Question about 1980 Yamaha XS 400 Special
It sounds like you have a carburetor float that is stuck in the down position flooding the cylinder with gas. Start by removing the carburetors and giving them a thorough cleaning . Closely inspect the sides and tips of the float needles.If they show wear or damage replace them. If you have black plastic floats , test that they float in a cup of gas and do not sink . If the float sinks replace it. Ethanol fuel will saturate black plastic floats over time causing them to sink. Change your plug , it is probably wet fouled from the gas and check the new plug for spark. Also check that your crankcase has not filled with gas during the flooding. That is why you should always turn your gas off when not riding so if a float sticks you do not ruin your oil. If gas has fouled your oil, change your oil.
Posted on Sep 12, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Sep 23, 2014 | Garden
Aug 02, 2014 | Stihl Garden
Jun 29, 2014 | 2007 Toyota Camry
Jun 28, 2012 | Craftsman Garden
Oct 18, 2011 | Poulan Wild Thing 2375 18" Gas Chain Saw...
Jul 23, 2010 | 1982 Yamaha XS 400 Special
Oct 19, 2009 | Craftsman 17.5 hp 42 in. Deck Lawn Tractor...
Aug 03, 2009 | Briggs & Stratton Garden
305 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: