Maine Red Horse 5 #1 Posted 4 hours ago My new to me c125 won’t stay running. When snow blowing a month ago it started to loose power and would barely throw snow. It died in the drive way and had sat for a few weeks. I then replaced the carburetor, oil, points, starter and spark plug with now success. It will start to chug very slowly and run for a few seconds with the throttle fully open and the choke half on. It then dies out and back fires about 25% of the time. With the air filter off I can see a bit of fuel sputter out the front of the carb. I feel like I’m over my head now and have hit a wall. Can anyone recommend a good mechanic in sothern Maine who would work on this for me? 1 Share this post Link to post Share on other sites
SylvanLakeWH 30,547 #2 Posted 3 hours ago First things first... Is it getting fuel? Check the gas cap. It needs to vent. Try starting it with cap off. Is there a fuel filter? If yes, check it for crap... I'd replace entire fuel line and put new fuel filter in. Take fuel line off carb and try starting it. Is fuel spurting out? If yes, good. If not - fuel isn't getting to carb. Could be blocked fuel line, pump, or clogged petcock valve screen. 1 Share this post Link to post Share on other sites
ri702bill 11,230 #3 Posted 3 hours ago Welcome! This sounds fuel related, as in lack of fuel. Try backing off the gas tank cap. If the vent is plugged, you get that symptom.. 1 Share this post Link to post Share on other sites
ebinmaine 77,249 #4 Posted 3 hours ago 28 minutes ago, Maine Red Horse said: Can anyone recommend a good mechanic in sothern Maine who would work on this for me? Bring it Rick n Ray's in Buxton. Hands down - the best around. 2 Share this post Link to post Share on other sites
ri702bill 11,230 #5 Posted 3 hours ago 1 minute ago, SylvanLakeWH said: Take fuel line off carb and try starting it. Is fuel spurting out? If yes, good. If not - fuel isn't getting to carb. Could be blocked fuel line, pump, or clogged petcock valve screen. Fuel pump - there are two spring loaded discs inside. If one or both are not sealing, the fuel just waffles back and forth. Rare, but it happens. As mentioned, pull the line to the carb, pull he coil wire and crank it over. Fuel should spurt once each revolution.... 2 Share this post Link to post Share on other sites
Maine Red Horse 5 #6 Posted 3 hours ago When I pull the fuel line off the carb and turn the key it pumps out plenty of fuel. 2 Share this post Link to post Share on other sites
squonk 45,450 #7 Posted 2 hours ago When you crank it over, does it sound normal or does it sound like it's spinning a lot faster? Share this post Link to post Share on other sites
rmaynard 16,849 #8 Posted 2 hours ago 1 hour ago, Maine Red Horse said: With the air filter off I can see a bit of fuel sputter out the front of the carb. That sound to me like it is flooded. A stuck float valve will cause that. Where did you get the carburetor that you used to replaced the first one? 1 Share this post Link to post Share on other sites
