Looking for a df150 torque curve

[Louisljc]

Hi there could someone plz head me in a direction to find a torque curve for a df150 any suggestion will be appreciated. Can find a blooming thing on the net.

[Harper]

From the manufacturer's website, here's what they show for the new engines, and I don't think the graph has changed any over the years. http://www.suzukimarine.com/~/media/...20Brochure.pdf

I'm not sure how you intend to use this. The torque curve illustrated at the above link doesn't give specific RPMs, just a "low-mid-high" RPM graph.