiring diagram for anything connected to the four pin,  turn the kill switch on and off twenty times, no go,  clean it

it cranks fine,if dirty kill switch, then it wouldn’t.

[daveson]

True dat.

How about the horn and load relays,  did you swap them? Does the headlight now go out while cranking?

Another quick test put bike in third,  roll back release clutch. Do it a few times. Now what cha got?

The FI relay is a quick test too.

[daveson]

I think a lot of people here are struggling to believe that your bike cranks but if you disconnect power to the fuel pump it won't crank,  is that truly the case,  will you say it categorically.

Then post some photos, then you might get help. While waiting look at the diagrams.

I'm not good with electrickery, this one's beyond me.

[szabgab]

becuase I’ve had it running since fitting and testing it. It was running for 10 or so mins, to let the fan come on, so I know the heat sensor works too, otherwise it wouldn’t have come on.

There are some great suggestions here.  Gryphon is right,  the gear indicator's connector is exactly like the tank one,  so it is easy to mix up and that would explain your no crank situation.  Also do the easy stuff first,  dry the plugs and charge the battery,  a new battery does not mean a fully charged one.  If you still have the trouble persisting,  DO NOT disconnect the fuel pump by it's connector but removing the corresponding fuse.  If still no luck,  you can try everything else suggested.

[daveson]

He said he was five paces away from the bike with the tank in his hand,  he can't do that disconnecting the wrong plug,  it would be good to clarify it categorically.