Goldnboy 959 #1 Posted July 20, 2020 I have a recently rebuilt K321 and have had the points foul on me. Although it sits outside, and had 3.5" of rain recently, it is installed on a tractor and the points cover has a new gasket and grommet. What else can I look for the cause of points fouling? I had to lightly file the points to get it to fire. However this tractor sits outside and this doesn't normally happen. Carb seems adjusted correctly, coil has proper resistance. Share this post Link to post Share on other sites
WHX?? 49,579 #2 Posted July 20, 2020 Try replacing the condensor. If that is bad it can cause the points to arc more than they should. 2 Share this post Link to post Share on other sites
lynnmor 7,441 #3 Posted July 20, 2020 If you actually see signs of water and sources from outside are OK, there is a chance that the engine oil contains condensation or rain water. Water vapor in the crankcase can migrate up into the points area and condense there. When you change the oil, look for a milky appearance and let it settle for a few days to see if there is a bit of water on the bottom. 1 Share this post Link to post Share on other sites
Pullstart 63,269 #4 Posted July 20, 2020 It may be a good idea to confirm you have the right coil. A coil designed for an external resistor will burn so hot it can foul points in a quick hurry. That’s just something I’ve learned by sticking around here... 2 Share this post Link to post Share on other sites
WHX?? 49,579 #5 Posted July 21, 2020 I have seen some coils that are labeled external resistor required. Share this post Link to post Share on other sites
Goldnboy 959 #6 Posted August 2, 2020 Update > had to mow the yard so I dragged the tractor into the garage for a more thorough exam. Began with fuel filter and couldn't blow throw by mouth. Then turned on gas a slow trickle that explained lack of fuel and choke to run under no load. Ended up being crud in peacock (mine has no built in screen) blew it open with air compressor and drained tank (of course it was full). Pulled the peacock and then cleaned tank, reassembled with new fuel filter and Kohler was ready to work! 2 Share this post Link to post Share on other sites
tunahead72 2,459 #7 Posted August 2, 2020 That's great to hear. I've just started pulling my C-105 fuel system apart to rebuild it, so I'll be going through some of the same steps you just did. If you continue to have problems, you may consider replacing all the fuel lines too. I'm curious, what kind of tractor is this K321 in, and is the points fouling still an issue? Share this post Link to post Share on other sites
Goldnboy 959 #8 Posted August 2, 2020 1 hour ago, tunahead72 said: That's great to hear. I've just started pulling my C-105 fuel system apart to rebuild it, so I'll be going through some of the same steps you just did. If you continue to have problems, you may consider replacing all the fuel lines too. I'm curious, what kind of tractor is this K321 in, and is the points fouling still an issue? Its a fresh repower for a B80-8 with custom dual hydraulics 2 Share this post Link to post Share on other sites
bc.gold 3,403 #9 Posted August 2, 2020 On 7/20/2020 at 9:18 AM, WHX24 said: Try replacing the condensor. If that is bad it can cause the points to arc more than they should. Right on the money, full article here. Share this post Link to post Share on other sites
