The 3400 was 14.5 the 71 was +.75 lbs and 2 lbs for the 98cc . The big one has the 5400 crank and the 1" aluminum spacer. It adds up fast. What does the stihl 880 or the husqvarna 395 weigh.
88 is 122cc. So more on line with the 99cc heavy beast 2100. They way a ton.
You made a light weight 6ci