motorbikemike45
Member
On my new bike (GEBE drive system with a Robin EHO35) I first mounted the 1/2 gallon remote fuel tank about 12 inches below the engine. It started, idled, and ran under light load fine, even at high RPM, but it seemed to starve for gas in the midrange under hard acceleration with WOT. I remounted the tank about 6 inches higher, but still no joy. Now I have again moved the tank higher, to about the same level as the carb and now everthing seems to be working as it should.
I thought the stock Walbro diaphram carb would pump the gas up from a foot or so, but I was obviously wrong. Is this typical of this type/size diaphram carb, or is it a problem with this particular carb I happened to get on this engine? I'll rebuild the carb if I thought new diaphrams would help. It looked a lot better when it was lower, but function overules looks every time. Ideas?
I thought the stock Walbro diaphram carb would pump the gas up from a foot or so, but I was obviously wrong. Is this typical of this type/size diaphram carb, or is it a problem with this particular carb I happened to get on this engine? I'll rebuild the carb if I thought new diaphrams would help. It looked a lot better when it was lower, but function overules looks every time. Ideas?