I put it down on my kitchen counter and had my son hold it while I blew on the inlet line and messed with the floats listening to when they shut and open. Passenger Seat Single Allen head bolt. Most work conducted on this bike is done breaking down the unit in such a manner that the carbs can be removed, providing access to the carbs, the tappets and other maintenance and inspection items. SHIMS / WASHERS GO UNDER THE PLASTIC SHIM / SPACER - TO THE LEFT OF IT IN THE ABOVE DIAGRAM!! Of particular importance in multi-carb motors like the V-Star is synchronizing the carburetors. 8. Main jets can still be changed to 1 step larger, but the PMS adjust can accomplish pretty much the same thing in many cases. Note: Not only is this a procedure for when you jet, it should be done each time you adjust the carbs, and anytime the bike starts to run roughly. Sign up for a new account in our community. Free shipping on many items | Browse your favorite brands . Save your brain for something a little more important. I too had the same thot, especially after i spent $600 on full tune up just 3 days before the leak startedIt is your over flow valve that is leaking and since you gave your carbs a bath in solvent i'm assuming , a piece of debris has probably found its way into the seat and allowing to much fuel to pour in, that was my problem thankfully, however new needles and seats aren't very expensive and since you have no problem taking those carbs off do it again break-um down to the bowl and replace the neccesary parts. This gives good midrange performance, but leaves the top end lacking. 4. The carburetor vacuum ports are on the ducts which leads from each carburetor into the cylinder head. The NADA Guide value is $3,090 for Low retail and $3,675 for Average retail. Flip the carb over so that the cup-shaped diaphragms are facing upward. Get a Kit From MaxAir - $49 plus shipping. 1. Put your tools in your tool box and have a cold one. Wrongly adjusted float height makes the engine fail to run. See note below. You have just modified the distance that the float will close. Two bolts, on both the Custom and the Classic. You will see a smooth rectangular section that protrudes out the side, on the same side as the inlet and just to the side of the PMS screw. Remove the four diaphragm screws, being very careful not to strip them. Others make there own. LV-10 CARBON FIBER for APRILIA TUONO V4 1100/FACTORY 2021 - 2023. the bench synch is merely to get you close to get the bike running. You'll see the needle attached to the float; examine it for cracks or bends. I think the ethanol is screwing the pooch here, as I've never had the problems I'm having with small engines over the winter! Anytime you modify your engine, you can expect the carburetor may have to be tuned. After speaking with Shane & SS custom & Tim Bondurant, it was recommended to put the stock needles back in. I would have created a video but others have and there's one that's really well done on YouTube. Today, I just got the bike out and I topped up the gas with 1/2 can of Sea Foam added and took the bike on the highway. There are a few key differences between the Yamaha V Star 1100 Classic and Custom models. ), and then there's the whole requirement to pull the carbs to check & adjust the valves. I can cruise 65-70mph now in 4th, where previously, it was hard to keep 70mp in 5th. Make sure you shut off your petcock after every ride. Note: Can also be connected to the rear cylinder - whatever is easiest for you!). Follow all of the instructions below, including the use of jetting chart and simply purchase the jets listed. Take tank and top center air box off. Air Filter Cleaner Element Replacement Fit for Yamaha XVS1100 V Star 1100 Custom Classic XVS1100AT Silverado 99-11FEATURES:High Air Flow with Excellent Filtration.Environmentally Friendly.Designed to Increase Horsepower and Acceleration.Washable and Reusable.They offer bigger air-flow, with almost 99% filtering efficie (leave open). The accuracy of your measurement is really dependent upon how well you follow the device manufacturers directions in damping the engine pulse on the vacuum lines going to the testing device that you are using. Remove the drain screws from the bosses on the float bowl covers. Your V-Star's carburetors have a venturi that air flows through. Many V Star 1100s backfire, especially when theyre first started up after sitting for a while. Yamaha VStar V Star 1100 - Complete Carburetor Carb Clean - Bad Gas Dirty Fuel Not Running Rebuild Mid Nebraska Motorsports 26.7K subscribers Subscribe 487 37K views 4 years ago Yamaha Vstar In. I agree, keep the tank full and put sta bil in . (right rear seam & left front seam). Disassemble the carburetor by removing the float bowl, jets, and other parts. The reason I wrote this post was if The bike doesn't start running better, Was trying for