dwade277 1 #1 Posted March 5, 2019 Hi all, have not been here in about 5 years. My B-80 dies after running 15min then won't start? She looses power and I have to play with the choke, sometimes I can get 20 min but always ends the same. She dies and won't start till she cools down. Then I can get her going again then she will loose power over the next 10 min then die again. When she is running she seems to miss a bit, not as smooth as I would like. I dont think its the carb. Maybe the voltage regulator is going? Any help would be much appreciated. Share this post Link to post Share on other sites
daveoman1966 3,841 #2 Posted March 5, 2019 Put on a new condensor...about 5 bux. 2 Share this post Link to post Share on other sites
953 nut 60,098 #3 Posted March 5, 2019 6 minutes ago, dwade277 said: Maybe the voltage regulator is going? The voltage regulator has nothing to do with the engine running, just charging the battery. If the vent in your fuel cap is plugged the fuel pump will have a hard time working properly. Try backing off the cap a half turn and see if that helps Share this post Link to post Share on other sites
dwade277 1 #4 Posted March 5, 2019 Thank! What does the condenser do? Where can I get one for the K-181 engine? Share this post Link to post Share on other sites
dwade277 1 #5 Posted March 5, 2019 1 minute ago, 953 nut said: The voltage regulator has nothing to do with the engine running, just charging the battery. If the vent in your fuel cap is plugged the fuel pump will have a hard time working properly. Try backing off the cap a half turn and see if that helps ok thanks. Ive checked the fuel cap and its venting properly. 1 Share this post Link to post Share on other sites
953 nut 60,098 #6 Posted March 5, 2019 The condenser is a part of your ignition system and protects the ignition points from excessive arcing. To check the condenser all you need to do is remove the wire that connects it to the coil and see if that resolves the problem (you can do this for testing but not as a long term fix). Share this post Link to post Share on other sites
953 nut 60,098 #8 Posted March 5, 2019 The condenser is the little silver cylinder to the right of the ignition coil. Share this post Link to post Share on other sites
wallfish 18,149 #9 Posted March 5, 2019 Just making sure to ID it for him 1 Share this post Link to post Share on other sites
stevasaurus 23,281 #10 Posted March 6, 2019 Your symptoms also suggest a bad coil. Do the points 1st. If you have another horse, try switching the coils. Share this post Link to post Share on other sites
dwade277 1 #11 Posted March 6, 2019 50 minutes ago, stevasaurus said: Your symptoms also suggest a bad coil. Do the points 1st. If you have another horse, try switching the coils. Yes, Thanks. I do have another B- 80 to pull parts from. will check ASAP. Thanks you! Share this post Link to post Share on other sites
edgro 680 #12 Posted March 6, 2019 I had a tractor do something similar, turned out to be the screen on the fuel valve in the tank was plugged. Installed a new fitting without a screen, and an inline filter instead. 1 Share this post Link to post Share on other sites
