Okay Miya based on your Model # 94GG9003A and Serial # of 329228 it represents a later production model. I have had a Model # 94GG9003A and Serial # 267303 but as an earlier production number it had a maroon tank, maroon motor , maroon carb cover with a black metal carb knob. The rest was off-silver. I guess that is what happens when you build another 82,000 that can be also be used on other private label motors. Keep it original. Good luck. 😉
PS for instance the Hiawatha motors of the same 48-49 vintage/hp had off-silver motors , off-silver carb covers , and different carb knobs and all the rest like your motor down to the prop was off-silver.