Bailey 0 Posted August 15, 2010 After about 45 mins of mowing with the 3410s and it suddenly developed a sputter or miss. Also, you could hear it having to work when mowing uphill where it hadn't struggled just moments before. After a few minutes it acted like it was going to stall. I hit neutral, turned off pto and dropped the throttle and it finally settled into a smooth idle. Continued to mow, with the sputter, as a quick once over revealed nothing obvious. Half hour later, stalls again, this time completely. Restarted with a small puff of black smoke, finished the job and parked it. Next day will start and idle, but can only give it throttle if the choke's half out..... I'd think it was something in the carb, but it was rebuilt this winter and has a new filter in place. Any other idea's ??? After pulling and cleaning the main, I fired 'er up and mowed the barn yard tonight, which is the tallest thickest grass I've got. She ran like a champ..... with the shuttle in third gear. Still not sure what was up, but so far so good. Share this post Link to post Share on other sites
goatfarmer 817 Posted August 15, 2010 My 3410 would start hard, and start missing and chugging when you advanced the throttle. Changed the points and condenser, solved the problem. Share this post Link to post Share on other sites
Bailey 0 Posted August 15, 2010 It actually starts right up easy ..... though it would be a good thought, but it's got one of those little do-dads ..... no points/condensor. Thanks for the suggestion though.... Share this post Link to post Share on other sites
Simplicity314 0 Posted August 15, 2010 Change your spark plug. If no improvement, try readjusting the carb. The vibration of the machine sometimes causes the adjustment screws to work in or out. Share this post Link to post Share on other sites
Oz 1 Posted August 15, 2010 Just a thought, but could there be any water in the gas? Oz Share this post Link to post Share on other sites
Bailey 0 Posted August 16, 2010 I'm guessing it's not the gas ....it get's regular use and I'm at the bottom of this particular 5 gallon can. The tractor's not seen rain in the 2 yrs I've owned it ...... I'm gonna pull the main from the carb and maybe the tube. If that doesn't work, I'll swap the plug. Let you know in about an hour ...... Share this post Link to post Share on other sites
Bailey 0 Posted August 16, 2010 Well, I won't know for sure until I try to mow again ..... but, I pulled the main needle and let the bowl drain cleaned and re-set the needle. Started right up and ran perfectly fine. Can't imagine what might have been in there, new filter and carb rebuild. Oh well, hopefully it's that simple ............ Share this post Link to post Share on other sites
BLT 708 Posted August 17, 2010 When it happens again, check the fuel line for flow, the fuel tank might be have debris in it. I have had that happen to me. Share this post Link to post Share on other sites
Bailey 0 Posted August 17, 2010 Come on Bob .... what do you mean by "when"? don't you mean "if"? :D Seriously though, you're probably right on the "when". I didn't find anything really wrong, so it's bound to reoccur. The fuel filter was full the whole time, so I don't think it's flow from the tank that's the issue. But, to your point, could be something beyond the filter, blocking fuel at the float valve..... Share this post Link to post Share on other sites
Brettw 1,015 Posted August 17, 2010 Nitrous Oxide. It pretty much fixes anything...... for a few seconds.....:D Share this post Link to post Share on other sites
Ronald Hribar 70 Posted August 18, 2010 could be float valve sticking Share this post Link to post Share on other sites