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BEP 3.0 works with Acewell speedo, plug and play! (for the most part) Thu Oct 26, 2017 8:31 pm
boostd4
Silver member
Hooray!
First and foremost, thanks to the kind folk on this forum, specifically robmack.
I'm using the Marulabs BEP 3.0 and an Acewell 6456 seen here:
I'm doing more of a streetfighter build than cafe, so I wanted the more modern sportbike like speedometer.
If anyone is tackling this a few pointers - there are a few wires that come with ground loops and connectors already on them from Acewell. Specifically the speed, fuel, and temp connectors. You can just cut the ground wires out. The colored wire (+) for these signals goes right into the BEP 3.0. There are 2 RPM wires that came on my Acewell. One gray and one yellow. I first hooked up the yellow wire and though RPM worked, it jumped around at idle quite a bit - it settled when revved. The gray wire does not do this - I saw maybe one little flicker, but was solid otherwise - use the gray wire.
The low fuel light worked for my 85 K100RS. It does not have a floater in the tank so the fuel gauge on the Acewell reads full bars above 4L and no bars (with low fuel light icon coming on in cluster) once you go below 4L. I have a little more than 4L in my tank right now and saw the low fuel light come on when I was on a hill and the gas sloshed around a bit - I believe it to be working properly.
When I hooked the speed+ from the Acewell to the SPD input on the BEP I got erratic readings at first. It would say "0mph" then would jump around when I revved it in neutral. I was concerned it wasn't going to work, but once I rode the bike around the block it stopped doing that almost immediately. Perhaps it needed to see a signal from the sensor to calibrate itself.
Anyway, I'm happy - it was very easy except finding room under the tank for the wires. Everything worked last night and this morning I have a check engine light and oil pressure light on the Acewell. I know for a fact the Check engine light wire is not hooked to anything at all - I believe a wire or two is getting smashed. I couldn't make room under the crossbar of the frame that the upright bar going under the gas tank tees into. The wires lay flat over this bar and I think the gas tank is smashing them. I'll update the thread when I've got it figured out.
-Adam
