BEP 3.0 questions

[EdwarddRichtofen]

Hello friends, I have a be 3.0. Every time I plug it into my cluster connector and try to start my bike, the top fuse blows. I do not have a speedometer hooked up to the BEP. Only the bike is connected to the BEP.  So there is no wiring to be incorrect. Has anyone ever experienced this?

[Kaos]

Whats the amperage on the fuse?
A starter has a lot of draw. When wired incorrectly (read it as too many electric components active on start) especially adding choke or throttle, the amp draw will blow your fuse.
So its likely to be either faulty wiring, or incorrect wiring.

[EdwarddRichtofen]

The fuse is a 7.5… all wiring on the bike is stock.. should I try putting a 10 in its place?

[Kaos]

Well no. Depending on your bike model and year it will tell you why the fuse blows.
Also do you not have a instrument cluster installed at all?
Saying all wiring is stock and that there could be no incorrect wiring is a contradiction when your bike wont start.
It could be as simple as a faulty wire.
But we will still need some more info

[EdwarddRichtofen]

There is no instrument cluster installed into the BEP.. when the BEP is not plugged in the bike starts fine with clutch in.. with the BEP, even with no cluster installed into the BEP, the fuse blows.. she’s a 1991 bmw k75s.. I may dig into the wiring harness and look for issues

[Laitch]

There is no instrument cluster installed into the BEP.. when the BEP is not plugged in the bike starts fine with clutch in..

Why is the BEP installed in the first place?Why is the BEP installed in the first place?

If you don't understand the danger caused by installing a larger fuse than that which is specified, you likely shouldn't be "digging" into the wiring. This situation has earmarks of a miss-installation.What might help is your posting a photo of how you wired the BEP clearly showing which BMW wire colors are installed in which BEP receivers. There are several members who might chime in here who've had no problems with BEP installation.

[Kaos]

I am not 100% sure but the top fuse on that model is for the instrument cluster.
Its not unheard of for the instrument cluster fuse to blow.
Without the instrument cluster, the BEP may leave some wires un-terminated or direct excess voltage to the instrument circuit meant to be grounded by the cluster, leading to a short and causing the fuse to blow.
The instrument cluster wiring is also tied into warning lights and diagnostic functions, so removing it or leaving its connector open can create a "dead end" or short in the circuit.

[Laitch]

How helpful can unsure information be, Kaos? Certainly, it could have entertainment value down the road. 
I'm not sure it took me more than 10 seconds to look it up. You lucked out this time. 

[Kaos]

 
Well. If therse one thing I learned in my short time as a bricker that there is always someone, somewhere with some oddity. Just because someone touched it, a region thing. I am not even sure how you can be certain.
Maybe i shouldve stated that it supposedly has that fuse.
And otherwise ill just contribute the error to being a newbie.

[Laitch]

And otherwise ill just contribute the error to being a newbie.

To which error are you referring? If you have a numbered list, you can just refer to the specific number.

[Kaos]

None ofcourse, i am not keeping score

[EdwarddRichtofen]

Hey guys thanks for the support so far.. here is a photo of how my BEP is attached. As I said.. no wires plugged into the BEP apart from the original harness..

[EdwarddRichtofen]

I’m at the point where I will get a new BEP.. if that doesn’t work I’ll replace the wiring harness.. I’m inexperienced at chasing shorts (if that is the case,) but, I can replace a harness.. if it is a short it can must be from the instrument cluster plug.. right?

[Laitch]

I don't see any wires attached from the BEP to anywhere else. What is the speedo/tacho you're attaching and where are its wires attached?

[Kaos]

I’m at the point where I will get a new BEP.. if that doesn’t work I’ll replace the wiring harness.. I’m inexperienced at chasing shorts (if that is the case,) but, I can replace a harness.. if it is a short it can must be from the instrument cluster plug.. right?

No.
As Liatch asked, where are the wires to the cluster, or any other?
Besides the banter there was one who wrote that :

Its not unheard of for the instrument cluster fuse to blow.
Without the instrument cluster.

What it means is, start connecting wires so circuits can be completed.