a last ditch effort to avoid tearing ones carbs apart as that is a 6-8 hour job i can do it now blindfolded, but if you don't have to I'm with you! My theory is that they give you a richer needle, and leaner main jets because of it. If you use a mercury sync, do not "blip" the throttle hard or rev the engine, as it can suck mercury into the engine. For pods, add the specified shim below the plastic spacer. You got her back to normal without a major tear down. 2. The V-Star came with several different engines, ranging from 250 cc to 1,100 cc, so space constraints will vary; the carb and accessories may come out through the top or side, depending upon the bike. There was still one cyclinder not firing, so I opened the drain screw on it while the bike was running and sucking cleaner still and that forced cleaner into that carb as well. In that rare instance, please use table "B". 110, Mikuni Pilot Jets: N224.103 / 17.5-zzzz where zzzz is the jet size, i.e. All carburetors need maintenance from time to time. 3. ) Its a done deal! When you purchase through links on our site, we may earn an affiliate commission, which supports our community. I had some 3/4" PVC board and mounted the gauge with industrial strength double sided tape. The Yamaha V Star 1100 is a great bike with plenty of power. Either size will do the job, but 3/16 is better! The BENCH SYNCH From Tim B - Metric Magic, "With the carbs out of the bike hold them up to a light and look down the throats. Starting with a 20 pilot and 2.5 turns out, try to clean this up by opening the screws 1/4 turn at a time. Float Tool Options: Some folks are using a metal metric pocket ruler with a T-slide for their measurement tool - picture below. Get a kit from SickMick - $35 (shipped continental US) xsickmickx@gmail.com. Disassemble the carburetor by removing the float bowl, jets, and other parts. Synch Screw Modification For Easier Carb Synching - from Maustarman. -- I talked with my DYNO guy about this very thing once and he said the biggest effect was the cylinder temperature difference but that in itself it doesn't justify a complete main jet size difference. )This is a reference guide for the BSR37/2 Mikuni carb only. 5.0 / 5.0. Swapping them around may result in an inconsistent air-fuel ratio. Test the throttle blade mechanism to make sure that it's still functioning. These are footnotes. Ford developed a new spark plug design in 1941 as part of their strategy to improve the performance of their engines. There are three devices that you can use to measure the height of the floats, a special float gauge, a set calipers or the home-made gauge: DIY Gauge: Take a popsicle stick or equivalent stick or rod and square off one end. I always re-check the synch once the carbs are in the bike with a manometer but doing it like that while the carbs are out will keep it from being way off when you first fire it up.". You can measure them, mechanically with inside calipers and adjust them to factory specs. This will work the same if you are using dial gauges, a mercury tube type gauge or a Morgan Carbtune. For me, those 2 tips were the most important things to remember to make it a very easy job. Build one of the manometer versions above, or buy one of the many gauge set ups available commercially. 2. Do a few sprays every few minutes to let any dirt and grime become loose. . Free LeoVince T-Shirt with LeoVince & Muc-Off Cleaning Kit. MotorcycleForums.net is the leading motorcycle forum for news, specs, reviews and discussions, including road and sport, classic and dirt bikes. 4. Comparison of stock and and the Pilot Air Bleeds supplied in the Kuryakyn Hypercharger Kit. Assuming you have a Mikuni carburetor, here are the steps to clean it: Speedometer lead connector You will find the connector under the Igniter plate. ", Contact Sick Mick at xsickmickx@gmail.com - Paypal accepted, Forum Thread http://forums.delphiforums.com/yamaha1100/messages?msg=55529.1. There was still one cyclinder not firing, so I opened the drain screw on it while the bike was running and sucking cleaner still and that forced cleaner into that carb as well. Button it up! I did this for about 5 mins of running at high idle. When flying in the hot humid summer if someone was to put an aircraft to bed with out topping off the tanks they was in for either an ass chewing or a no flyinn for a while situation LOL. In the idle circuit you're not going very fast so air-flow isn't a big deal and on the average riding day you're hardly into the main jets. The link is a universal DIY. Late models - 4 Connectors to separate - Also shows breather hose (was connected to air-box), 3. (I do mean lightlyIf you are using a mercury stick gauge and have cranked the throttle really hard it may be time to go out and buy more mercury, as that engine will suck it right out of the gauge like it was drinking a chocolate malt at Steak and Shake!). ** - Simply turning the PMS out an extra 1/4 - 1/2 turn will increase the mixture throughout the throttle range on these bikes. For occasional riding at higher altitudes, most riders have no major issues with the standard jetting, however you may need to adjust idle speed slightly. Carb Jetting. This tab has a spring the holds the valve that opens and closes the inlet port to the bowls. this process will work if the carbs aren't badly clogged. Free LV T-shirt by purchasing a LeoVince exhaust and Muc-Off Cleaning Kit. Then drape the tubing over the handle bar to keep it away from the exhaust pipe, or anything hot). Come join the discussion about performance modifications, troubleshooting, maintenance, and more! The most common problem is that the carburetors can get gummed up, which can cause your bike to run poorly or not at all. About 1/4-turn past snug should suffice. '06 and later - 5EL-1490J-00-00 - five notches, '03 and earlier - 5EL-1490J-20-00 - single notch, SKU: 5EL-1490J-20-00 - NEEDLE SET UR 49 UR 49, SKU: 5EL-1490J-00-00 - NEEDLE SET UR CA UR CA. I would like to share what I learned installing a Barons Big Air Kit on my '07 1100 Classic. Identify the jets; they're in the recess where the float needle went in. I filed down the ring shank to make removing it off the bike tube easier. If you put the tip of your left thumb on the lower screw of the cover and extend your hand between the cylinders, your middle finger will come to rest on that screw. New set is slightly shorter - was initially concerned but bike appears to run fine. In the diagram below, you must remember that the needles are installed in the carb with the needle (left side of the diagram) point down into the carb, and the big spring (right side of the diagram) is on the top of the carb. Assuming you are referring to the 1999 Yamaha V Star 1100 Classic: The idle circuit seemed rich so I closed up the PMS to 2.75 turns. With expertise in marketing, publishing, advertising and public relations, John has founded four writing-related ventures. 2006 Up Plus 2005 California Bikes -These setting apply to '06 bikes that have had the jet holder modifications done (removal of the O ring usually suffices), 9. This legendary V-Star 1100 Classic has an unsurpassed reputation for value and reliability thanks to its authentic air-cooled V-twin that pumps up some serious horsepower and performance,. Once you have the carburetors assembled and installed on the bike you will find that adjusting the PMS screws and idle speed has greater sensitivity and dont forget to sync the carburetors to each other. The bracket that holds the small chrome cover on the left side of the carbs can be clamped into a vise, freeing both your hands for the next steps. I don't like cracking into carbs unless I really have too. Or is it supposed to be connected to a hose? You might consider just doing one carburetor at a time. Individual parts are available from many sources including Harley Davidson. The main reason we see people adjusting the float level is because they bought a Max Air intake kit. Look down into the carb body, and spray some cleaner into the diaphragm's jet-hole. Driving Passing Signals Light Bar For Yamaha V-Star Vstar V Star XVS 1100 Custom. Free shipping on many items | Browse your favorite brands . Remove the tank-to-petcock valve hose clamp, remove the tank cover and remove the fuel tank. No hesitation and idles nice and smooth. Received my rebuild kit and installed this morning. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and builder. Thanks to 09alex1977 for researching this. Then, adjust to factory specs. Here's some of them. -- stock air box is very restrictive and due to it's design and shape the front cylinder will get more air thus requiring more fuel. More info available in the link to the forum thread. 9. ) You can do all of this if you want, but the easiest method is listed above. While many modern V-twin motorcycles have gone to fuel injection, Yamaha's V-Star 1100 is carbureted. . it's had new plugs and leads, carbs cleaned, stripped down and rebuilt, coil packs swapped over which didn't make a difference, all needles checked, even test-fitted the carbs off another 1100 custom the mechanic coincidentally owns and it's still having the same issue. Which began shortly after the release of the V Star 1100 in 1999. 