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79' SPECIAL
After a long time of waiting and procrastinating, I had finally put the new valve cover gasket on after checking if my Cam chain had slipped off the sprocket, been out of time, or bent valves. Everything checked out okay (some valve clearances were a little off but i plan on fixing all of that later). Before, (after cleaning my carbs thoroughly, and setting my float heights to stock) my bike would run, but die when given gas. Sometimes it would run at a high idle at start up, and as it got warmer i would have to keep dropping the idle set screw to keep it from idling too high.
After that, I opened up the carbs yet again, replaced the float valve assemblies (from Yamaha dealer even though they turned out to be not genuine Mikuni parts, giving me a lower float level/higher turned right side up)(I know everyone says they wont run right with these but there is no change from before), checked my coil voltage output, checked my vacuum advance wires/lines, and every ground/electrical connection on the bike. Replaced the exhaust with an identical set, without any holes/cracks.
My battery is dead, so I kick start it to get her going. Runs, smooth idle, but same issues. At first, it bogged with throttle, but when warmed up and after turning the idle screw in (higher RPMS), things change. When I give it gas, it stays in the higher RPMS for a few seconds, then drops, instead of returning to lower RPMS right away. Ride-able, but things aren't right at all. Also, smokes a decent bit out of the left exhaust muffler in and out, barely any out of the right side.
First things I am going to try - New battery (what kind? models? Specs?) Readjusting float heights to spec ( I assume its getting too much fuel, due to long lasting rev)- Balancing carbs and adjusting mix screws
Keep in mind, all of this happened after that huge rain storm I rode home in (with pod filters on/stock airbox has been put on ever since). Was hoping these new valve assemblies would fix everything, but NOPE.
After a long time of waiting and procrastinating, I had finally put the new valve cover gasket on after checking if my Cam chain had slipped off the sprocket, been out of time, or bent valves. Everything checked out okay (some valve clearances were a little off but i plan on fixing all of that later). Before, (after cleaning my carbs thoroughly, and setting my float heights to stock) my bike would run, but die when given gas. Sometimes it would run at a high idle at start up, and as it got warmer i would have to keep dropping the idle set screw to keep it from idling too high.
After that, I opened up the carbs yet again, replaced the float valve assemblies (from Yamaha dealer even though they turned out to be not genuine Mikuni parts, giving me a lower float level/higher turned right side up)(I know everyone says they wont run right with these but there is no change from before), checked my coil voltage output, checked my vacuum advance wires/lines, and every ground/electrical connection on the bike. Replaced the exhaust with an identical set, without any holes/cracks.
My battery is dead, so I kick start it to get her going. Runs, smooth idle, but same issues. At first, it bogged with throttle, but when warmed up and after turning the idle screw in (higher RPMS), things change. When I give it gas, it stays in the higher RPMS for a few seconds, then drops, instead of returning to lower RPMS right away. Ride-able, but things aren't right at all. Also, smokes a decent bit out of the left exhaust muffler in and out, barely any out of the right side.
First things I am going to try - New battery (what kind? models? Specs?) Readjusting float heights to spec ( I assume its getting too much fuel, due to long lasting rev)- Balancing carbs and adjusting mix screws
Keep in mind, all of this happened after that huge rain storm I rode home in (with pod filters on/stock airbox has been put on ever since). Was hoping these new valve assemblies would fix everything, but NOPE.
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