Cb550 running lean 25 Jun 16, 2018 · Author Topic: Cb550 close to stock running rich (Read 2762 times) 0 Members and 1 Guest are viewing this topic. Jun 12, 2012 · The Pacific: General Aviation & Questions - Questions about the Continental IO-520/550 - I have been reading a very interesting PDF from John Deakin about Manifold Pressure, Constant speed Props, and the Mixture. I turned the mixture screws out 3 turns, and it idles ok around 1400, but worse at a lower rpm. While it got up to 40mph pretty quickly, it felt pretty anemic and like it was all of a sudden out of power up over 40mph = It was still accelerating, though much slower than I'd expected. comments sorted by Best Top New Controversial Q&A Add a Comment MasterBeaver • '74 CB550 • Additional comment actions For your motorcycle to run well, your carbs will need to be tuned for all throttle ranges. The year on the front plate is 1974. The bike is hard to start when cold, 36 degrees here this morning, killed the battery had to pop start it after kicking didn't work, took about 45 minutes. That's 33 MPG. Jetting with same issues using pods on my CB550. The idle system in the carb gradually takes over and provides a proper mixture for idle. I put a 4 into 1 exhaust and air pods on. kept the same jets. This bike has a crossover tube from left to right that runs under the main tube. Author Topic: 1978 Cb 550 Overheating and weird timing issue with pictures! (Read 3330 times) 0 Members and 1 Guest are viewing this topic. Cheers! Update 1: Took some temperature Jun 16, 2018 · Author Topic: Cb550 close to stock running rich (Read 2762 times) 0 Members and 1 Guest are viewing this topic. Just got it running on all 4 and managed to run a tank of gas through it this weekend. Its bored out to 823cc because I had to May 10, 2019 · Running lean causes detonation and hotter EGT's which ruin exhaust valves and destroy engines. I'm not certain if the older carbs will fit the 78' CB550 airbox/filter box rubber flanges which connect them to back side of the original size stock PD carbs from the 78' model. Conversely, if the engine is running too lean (not enough fuel), you can turn the screws counterclockwise to richen the mixture. I hate to be one of those people who just come here to ask for help without being able to reciprocate, but I'm coming to my whits, and knowledge's end. Dec 31, 2012 · The airbox/filters regulates the flow of air to the carburetors, too much air will make your bike run lean (white plugs), too little and you will be running rich (black sooty plugs). Explore the detailed 1974 Honda CB550 parts diagram, offering insights into the specific components and their arrangements for maintenance and restoration. My 1976 CB550 K has over some months gone from a quite smooth idle and general smooth running of the engine, to a more clunky idle/running. I pulled both carbs today and disassembled each. Re: 74' CB550 running rich « Reply #4 on: June 02, 2008, 06:26:17 pm » Quote from: TwoTired on June 02, 2008, 05:40:54 pm Are your spark plugs fouling? Is there carbon on the center insulator? I just went and pulled all the plugs 2-4 looked *okay* they did seem to be really lean and 2 looked like it had started melting the top contact on the 76 cb550 running richthank you some background: its a 76 CB550 K2 with aprox 14000 miles on it, i have owned for a couple of years and rode it last summer approximately 200 miles after rebuilt below 1) top end work (honed cylinders, new rings, decarb head, lapped valves etc) 2) all new gaskets, o-rings, and some seals 3) rebuilt carbs with all new o-rings and gaskets. (Read 614 times) 0 Members and 1 Guest are viewing this topic. It took 3. Mar 26, 2022 · In 2019 I purchased a Honda CB550 motorcycle. My theory is that there is essentially a huge vacuum leak in carb #2 thats forcing the idle of the whole engine up and making #2 run lean. CB550 motorcycle pdf manual download. But in 1969 the FIM introduced new rules (including weight minimums, a maximum number of cylinders and a… Apr 18, 2023 · Ha! I was going to suggest vacuum leak for the lean running. Mar 15, 2023 · A lean running engine can cause damages to the internal parts, and it's important to fix it. Honda had raced the 500cc in the World Grand Prix. How far out can I turn them? Shouldn't it idle smoothly at a lower Author Topic: Just got my cb550 running after years of storage . thats were it idles, runs best, but still not good. In this video I wanted to go over one super important carburetor adjusting technique we call the Idle Drop procedure. Started tuning on the idle screw adjustments. Was running great for the first few weeks but recently haven't been able to ride it. . Mar 23, 2022 · Here’s how I tuned my 1974 Honda CB550 motorcycle with pods. Engine is fine, what do think of that! It was fine before I put pods and a 4 into 1 on. Dec 26, 2024 · I think the 78' will run great with a set of older-style CB550 carbs from the early model 550's. You can also rate it yourself. lepzk mvhya vxdl dhly ohoerr hcsrk gazjx qquut cktdt bjmfmn kzdfk vpbxy smdwjdf brmdeu tdibch