- Www.mikunipower.com › RebuildKitsMikuni Genuine Carburetor & Fuel Pump Rebuild Kits - Mikuni Power
- Mikuni Bs38 Exploded View
- Cached
FIG 1
* pilot circuit
* throttle valve
* needle jet and jet needle
* main jet
* choke circuit
![Power Power](https://www.xs650shop.de/media/image/54/0f/31/BS38DUyp0g4CnRZ5o.jpg)
FIG 2
FIG 3
FIG 4
FIG 5
Www.mikunipower.com › RebuildKitsMikuni Genuine Carburetor & Fuel Pump Rebuild Kits - Mikuni Power
FIG 6
Carburetor Jetting Troubleshooting
FIG 7
Altitude, Humidy, and Air Temperature
Mikuni Bs38 Exploded View
FIG 8
Needle Jet/Jet Needle/Air Screw Correction Chart |
Correction factor |
1.04 or above |
1.04-1.00 |
1.00-0.96 |
0.96-0.92 |
0.92 or below |
Needle jet |
Two sizes larger |
One size larger |
Same size |
One size smaller |
Two sizes smaller |
Jet needle setting |
Lower clip position |
Same |
Same |
Same |
Raise clip one position |
Air screw opening |
One turn in |
1/2 turn in |
Same |
1/2 turn out |
One turn out |
FIG 9
This article was written by, and has been reprinted with the permission of Doug Jenks. All rights reserved.
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![Exploded Exploded](https://www.mikesxs.net/blog/web/app/uploads/Model_ID_Carbs_1.png)
- The kit fits the 1975-1979 XS650B, XS650C, XS650D, XS650E, XS650F “standards” as well as the 1974 TX650.
- — It does NOT fit the later model years such as the XS650S Special. See K&L 11-6239 for these later models. Additionally it does not fit the early XS-1 and XS-1B models.
- parts.wiki deems these to be sourced from the original equipment manufacturer to Yamaha, made by Arai Seisakusho Co, Ltd of Japan (ARS).
- Since these are original equipment replacements, they are designed for the stock Mikuni BS38 38mm CV carburetors.
- It is sold as a kit and includes the LEFT and RIGHT side manifolds as well as the two gaskets. It does not include new clamps to secure the carburetor.
- Affordably priced, exact replacement make this a parts.wikibuy for those who are restoring, building a cafe racer, brat, bobber or chopper.