YAMAHA F30-F40 Extension Kit #806-#806A

BAY Mfg outboard shaft lenght extension solution:

With a simple modification, we can convert the short shaft engine into a long shaft one, so that the factory parts do not have to be replaced.

Kit #806 or #806A can be used on YAMAHA  (25) F30 F40 (50) 2-4 stroke, 3 cylinder outboards

• Each Yamaha Outboard Extension Kits includes a 5″ housing, stub driveshaft, water tube, shift shaft, and all the studs, nuts, etc. that are needed to make the outboard motor conversion.
• Yamaha Extension Kits include stainless steel shafts and studs, and spacer housings are cast of the same series alloy as used in the motors for lifetime performance
• At YAMAHA F30 series there are two different shift shaft part, and method, have to check by the serial numbers, or with phisical check!
  • #806 Kit contains threaded shift shaft part  (thread is on the end to contact the main shift shaft)
  • #806A Kit contains splined (7 spline on the rod) shift shaft (splined connection to the main shift shaft)

Compatibility should always be checked!

• Made in USA product
• The BAYMfg Extension kit is made of aluminum alloy with the same strength as the factory alloy, with a standard 5″ height, which is exactly the addition for S and L size engines. (also in the case of L and XL)
• Factory raw aluminum surface!
• With optional painting in the factory YAMAHA color in 4 steps (Zinc primer , Filling spreading primer, Bluish gray metallic 2 colors, Topcoat)
• The mainshaft extension is made of high-quality stainless steel with grooves corresponding to the manufacturer.
• The water cooling system is spliced with premium quality copper pipe with the appropriate specific flange
• The splicing of the direction changer is a unique stainless steel element
• The screws, pins and insulation are all product-specific stainless steel elements
• During installation, it is always recommended to use the factory lubricants (shaft fitting, fixing screws
• The warranty is only valid in the event of installation by a professional, specialist service or distributor!
• The conversion can be restored at any time and does not cause any damage or problems to the outboard motor, i.e. it can be advertised as either short or long boots during the sale!