#79 yamaha xs650 carburetor diagram how to#
It appears as though I'm running a bit lean and I'm not entirely sure how to adjust the carbs. XS650 Addict Messages 363 Reaction score 722 Points 93 Location Sodus, New York #1 I'm looking for a good source of information and possibly a troubleshooting guide for bs38 carbs as well as just how to tune the carbs.You must use BS34CV diaphragms ( 73 mm OD) if your bike was made in 1980 till end of production. Does NOT fit the carbs used from 1980 on. These are CV* ( constant velocity ) carbs used from 1970 till 1980. Honda Motorcycle 1983 OEM Parts Diagram For Carburetor | carburetor xl100s partzilla 1983.N ew carburetor diaphragms for the MIKUNI BS38 CV * Carburetor used on Yamaha 650 vertical twins. mikuni bs38 carburetor yamaha exploded xs650 1979. Designed for use with Kawasaki FR/FS/FX/FH/FT Series. Oil Drain Hose Benefits: High temperature, heavy duty braided rubber hose designed for durability and longevity.
Step by step Instructions on how to clean your.Disassembly, cleaning and reassembly of Mikuni BS38 Constant Velocity Carburetors Help eliminate oil spills on the floor or engine by installing the Kawasaki oil drain hose on your engine today. Made way aircraft quality rubber so they will last. This pair of Yamaha TX or xs 650 carburetor diaphragms fits Mikuni BS38 CV constant velocity carbs. If I am looking at it correctly then I am missing parts 5 through 10 on the diagram.6 bleed holes OEM CV type carbs (BS) available in the following sizes 30, 32.5, 35, 37.5, 40, 42.5, 45, 47.5, 50, 52.5, 55, 57.5, 60 Mikuni N151.067 Pilot Jet £5.20 each OEM non bleed available in the following sizes 30, 32.5, 35, 37.5, 40, 42.5, 45, 47.5, 50, 52.5, 55, 57.5, 60 Mikuni VM28/486 pilot jet £5.20 each 2.0mm diameter bleed tubeJBM Industries is making these Carburetor Diaphragms for Mikuni BS38, BS36, and BS34 CV constant velocity carburetors. I have attached a picture of what came out of both carbs, and the carb diagram. Looking at the diagram it appears that most of the slide and needle valve parts are missing. CUB CADET KH-32-853-67-S Kohler Carburetor RZT XT1 XT2 42 S LX42 LT46 L42 KT725 Product Description & Features: Genuine OEM CUB CADET Part Number…. 42 Cadet Carburetor Cub KH-32-853-67-S Kohler KT725 L42 LT46 LX42 Nikki Carburetor Parts RZT S XT1 XT2. The '76-'77 set would be my 2nd choice in BS38s.Yamaha XS500 TX XS 500 B-D Twin 6 Sigma Custom Carburetor Carb Stage 1-3 Jet Kit.
No need for custom ground XSJohn needles in these carbs.
#79 yamaha xs650 carburetor diagram plus#
Another plus with the rich midrange is that the cylinder temps run near equal. I was seeing 4 or 5 MPG better with this set compared to the newer one. With the smaller mains, you will get better mileage.
The midrange is great because of the rich Z-8 needle jet and the top end doesn't suffer much at all even though the mains are much smaller than the newer set. Don't get me wrong, it was perfectly acceptable, just not quite as good as the newer set. It's a wonderful carb set but I found it didn't idle quite as nicely or start as instantly or easily. You may have read that the '76-'77 carb set is best because it was the last pre-E.P.A. style mix screw and spring loaded needle meter fuel better through the idle and midrange circuits. The '78-'79 carb set does compared to the earlier 38s. In order for the engine to emit less pollutants, the carbs need to meter fuel more precisely. The mix screw as well as the slide were redesigned. Yours is the last and most modern of the BS38s. As the carb sets got newer, they were more refined. I feel you have about the best set of 38s.
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