Mark siebenaler 88 #1 Posted April 16, 2023 I have this old B1 allis with a brigs 7 horse no fuel pump just gravity feed will not start all the time unless I blow in the gas tank first I'm thinking the fuel line is to long or it makes to much of a loop down to bottom of engine then back up into carb. Thoughts? Share this post Link to post Share on other sites
Ed Kennell 38,198 #2 Posted April 16, 2023 Install a marine primer bulb at a low spot in the fuel line for instant starts. 2 Share this post Link to post Share on other sites
SylvanLakeWH 25,594 #3 Posted April 16, 2023 Works like a charm... Here's mine. Share this post Link to post Share on other sites
Achto 27,594 #4 Posted April 16, 2023 (edited) 6 hours ago, Mark siebenaler said: have this old B1 allis with a brigs 7 horse no fuel pump just gravity feed will not start all the time unless I blow in the gas tank first It should have a 9hp Briggs. If the fuel line has a high spot that can trap air this can cause an issue. Any pictures of your fuel line routing? Edited April 16, 2023 by Achto 2 Share this post Link to post Share on other sites
Mark siebenaler 88 #5 Posted April 17, 2023 No I believe it is 7.25 Share this post Link to post Share on other sites
