I have a couple questions here my 149 has a shear bolt in the hole for the shear pin between the engine and driveshaft is this correct. I assume it’s a grade 5 there’s 3 slash marks on the head of the bolt. Also my 1650 won’t run at full throttle if I throttle it up it will run at maybe 1/4throttle for a couple seconds and back down to a little faster than idle. I had the throttle cable off and don’t know if that’s not back together right or if it’s in the governor. Thanks in advance