3. You'll see the holes around the bottom cylinder of the jet. This is the location where the the float closes the valve. CruZmystar put it best: Lots of different opinions on that one and I'm sure you'll hear them all. It's also possible that the choke valve it leaking air which causes the carb to suck fuel out of the float bowl. link to Why did Ford use two-piece spark plugs? No big deal if you've ever seen the inside of a carb, and still doable if you haven't. It is equally clear that you should proceed with caution in all other cases (non-MaxAir Predator Pro needles), and NOT use this procedure until your bike exhibits some symptoms pointing to over rich situations, that cannot be cured by other means. Reset the IDLE screw to original position. PLEASE NOTE!!! Carb synching and cleaning information is in the MAINTENANCE section or click here > Carburetor, "The wKB" V-Star 1100 Wiki Knowledge Base, http://forums.delphiforums.com/yamaha1100/messages?msg=55529.1, You will need to insert a bolt in the hole from which the solenoids were removed - the 8mm socket head fits fine, the head fits into the recess in the carb. 5.0 / 5.0. 4. ) 5. Set the jet aside. (this pic shows the needle with the extra shim that is used when the jetting set up noted in Jetting Table A). ** We've discovered that simply turning the PMS out an extra 1/4 - 1/2 turn will increase the mixture throughout the throttle range on these bikes. Remove the carburetor from the motorcycle. (to reinstall the fasteners, you must push the post back up through the body of the fastener until it extends far enough up from the fastener top to allow the body to compress. Insert the fastener into the hole and depress the post to where it is flush with the fastener body. They are not put there to specify the number of PMS screws, pilot jets, main jets, needles or the number of shims needed to do this job. Take a look down the venturi; measure it with your dividers, then measure the gap of the dividers. The jetting recommendations below are only a good starting point. (it's possible that's all you need now, which is like a 30 minute job if that.if the bike has been sitting for years, then get it cleaned). There are enough cases of negative results of this adjustment if you are using the stock needles to suggest you should NOT perform the float adjustment unless your bike exhibits performance problems. makes sense to me. Follow the manufacturers instructions!!! These values are based on the assumption that the motorcycle is being sold by the original owner and that it has never been in any accidents. . a.) From mirrors and license plate frames to windshields and kickstands, we carry the most reliable and stylish V-Star 1100 parts on the market, priced to keep plenty of gas money in your pocket. (Note: Resistors from Radio Shack - in the Drawers $1 or less each). Why did Ford use two-piece spark plugs? If you've done the "POD" modifications or gone to aftermarket pipes, you know those solenoids in the float bowls aren't doing much of anything except hanging there with an ugly wire coming out. Be very careful not to strip the screw heads. Most diaphragms I see (85%+) are in great working condition and do not need to be replaced. 2. Lee las reseas. Pilot Mixture Screws. Just my preference. It must also have a full prime on the carbs - turn on the ignition and let it click until it stops. The first thing to check is your spark plugs. V STAR 1100 Riders Forum. It's a far superior tool to tune your carburetors. Wrap the threads with Teflon tape and just screw them together tight. Plastic 3/16" connector to connect to vacuum tube from the carb. Sick Mick*: "I just put together some "SSD" (Shutoff Solenoid Delete) kits for 2006 - up V Star 1100's. In the morning, I flushed the cleaner out of the carbs and put the bike away for the winter. Just follow this link to get to the forum - V Star 1100 Riders Forum. How could you tell that one cylinder wasn't firing? On the left side of your engine, you will find a chrome carburetor cover. Backfire on decel usually means that it is too lean at idle. Soak all of the parts in carburetor cleaner for a few hours. On the left side of carbs is the bracket Turn the carbs 90 degrees so that bracket is facing DOWN and set it on level surface. I also found the way the. If theyre old or dirty, they could be the cause of the backfiring. Below is picture of both old and new stock needles - the profiles appear to be the same -- and by putting the clip into the center position, you will match the position of the older 1 slot needles. The seafoam with fuel stabalizer won't hurt. Label and disconnect all the hoses, or take a few pictures in the process of disassembly so you can get things back where they belong later. Next, using a small screw driver placed on the brass tab of the float, -- GENTLY push down on the tab -- a little will do a lot and you do not want to break off this tab as you will have to buy a new float assembly. Take a sewing needle or something of that sort and bring the idle screw down until the needle will barely slide underneath one butterfly (try and remember how many times you turn it so you can get it back to where it was when you're done). They provide original Mikuni main jets in 107.5 & 110 for Stock bikes, and 112.5 & 115 for aftermarket pipes. 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