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#429507 dseward (User) Senior Boarder Posts: 268 Fuel system question 7 Months, 1 Week ago   Well about a month ago I went to the vacume fuel pump. Mounted it on the frame as illustrated in the second option here on the clinic. But I must have oopsed something. Got caught in heavy trafic coming home one day, Stand still to barely moving for about an hour), and she stalled. Pushed to the side of the road. and could not get her to restart. After about 2 hours of nothing I bypassed the fuel pump and got her home. Thr line is the 1/4 running from the petcock to the filter. Filter to the pump, pump run under the manifold to the carb. Used a heavy wall 1/8 line to run the vacume side. So did I miss something when I set this up? have not had a chance to check the pump yet. But it ran great for that month with it. Thanks for any advice as always!   Logged     2007 Road Star Silverado.   The administrator has disabled public write access. #429508 Blackroadie (User) Sometimes I wish you were a pinata ! Platinum Boarder Posts: 4367 Re:Fuel system question 7 Months, 1 Week ago   Sounds like the pump might have just took a dump on ya. Can u hear it clicking when u turn your key on one notch?   Logged     04 MIDNITE SILVERADO   The administrator has disabled public write access. #429513 nightstar57 (User) ride it like ya paid for it .. Platinum Boarder Posts: 2937 Re:Fuel system question 7 Months, 1 Week ago   i tried the vacuum fuel pump for a while and decided to just go pumpless..havent had a problem yet ... just an idea..   Logged     The administrator has disabled public write access. #429691 dseward (User) Senior Boarder Posts: 268 Re:Fuel system question 7 Months, 1 Week ago   How did you do the pumpless? Any issues when your tannk gets low?   Logged     2007 Road Star Silverado.   The administrator has disabled public write access. #429768 texasscott1 (User) Two of a kind Platinum Boarder Posts: 1824 Re:Fuel system question 7 Months, 1 Week ago   Those pumps aren't really "vacuum" pumps. I know they're described as such but they're named by Mikuni as a pulse fuel pump. They're designed to work off the crankcase pulses. The only reason I can see that they've ever worked on the Road Star is because it's such a low rpm engine the manifold vacuum probably isn't steady. Hook one up to a steady vacuum source and it won't do anything. It would probably work better if one spliced into the crankcase vent line close to the valve cover.   Logged     My 99 Standard Test Mule Scott B.   The administrator has disabled public write access. #430283 dseward (User) Senior Boarder Posts: 268 Re:Fuel system question 7 Months, 1 Week ago   Well I have some time this weekend. I guess the pumpless thing is next on the list! Can always put it back if it don't work either. Worst case is start hunting down a good electric pump that don't cost $$$   Logged     2007 Road Star Silverado.   The administrator has disabled public write access. #430315 Lucky1 (User) I kill bugs, with my face Platinum Boarder Posts: 1084 Re:Fuel system question 7 Months, 1 Week ago   texasscott1 wrote: Those pumps aren't really "vacuum" pumps. I know they're described as such but they're named by Mikuni as a pulse fuel pump. They're designed to work off the crankcase pulses. The only reason I can see that they've ever worked on the Road Star is because it's such a low rpm engine the manifold vacuum probably isn't steady. Hook one up to a steady vacuum source and it won't do anything. It would probably work better if one spliced into the crankcase vent line close to the valve cover. +1 The only reason the one on my lawnmower works is because the rubber hose goes to the crank case.   Logged       The administrator has disabled public write access.

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