Kevint143 Posted March 17, 2014 Share Posted March 17, 2014 Good work! Link to comment Share on other sites More sharing options...
jonpaul03 Posted April 18, 2014 Author Share Posted April 18, 2014 Does anyone have any experience with a Weber offroad carb on the BRATs? Do they typically dump fuel into the primary? Is there an exact way to route the vacuum lines considering the stock carb required more vacuum connections? Link to comment Share on other sites More sharing options...
spicypeanut Posted April 18, 2014 Share Posted April 18, 2014 Does anyone have any experience with a Weber offroad carb on the BRATs? Do they typically dump fuel into the primary? Is there an exact way to route the vacuum lines considering the stock carb required more vacuum connections? I'm having trouble with my vacuum lines. I have no idea which one goes where and it is running like garbage. Wants to die as soon as I try to let the clutch out. Under heavy acceleration its happy, but anything less than that and it bogs and wants to die. Link to comment Share on other sites More sharing options...
jonpaul03 Posted July 5, 2014 Author Share Posted July 5, 2014 It has been a while since I have posted on here. I was having issues with the electric choke on the Weber Carb since I last posted. I ended up replacing the electric choke with a manual choke and now I have control!!! The Weber seems to be operating properly now with the new choke and the placement of the vacuum hoses. 1 Link to comment Share on other sites More sharing options...
jonpaul03 Posted July 5, 2014 Author Share Posted July 5, 2014 Once the choke was figured out I decided to put the BRAT on ramped and block up the back... I pressure washed the hell outta it and scraped the stuff with edges. I rust-reformed it all and still in the process of undercoating it. I am gonna leave it on the ramps so we can fab an exhaust. Any recommendations on a muffler to replace the pre-muffler under the driveshaft? I think I am gonna run one new age muffler rather than a pre-muffler and a muffler. Ideas? 2 Link to comment Share on other sites More sharing options...
jonpaul03 Posted July 5, 2014 Author Share Posted July 5, 2014 And.........I also replaced the gauges. I went with the BRAT gauges with a tachometer. I had to run a new wire to the coil, but it works flawlessly! Plus, they are way more sexy. 1 Link to comment Share on other sites More sharing options...
jonpaul03 Posted August 9, 2014 Author Share Posted August 9, 2014 (edited) I finished the exhaust this weekend! I decided to go with the FlowMaster HP-2 Series muffler. I also decided to take the tailpipe out of the driver side instead of running it under the CV and out the back. Edited August 9, 2014 by jonpaul03 1 Link to comment Share on other sites More sharing options...
Mykeys Toy Posted August 10, 2014 Share Posted August 10, 2014 Glad you got it worked out.. Nice build. The electric choke on mine would do the same thingmy problem was I tapped power from the wrong thing so it never worked. Once I figured that out it ran like a champ. I am not sure about the 78s but the pre muffler on the newer cars is a resonator which helps knock down some of the drone at higher rpm. So how does it sould the flowmaster? got a clip? Mike Link to comment Share on other sites More sharing options...
jonpaul03 Posted August 11, 2014 Author Share Posted August 11, 2014 Thank you! I like having the control with the manual choke more than the electric choke. The Flowmaster definitely sounds more aggressive and a bit louder than stock, but overall it sounds pretty good. The clip I have is with the BRAT sitting in the garage, so it echoes more. The sound in the clip isn't completely accurate. Link to comment Share on other sites More sharing options...
jonpaul03 Posted May 20, 2015 Author Share Posted May 20, 2015 I have been away for a while due to relocating to NM. There was a little progress with my 78'. 1 Link to comment Share on other sites More sharing options...
jonpaul03 Posted April 6, 2017 Author Share Posted April 6, 2017 I had to fabricate an EGR tube and it cracked at the lower 90 degree angle going to the head. I either need to fab another one or delete the EGR all together.... Link to comment Share on other sites More sharing options...
jonpaul03 Posted April 8, 2017 Author Share Posted April 8, 2017 Has anyone seen 1st gen Brats sell recently? If so, how much were they going for? I don't necessarily want to sell mine, but I am curious of what the market is like now. Link to comment Share on other sites More sharing options...
jonpaul03 Posted December 6, 2017 Author Share Posted December 6, 2017 Hey guys! I have been away for a while and now that I am back I have something to ponder with yall. I have an issue with my BRAT and if yall have any advice or have experienced the issue I would love to hear it. It all started shortly after my EGR tube failed and the accelerator pump on my Weber carb failed. I could not get the brat to start unless fuel was poured into the ccarb and it was ran with the choke fully engaged. So.....I will break it down by series of events to follow: 1. Replaced the EGR tube and accelerator pump on the Weber. (problem still persisted) 2. Replaced the original fuel pump with a new one from rockauto. (problem still persisted) 3. Rebuilt the Carb (problem still persisted) 4. Checked/cleaned the sparkplugs which were covered in carbon tar (problem still persisted) 5. Drained the gas tank and replaced fuel with fresh fuel +some stabil for removing moisture (problem still persisted) 6. Replaced all of the fuel hose under the hood with new hose and fuel filter (Problem still persisted) I think I have pretty much eliminated a fuel issue. Any more thoughts on what might be the issue with my BRAT? Before the initial problems the BRAT was running great. It idled around 900 rpm and had very nice throttle response. It didnt smoke or run rich. I am looking for assistance trapping the gremlin! Any words of wisdom are greatly appreciated!!!! Link to comment Share on other sites More sharing options...
