Recent content by nsnd

I gave it a shot, but the throttle stays completely open (see my picture labeled: Top View - Operator Side). I have to forcefully work against the spring (close the throttle) to get it running better (stop running rich and increase RPM's). Since I previously messed up the governor, I followed...

Lawn needed to be mowed today, so I decided to take the mower for a spin. I realized it wasn't running normal RPM's (so my tach is definitely off; @Richard320 :-D). I noticed there was very little air movement from the blade, which is in good shape. I fixed the throttle open by removing the...

I notice the throttle is almost always completely open, even during a cold startup. When force the throttle closed, the RPM's increase (which seems counterintuitive to me...) and it starts to run smoother, but still seems to have the rich running appearance. Top View - Operator Side Side View...

Ripped it apart again and put the other spring in; RPM's back to normal-ish. Also, swapped another new diaphragm with the same results. I took slowmo video and focused on the exhaust and blade (just in case).

Ah perfect. I did follow that procedure; luckily, it was also in the manual you shared with me.

Look's like the typo's might have gotten you. Based on the engine code, I assumed this was for a riding lawn mower. I was able to find a parts list and user manual for 31C707-3346-G5...

I wasn't able to find the service bulletin to install and tighten the carb to the tank, but was able to complete the other items you recommended. Previously, I had used "Slipper's Trick" from the how-to video, but for this purpose, I removed the second paper gasket that would have touched the...

At this point, is it worth just swapping out the entire carburetor?

I forgot to address the air filter in my reply. It's a brand new air filter. When I pull off the air filter completely, the engine revs up a little but continues in the same fashion with the black smoke. I only ran it this way for about 60 seconds.

So here's an updated video on how it's running, real rough, and looks like black smoke from the exhaust. I pulled the sparkplug after about 5 minutes of resting, and it looks a little wet and smells like gas. Not sure if there's oil on the plug or not. When I cleaned the main jet, I did not use...

Bellcrank, Thank you for those videos. I believe I saw the first one (don't), but never watched the second one (do), at least not in it's entirety. Other videos referenced cleaning the main jet, but I never saw how they removed it. After watching that video, I was able to check that, while I...

Received the new governor spring (B&S 698719) and linkage (B&S 698835) and installed them. I definitely mutated the linkage and the spring was also worn (see image below). Now I'm have trouble getting the mower to even start. I poured few drops of gas in the carb, and it will fire right up, but...

That was the callout on the tach I bought. I have the tach set for a single cylinder-four stroke engine, but that could still be an issue I need to address. I felt that when I initially took my carb off, I may have bent the governor linkage and have since tried to reset it. Not only that, but...

I purchased a tachometer and hooked it up. It appears the engine is running fast. When I check Table 1 (Section 5, pg. 28) for a 21" inch lawn mower blade, I should be running 3,250 RPMs. However, I'm getting a much higher number on my tachometer, generally from 5,500 to 6,000 RPMs before it...

Thanks for the reply and the manual! I confirmed the diaphragm was installed on tank and the gasket on top (against the carb). I'll see if I can get my hands on a tach and refer to the manual you attached.

First time poster, but I found your community while trying to fix a 10-year old Craftsman mower with a Briggs and Stratton 10L802-0858-F1 motor. For the past 2 years, it was used by renters, but I have since moved back to my home and started using it again. At first it didn't start, but I...