Speedwagon Posted January 17, 2020 Share Posted January 17, 2020 (edited) 85 Brat, all stock. I pulled the carb apart to clean it as best as I could. When you press the throttle off idle, it sputters as it revs up slowly. While driving, it's ok at steady light throttle, or heavy throttle. But everything in between it doesn't like, bucks and sputters. Seems to run better above 3k rpm. Thoughts on clearing this up? Did I miss a jet or two when cleaning the carb? Edited January 17, 2020 by Speedwagon Quote Link to comment Share on other sites More sharing options...
skishop69 Posted January 17, 2020 Share Posted January 17, 2020 Hitachi's are a notorious PITA. Either there's still dirt inside, one of the vacuum check valves in the vacuum lines are acting up or you didn't get the lines on correctly. Quote Link to comment Share on other sites More sharing options...
Speedwagon Posted January 18, 2020 Author Share Posted January 18, 2020 Do you happen to know where I could get a diagram of all the vacuum lines for these? Quote Link to comment Share on other sites More sharing options...
naru2 Posted January 18, 2020 Share Posted January 18, 2020 On 1/17/2020 at 6:01 AM, Speedwagon said: 85 Brat, all stock. I pulled the carb apart to clean it as best as I could. When you press the throttle off idle, it sputters as it revs up slowly. While driving, it's ok at steady light throttle, or heavy throttle. But everything in between it doesn't like, bucks and sputters. Seems to run better above 3k rpm. Thoughts on clearing this up? Did I miss a jet or two when cleaning the carb? Sounds like dirt in the primary side emulsion tube. The holes are very small. 1 Quote Link to comment Share on other sites More sharing options...
naru2 Posted January 18, 2020 Share Posted January 18, 2020 3 hours ago, Speedwagon said: Do you happen to know where I could get a diagram of all the vacuum lines for these? The 83 4wd one is the one to look at. .https://www.autozone.com/repairguides/Subaru-ff-1-1300-1400-1600-1800-Brat-1970-1984-Repair-Guide/Vacuum-Diagrams/Vacuum-Diagrams/_/P-0900c15280065a54 1 Quote Link to comment Share on other sites More sharing options...
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