This is a two-stroke. Period. HPI previously said, images show, 2-stroke.
Please don't perpetuate Internet falsities.
► Please do not PM (privately message) me or directly address forum threads towards me with questions that can be answered by the rest of the URC community. Most questions asked of me directly can be answered sooner & better by the URC community.
Due to circumstances beyond my control, I can only respond to important urgent, business-related, or security-related private messages. I cannot give personal diagnostic or product advice via PM. Please utilize the tremendous resource that is the entire URC community. Thank you for your understanding.