Naked Buell Posted December 6, 2017 Share Posted December 6, 2017 It sounds like the carb to me. I have the weber also and she idles high, even with the idle screw backed all the way out. I think that is has has to be the carb. My Brat ran like a swiss watch. Then I had problems found out the diaphram in the dist. went bad. Replace it and upgraded to the Weber and she has never ran like she did. Still runs awesome when your foot is set, but even with a fresh built ea81, she still doesn't run as smooth as she has before. Just my 2 cents. I would think it was the carb but you said you rebuilt the carb. I did the same with mine but I keep thinking it is a carb problem for me or I have a vacuum leak. Link to comment Share on other sites More sharing options...
jonpaul03 Posted December 6, 2017 Author Share Posted December 6, 2017 The weber looked great when I tore her apart. I checked the vacuum hoses and they look good. My weber didnt idle great until the valves, timing, and fuel/air/idle screw were adjusted good, but after I replaced the accelerator pump and EGR tube it hasnt ran good. I am almost thinking its a timing issue or distributor issue...... not sure though Link to comment Share on other sites More sharing options...
Naked Buell Posted December 7, 2017 Share Posted December 7, 2017 Mine drives me mad. It isn't like there is all these vacuum lines or something. It is pretty basically. My ea81 has maybe 7000 miles on her and she drives great other than she idles high and lacks the real power that all want in an Ea. Link to comment Share on other sites More sharing options...
jonpaul03 Posted December 8, 2017 Author Share Posted December 8, 2017 Mine just wont idle without the choke fully engaged. It ran perfect before I replaced the EGR tube and accelerator pump.... doesnt make sense. Link to comment Share on other sites More sharing options...
jonpaul03 Posted February 7, 2018 Author Share Posted February 7, 2018 Does anyone have recommendations on master rebuild kits for Weber 32 DGEV carbs? Link to comment Share on other sites More sharing options...
jonpaul03 Posted March 18, 2018 Author Share Posted March 18, 2018 I need a sanity check!!! Testing a fuel pump by direct connecting it to the battery (with it still hooked up to the fuel lines) should still pump right? I have tested many unhooked this way, but never while installed. Mine clicks once and doesnt pump....clicks again after a few seconds, and then will click again when applied to the battery. It will not do anything between clicks while touching the leads to the battery... Am I going insane, or should it just pump when I apply the leads to the battery???? Link to comment Share on other sites More sharing options...
jonpaul03 Posted March 31, 2018 Author Share Posted March 31, 2018 Hopefully someone responds to this..... Has anyone eliminated the reserve tank and overflow limiter located on the right side/bed of their BRAT? IDK why it is necessary. And.....I have completed a master rebuild on the carb x2, replaced fuel lines, checked under the hood vacuum, replaced plugs, and replaced the fuel pump....still wont run. Link to comment Share on other sites More sharing options...
HawaiiBrat Posted April 2, 2018 Share Posted April 2, 2018 Once the choke was figured out I decided to put the BRAT on ramped and block up the back... I pressure washed the hell outta it and scraped the stuff with edges. I rust-reformed it all and still in the process of undercoating it. I am gonna leave it on the ramps so we can fab an exhaust. Any recommendations on a muffler to replace the pre-muffler under the driveshaft? I think I am gonna run one new age muffler rather than a pre-muffler and a muffler. Ideas? Awesome job on BRAT so far. I admire it. Was wondering where you got your dashmat from? Link to comment Share on other sites More sharing options...
jonpaul03 Posted April 2, 2018 Author Share Posted April 2, 2018 Thank you! Now if only I can get it to run again.... The dashmat came with the BRAT when I purchased it. I am not sure where it originally came from. Link to comment Share on other sites More sharing options...
Weebles Posted April 9, 2018 Share Posted April 9, 2018 (edited) Hopefully someone responds to this..... Has anyone eliminated the reserve tank and overflow limiter located on the right side/bed of their BRAT? IDK why it is necessary. And.....I have completed a master rebuild on the carb x2, replaced fuel lines, checked under the hood vacuum, replaced plugs, and replaced the fuel pump....still wont run. I have a diagram from my 78 Brat owners manual and It looks like there are two reserve tanks. Also from what I have found is that there are quite a few different fuel setups for each year. California models, High Altitude, 4wd, 2wd, and any combination in between. Small differences like added check valves and completely different routing of the vacuum lines. Autozone has a lot of literature on their website and some good diagrams. You have to look closely to notice some of the differences. https://www.autozone.com/repairguides/Subaru-ff-1-1300-1400-1600-1800-Brat-1970-1984-Repair-Guide/Vacuum-Diagrams/Vacuum-Diagrams/_/P-0900c15280065a54 Edited April 9, 2018 by Weebles Link to comment Share on other sites More sharing options...
jonpaul03 Posted April 9, 2018 Author Share Posted April 9, 2018 Thank you! These diagrams are helpful, but I'm not sure how beneficial they will be for the issue I am having. My 78' ran perfectly before the EGR tube and accelerator pump went bad. I replaced both and now she wont run unless choke fully engaged. So...I did a master rebuild on the carb, replaced fuel pump and lines, checked vacuum lines, and flushed the tank. Still wont run without choke fully engaged. (Thats after getting it to start with pouring fuel into the carb) Link to comment Share on other sites More sharing options...
jonpaul03 Posted June 16, 2018 Author Share Posted June 16, 2018 So..... I have continuity between all associated components and I still do not get power to my fuel pump. I have replaced the Voltage Regulator and pump itself. The generator tested good and I replaced the points/condenser. Battery is good and all fuses replaced as well. I currently have 2 pumps hooked up to test different grounds and still nothing. I bypassed the fuel tank and ran the fuel line to a gas can....still nothing. Any ideas?????? Link to comment Share on other sites More sharing options...
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