# Walbro 255 for a bike??? I have it running, but something is up. FUEL TECH GUYS ITT **URL:** \ **Category:** Shift518 Automotive\ **Created:** [June 26, 2012, 6:40am UTC](https://forums.speedlife.net/t/walbro-255-for-a-bike-i-have-it-running-but-something-is-up-fuel-tech-guys-itt/264212 "2012-06-26T06:40:31Z")\ **Posts on this page:** 1\ **Showing post:** 23
**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\ **Post date:** [June 27, 2012, 10:35am UTC](https://forums.speedlife.net/t/walbro-255-for-a-bike-i-have-it-running-but-something-is-up-fuel-tech-guys-itt/264212/23 "2012-06-27T10:35:52Z")
> [@New ride (FAIL! More Info On Page 3.)](https://forums.speedlife.net/t/new-ride-fail-more-info-on-page-3/49928/144): > > Can I ask why you put such a large pump on this bike? That thing has to be bypassing some serious fuel into the tank. > > Definitely just bypasss the stand switch and see what happens(just as a test, repair/rewire before actually riding if retaining the stand). does this bike also happen to have a layover switch that you may not have positioned correctly? I put that pump on it becasue I had it on the shelf, more or less to test the theory about the fueling causing the stall issue. I figured the stock pump that was only putting putting out 35 psi (not even enough to open the FPR) was bad, so this is all I had. It works pefectly fine now, but yeah I am sure its bypassing alot more fuel than it needs to volume wise, but the pressures are fine. Once this thing is ridable, i can swap out the pump for another bosche replacement I found for aorund a hundred bucks. But for now, it looks like more money is going to get dumped into it for clutch work. No lay over/crash switch on the bike. I will test the switch and research what the switch is suposed to tell the ecu. I swear last night, and even yetti said it, why is that a 4 wire on the kick stand. But on the diagram is says its 3 wire into 2 at the plug (25 on the diagram). So maybe I am just loosing my mind (good chance). Diagram says blue/black and black is grounded. BBK goes to pin 16 on the ECU. Also looking at the diagram, it looks like the nutral switch (33 y/g wire) only lights up the dash light. i dont see it returning to the ecu at all. Unless its passing through the bulb and back somehow, which would be dumb, bulb goes out bike wont run! Wiring diagram: [http://www.ducati.ms/forums/attachments/supersport/88221d1303117336-wiring-diagram-needed-99-900ss-900ssie-2001-coloured-wiring.pdf](http://www.ducati.ms/forums/attachments/supersport/88221d1303117336-wiring-diagram-needed-99-900ss-900ssie-2001-coloured-wiring.pdf) Page 67 for wiring legend: [http://www.carlsalter.com/pdfs/Ducati\_Supersport\_'02\_owner's\_manual.pdf](http://www.carlsalter.com/pdfs/Ducati_Supersport_%2702_owner%27s_manual.pdf) --- _[View the full topic](https://forums.speedlife.net/t/walbro-255-for-a-bike-i-have-it-running-but-something-is-up-fuel-tech-guys-itt/264212)._