Re: 100:1 Mix
If the needle/pin bearing on the crank journal failed like mine did on an engine it will cause the problems you have, mine failed and a piece of the bearing broke off and made it to the top of the piston , it bounced around up ther efor a bit and then hung betwen the piston and the transfer port and the rest is history as was that jug, piston, crank & rod.
my engine had about 30 miles on it when that happened, I may be to blame for running it 4-5 miles WOT on a 70:1 mix that WAS NOT Opti 2 and probably should have been mixed @ 32 or 40:1, new tight engine NOT enough lube, WOT several MILES, receipe for disaster on mine......completely rebuilt it and got 420 miles out of it before another lower end issue put it on the shelf.
I have another engine running on the same mix of OPTI 2 runs like a scalded ape and has 1180 miles on itstill runs like a new engine after break in.
No matter the dealer or so called engine brand we still roll the dice on these things IMHO...
I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!