GOOD NEWS. . . . The PICTURE UPLOAD FUNCTION IS WORKING !!! The tech folks at the parent company have been able to remedy the issue. You can upload pictures once again. Thank you for your patience.
Not familiar with the 9.8 4 stroke motors... do they share any major components (block, crank, rods, etc) as any of the slightly larger 9.9 motors? Are they the same as the 8HP motors or any others?
As always, the motors are made in families. The 2.5 and 3.5 are identical except for the carb. Same for the 4/5/6. Also the 8/9.8. Only difference is the carb. Depending on version, the 9.9 and 15 are similar as well. The new 9.9/15/20e are identical except for flow restrictor and ECU.