Adjust the synchronization screw located between the linkage bodies until both gauge needles show identical vacuum pull at idle.
If you are storing your snowmobile or ATV for the season, the BDS26 service manual includes a storage protocol:
The gold standard for clogged passages. 3. Disassembly Procedure
Loosen clamp screws, disconnect throttle cables, choke cable, and fuel hoses. Remove the carburetor unit.
Unscrew the choke plunger assembly from the side of the carburetor body. Step 2: Top Cover and Vacuum Diaphragm
Yes, reputable brands like All Balls (part #26-1632) are widely used by the community. Feedback from users on both the Seca II and SRV250 indicates these kits fit perfectly and include everything needed to bring a BDS26 back to life.
provides a highly detailed, community-vetted guide for setting the float height specifically on the using both dry and wet methods.