Would appreciate help from anyone who knows...
My old but reliable HRM215 K4SDA was damaged when a stick somehow jammed under the carb. It bent the choke wire and part of the steel stamping. After straightening everything out, it starts and runs fine again. Two questions:
1. Slightly higher speed/power would sometimes be helpful, if it won't blow up the engine. I can't find an obvious adjustment for this. Do I just stiffen the spring to the governor a bit, or are there high-speed throttle and/or mixture screws? Or is this a factory pre-set that should be left alone?
2, There's an important-looking screw on the block side of the carb. It has a pointer on one edge, and only moves about 1/8 turn. It looks like the one labeled "22" in the attached diagram (for a different model, from boats.com). Unfortunately, the part names on that page end at #21. Turning it doesn't seem to have any effect at any engine speed. Could someone here please describe its function?
Thanks for all help - the budget requires that I keep this mower working for a long time!
-Chelydra
My old but reliable HRM215 K4SDA was damaged when a stick somehow jammed under the carb. It bent the choke wire and part of the steel stamping. After straightening everything out, it starts and runs fine again. Two questions:
1. Slightly higher speed/power would sometimes be helpful, if it won't blow up the engine. I can't find an obvious adjustment for this. Do I just stiffen the spring to the governor a bit, or are there high-speed throttle and/or mixture screws? Or is this a factory pre-set that should be left alone?
2, There's an important-looking screw on the block side of the carb. It has a pointer on one edge, and only moves about 1/8 turn. It looks like the one labeled "22" in the attached diagram (for a different model, from boats.com). Unfortunately, the part names on that page end at #21. Turning it doesn't seem to have any effect at any engine speed. Could someone here please describe its function?
Thanks for all help - the budget requires that I keep this mower working for a long time!
-Chelydra
Attachments
Last edited: