20 Most Recent 2005 Yamaha Majesty 400 Questions & Answers

My Scooters starting to have the same exact as you described. Did you ever find a solution?

Inside the luggage compartment there are 2 plastic rivets. Push in the center button on both & remove them. Then grab the rear colored cover just at the turnsignals with your fingertails & pull straight back.

I have an 05 majesty .there are 4 allen head screws under seat pan you can adjust the seat forward and backwards by the screws. Now if you want to remove the entire seat and the pan you need to take off all the side fairings plus the cowling for the seat. Oh and the gas cowling, leg cowlings and you should then see the hinge for seat. I know it is a lot to do but that was how I had to do mine. So.. good luck

Be sure to check your fuses near your battery on your left side . If you need new ones go to auto parts store. You should get 10 and 20 amps and you will have a couple of extra ones in the fuses box on you bike by the battery. Good Luck

Hi I have a 05 majesty and it use to do the same. So have you changed your filters yet, have you checked your value clearance? In my case I needed to change uot my old filters some times they can be pricey but on ebay the are lower. Unless you good with hands you can always take it in to have the valves checked.oh look in to idle speed .GoodLuck.

First thing you should do is pull your spark plug and scrutinize it carefully. this can tell you a lot about how your engine is running and give you troubleshooting ideas of where to look from there. It may be a very simple fuel issue, it may be restriction of exhaust flow, or air intake, it may be an electrical problem. pull your plug and look closely. Start the engine, rev it a bit and allow it to warm up. Then shut it down and pull your plug after letting it cool a bit. Note whether it is fouled and full of carbon, if the electrodes appear to be bridged, is there excessive gap, does it appear to be soaked in fuel, does it look crusty and dry as though it's been baked? If all appears well, clean it up, readjust gap if necessary and re-install to proper torque specs. Then clean or replace your air filter if you haven't done so already. Disconnect your exhaust if you can and attempt to clean it out. if there is a lot of fouling and carbonization, this can restrict your exhaust which starves the engine of fresh oxygen to allow for proper combustion. finally, attempt to adjust the air screw on the carburator limiting your air intake (since it seems to be running lean / restricted fuel) Failing all that, disconnect your throttle cable from the carb, (the problem may be here)Take out your carb and thoroughly clean it, paying close attention to the jet nozzle and all orifices. Replace and try again. if this doesn't fix your problem, it is likely electrical. Start with the ignition coil and work backwards. Spark plug first, then ignition coil, then CDI and finally magneto/stator/generator. An ohm meter to check resistance and voltage will come in handy here. Hopefully it's simply a problem with restricted fuel. Electrical problems are a beast.

First, turn the petcock to the off position, if it doesn't have one. Remove the fuel tank, then find the fuel pump. If you are not sure what goes where, use a paint pen (different colors) to mark the hoses, take a picture after you mark all the hoses, if its electric, disconnect the battery FIRST!! Should be straight forward replacement.