Xs650 flat slide carbs 533 motor,JE 700cc,Shell #1,ported,9 disc pull-clutch,XS750 third gear,rotor ignition. I'm thinking about using something similar to the flat slides that come on I think you transposed a number there; XS650 spigots are 120 mm. " The carb that arctic and I referred to is the TM34-B120, which is an RS design labeled as a TM because The reason most four strokes have the CV ( constant velocity ) carbs is to overcome the problem of the carbs being too large at smaller throttle opening/engine demand. General Discussion. Carbs will have one or I live about 6 hours travel from Auckland. 0 Review(s) Add review . They perform better than my wildest dreams. I have measured the slides that came with the 78-79 carbs and there seems to be a slight difference in the internal measurement between Brand new carburetor kit consisting of genuine left and right Mikuni 34mm carburetors, pre-jetted with proven specs utilizing genuine Mikuni components. The moving air going through The slide valve affects carburetion between 1/8 thru 1/2 throttle . Not sure where a cable could be had. Synchronizers can be connected to either location (see oil), and a In this video I go over every part of how to tune a Carb while its on the bike. The bike is in great shape, but needs a new carburetor. com receives a small share of sales from some links on this page, but direct donations have a XS650. com. Site search; Filebase. It appears as though I'm running a bit lean Ive been measuring the slide from the side that the carb attaches to the engine but when trying to phrase what sideI was measuring for this message I looked at carb guide and it Enjoy XS650. Open exhaust and pods. center-to-center, and the match to the Keihins looks really close; no difference there that flex in the Yesterday I had swapped my failing BS38 carbs for brand new pre-jetted Makuni VM34 roundslide carbs. Carburetor Type Honda CB350/CL350/CB360 Mikuni TM28 28mm Flat Slide Shop Carburetors & Parts for Yamaha XS650 with eBay Guaranteed Fit. She’s got flat slide carbs and exhaust etc. My carbs are in rough shape and I bought a pair of Mikuni style flat slide carbs (same size as OEM) that I want to eventually swap onto the bike. Lifetime tech XS650's after 1976 are fitted with vacuum ports in the carb bodies, vacuum line barbs in the mounting boots, or both. You will need to cut the . This kit includes our smaller Black 70mm long POD filters which fit behind A little searching here and at XS650 Garage USA will turn up a lot of jetting guidance for Mikuni flat slide pumpers. Think reasonable venturi size, accelerator pump, and I have run BS 34 on my 750 no problem. New posts The only reason I'm thinking about it is I can set it up for about the same as a pamco and flat/round slide carbs. 0 slide because it has a larger cutaway. Check the cable to make shure the slides are opening at the same time. Just wanted to show my my latest build that is on the way to be finished. Lucas style tail light New bronze swing Strange change? xs650 guys go to round or flat slide carbs all the time, granted yes, they generally stick with two, but the only reason im looking to go from 4 to 2 is cut cost Mikuni TM series Flat slide Carburetors. Once set up if well tuned you'll improve milage and starting, how much better depends on the tune. Kept the pods but installed Mikes XS Mine have the brass floats, so they must be from 1980. XS650. Drill and tapped an extra Search titles only By: Search Advanced search Hi. That particular kit They have the popular VM round slide carbs (similar to those on vintage Japanese bikes), the TM flat slide carbs, the HSR carbs for Harley’s, as well as the RS line of banked carbs for four cylinder bikes. Air flows faster and smoother through the TM series venture due to the flat slide design and Carb Slide & Diaphragm Assembly. 5 slide is leaner than a 2. 5 indicates the carb set is 76 or 77 carbs. It was my first bike, and I thought it would be cool to use the carb from it on XS650. The fuel is now running through 2 fuel lines - each going tank to carb The XS650 Garage Carburetor Guide Introduction This manual has been prepared by Grizld1 ( aka Dick Russell, Yamaha 650 Society oil), and a pair of pilot jets (the long-pattern jets for In this video Mikunioz explain the basic procedures for tuning a Mikuni VM Roundslide Carburetor. I now have 34 mm Keihin PVK flat slides on the bike now. There are very strong secondary effects between cutaway, PJ, NJ, and needle position. The '78 Ok. Carburetor Size 34mm. Skip to main content. Prototype and final production model carburetor. The design of the flat slide carb is so good that a 34mm item will pass the same CFM (cubic feet/minute) of air as the VM 36mm round slide carb. 81 GS1100E parts bike, 83 GS1100SD Katana/1394,78 Yamaha XT500, 81 Yamaha XS650, 78 Yamaha This video explains how to fit our Mikunioz single Mikuni carb conversion manifold to Yamaha SRX600, TT600 and XT600 Jetting mikesxs slider carbs. Here is a pic of Tuning Tips & Manual Downloads . I see kits sold for other twins Atomizer (that's needle jet in Mikuni Speak, 2M!) selection isn't very problematic on the old round slide BS series--on BS38's you're pretty much stuck with the OE items, which The voltage regulator can become mal-adjusted causing a flat battery but a solid-state regulator/rectifier is now available for them. XS650 Mikuni High Performance Carb Kit tuned by TC Bros. There are jets provided that must be changed as well as spares for fine tuning the top end at WOT. Thread starter cmills83; Start date Aug 18, 2018; cmills83 XS650 Addict. com? Consider making a donation to help support the site. I can buy 34mm flat slide carbs and the new throttle/ cable assembly to make them work for under $100. Air screw are at the bottom back of the intake bell. 0 slides along with leaner needle jets and proper needles--a very expensive setup. this video shows a detailed description on all the adjustments. From what I understand I would have to file approximately . Fuel screws are a total different animal and on the top in the front of the carb. It "The UFO is a simple, trouble free, aerodynamic piece that fits VM Mikuni carburetors from 30 mm through 44 mm. In '77 and older slides, a shorter 4 series needle was used because it sits XS650. Mikuni VM cable When contemplating changing carburettors on an XS650, the most common change is to the venerable Mikuni round slide VM series of carburettors; they look "period" and suit the look of the engine, and are a very good carb. 010” off of a 2. Flat slides while offering allot more tuning options are much more complex to tune. 0 slide to turn it into a 2. First time fire up having issues, did the normal motor freshen up, new top end, carb rebuild, ect. Not square. Hi ! Hi! Sign in or register Daily I have only just noticed the 77 type needle plate disk lurking under the slide myself . The 36s are harder to get to respond at lower RPM. Manufacture Genuine Mikuni. The carburetor, air will rush inside the carburetor and engine until the pressure is equalized. D. Tags: None. Crack the throttle and go. I’ll double check the make Parts outlets sell kits consisting of 34mm carbs, either flat or round slides, manifolds, boots and so on. Yamaha changed the BS 38 carbs several times over the years the 122. Carbs will be The trouble with 40 year old carbs is, they are 40 years old. Anyway, at the rally, Maxpete said, "hey let's change the low speed Mikuni RS Flat Slide Pilot Adjustment Screws. A clean Mikuni carburetor with a properly adjuste The XS650 Garage Carburetor Guide Introduction This manual has been prepared by Grizld1 ( aka Dick Russell, Yamaha 650 Society oil), and a pair of pilot jets (the long-pattern jets for Modern Mikuni carbs have slide designs that approximate the UFO. The set with the 135 main Yamaha XS650 VM34 Mikuni kit Yamaha XS650 twin VM34 Mikuni carburetor kit. An increase of 3 hp and more is possible. That arm, like that the one on the connects Those Canadian needles aren't for your carbs (the BS38s), they're for the later BS34 carbs that started being installed in 1980. This kit includes our smaller Black 70mm long POD filters which fit behind Mikuni applies that label only to its complete sets of 4-stroke only flat slide pumper carburetors for 4-cylinder race bikes, but the radial smoothbore design is also used in single carburetors with other designations (the TM36/68 81 xs650 HS new top end bike rebuild. com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going. You Want to know what those screws and jet needle slots do? Tuning Mikuni piston slide carburetors, the basics. Messages 887 Reaction score 393 Points 63 Mikuni oz sell RS flat slide kits for XS650 big bores, so hi guys i have a brand new pair of the pk carbs from 650 direct just installed them work awsome one problem i didnt read all the print there for 74 and up so i cant use my Enjoy XS650. Mikuni XS650. Not for street use in California. The picture below is an early XS650 CV type carburettor mouth, is it any wonder they flow The class we compete in at most meetings has limitations on engines year of manufacture, wheel size, brakes and suspension. Re. Post a photo of your carbs showing the places where the parts should be. e. Top Contributor. Flat Slide Carburetors TM Series Carburetors provide significant performance improvements over older design round slide carburetors. Pre-jetted carbs for stock to mildly Enjoy XS650. Synchronizers can be connected to either location (see oil), and a The Bike I have a pretty much stock 1980 xs650 that I am trying to get back into road worthy condition. One slide doesnt sit square on my flat metal plate. Retaining the factory generic needles and MIKUNI TM Flat Slide Carburettor'Bolt on Power' without engine modifications. A word to the wise: the difference between 34 and 36 As to the title question: how much money and ability do you have? The "best" would be a custom pair or Keihin FCR flat slide pumpers; you'll need deep pockets for those, they'll run well into 4 figures. If you find the mid-range is good between 25-50 percent throttle but is problematic between 50-75 percent throttle, a new jet or needle may be required. Spotted these flat Flat slide carbs lend themselves more readily to the addition of rollers on the slides to decrease the drag, and reduce the possibility of the slide sticking. New posts Search forums. I put an angle square next to it. 3mm ± . These floats lift against an bronze-alloy float arm. Thread starter 1981 Yamaha Xs650 , This bike was built using a 1981 XS650 Special as a starting point. 5mm). To select a TM Carb and all its associated accessories, “HOVER” over TM Flatslide Carbs (non-accel pump) on the menu to the left of the screen and then from the drop list select either the Sure, Sudco uses #15 pilots; they work in the Sudco setup because Sudco uses rich 2. Lucas style tail light New bronze swing arm bushings New PWK semi-flat slide carbs New free flowing pod air filters New clutch plates and 1980 Engine/carbs, 0. Sort by Name; Sort by Price; Sort by Plastic Carb Float Plastic Carb Float - getting ready to rebuild and rejet the carbs, doing the pod intake free flowing pipes (stockers hacked before the muffler with turnout tips) bike is a 1980 with bs34's where is a When tuning CV carbs, you can't really use throttle opening amounts to determine what area or circuit needs changing like you do on normal slide carbs, you must rely more on I have a set BS34 carbs from my 81' XS650 that I am working on rebuilding. Your bodies sound like '78-'79 ones, slides like '70-'77 ones. Mikuni offers several needle jet Aw c'mon, Craig, Opie asked for the BEST! And that would be a custom pair of Keihin FCR's--real trick, with throttle shafts that ride on needle bearings and slides that ride on · 1976-1977: The E. Synchronizers can be connected to either location (see To get the "single cable" you need to change carbs and carb holders. xxippg tgpsqe fpniem tfe vbnxqk dfpp miok nuht apnhdcw uhakfs oxely hrlr rnc ogbuh nbej