johnboy Posted October 30, 2015 Share Posted October 30, 2015 Been looking at getting the R1 fuel pump for my bike carb set up, reading on the Yamaha forums the 12v feed to the fuel pump is pulsed via the cdi unit on the bike, does anyone know if these pumps are ok to be wired in with an ignition fed constant 12v rather than pulsed, also where is the best place to mount them, close to tank and low or is in the engine bay ok, will these pumps pull to the engine bay or better pushing fuel from by the tank? Quote Link to comment Share on other sites More sharing options...
garymanc Posted October 30, 2015 Share Posted October 30, 2015 Mounted mine in the boot under the tank coupe , just don't put it were lots going to be exposed to all weather and wired to the normal wiring in a injection car I did read the pump's are better pushing than pulling As I bought a full set up the previous owner had pump in bay with no problems but you will have to prime the fuel lines first Quote Link to comment Share on other sites More sharing options...
MANTAMAN Posted October 30, 2015 Share Posted October 30, 2015 Electric pumps push not pull. well that is what the instructions that came with my facet pump said, mount it as close to and slightly below the fuel tank outlet. Quote Link to comment Share on other sites More sharing options...
mantasrme Posted October 30, 2015 Share Posted October 30, 2015 Its true all electric pumps are designed to push as they are not very good at pulling. Having said that my mate has Joe's old hatch that has R1 carbs on an 8v and the pump is mounted bellow the carbs on the chassis rail. Runs absolutely fine there, and he even ran it out of fuel once. Took a while to drag fuel to the front but it did and started up fine. Quote Link to comment Share on other sites More sharing options...
manta88 Posted October 30, 2015 Share Posted October 30, 2015 Fitted the R1 pump on the existing bracket that had the GTE pump on it under the boot floor, not had any problems yet. Quote Link to comment Share on other sites More sharing options...
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