Hello! This is my first post so i'm not too sure what information is needed to get the help I want, but I've owned a 2005 500R for 2-3 years.
When I bought it I was able to drive it from Dallas to Stillwater every other weekend and I wasn't too mechanically inclined to work on it or maintain it as needed so from the beginning it always ran fine, but I remember having lots of problems starting it. I finally bought a 79 Camaro and got sidetracked getting into cars and training myself to become a mechanic for about a year. I finally got my Motorcycle license yesterday <<<LOL
... So i've been determined to start riding it again, I had left it with my mom and it slowly got more and more problems over time and finally stopped being able to start.
After charging the battery for 12 hours, the motor started to crank but when it finally started it would run for literally a second and have a very very loud backfire.
So today I started working on the bike and started taking everything apart. I got the carbs off, I got the airbox off, I slowly figured out what every single hose and piece does around the engine, I checked the spark plugs, I tested for spark, I cleaned what I could at the time. I completely disassembled the carbs from watching a million Youtube videos. (Was extremely dirty from old fuel) I cleaned it to the best of my ability while carefully trying not to ruin any rubber or brass fittings and I continued to clean every single part I touched and put everything back together. I figured out it backfired from igniting a large amount of fuel after trying to spark a VERY VERY Dirty spark plug... after cleaning everything it started almost immediately and now I'm just trying to get it to idle...
WHAT I FOUND:
- The spark plugs were extremely dirty with large buildup, and the left side was wet (maybe from flooding the engine trying to start) but they seemed usable so I cleaned them with sandpaper and clean towels and I semi tried to gap them to .024-.028 inches. But I kinda eyeballed it b/c my gap tool was too big.
- I notice some white/grey dirt (carbon deposit?) inside the right intake manifold so I did my best to clean it without letting it fall in (some probably did)
- I have not changed the oil yet (Don't hate me) and I did notice, even when tilting the bike, I never saw the top of the oil level. (Could this mean fuel got in the oil, causing it to rise? How can I check)
- When running at first it would idle extremely rough and at 3500-4000 rpm so we let it run for a while hoping it would clear a bit and the white smoke would slowly go away (it kinda did.)
PROBLEMS RIGHT NOW:
When you start the engine it revs extremely high and if you give it any gas it dies. and if you mess with black throttle screw (come back to this later) it is highly effected.. I tried to sync it with the choke, which I now think is a bad idea.
Are you supposed to completely seat the main and pilot jet inside the float bowls? The small brass screw (Pilot Screw
) was in a very deep hole (is that supposed to be like that)((YouTube videos show the screw near the top of the opening.))
How many turns should I adjust my black plastic throttle screw and small ((High Throttle screw
)) I didn't know until 5 minutes ago the black plastic screw is only the throttle adjustment and I thought THAT was the idle screw, which it kinda was, but I was trying to get it to lower the rpms to a point that I could finally take off the choke and run it smoothly, but when I finally got to a point, it needed the choke to run and when i pulled the throttle it would want to die. Is this because its too rich?? (Could the jets in float bowls need to be unscrewed a couple turns or do I understand that incorrectly??) ((I finally understand my actual idle screw is covered but could this really be the problem if everything is freshly cleaned))
Based on what you read, does it sound like i'm running rich? I had taken the spark plugs out again and once again the were really dirty but this time with a dry matte black soot. There is still a small amount of white smoke and the smell of gas coming from the exhaust but I still cant get it to idle properly and accelerate without wanting to die. So what can I do. I know it has to be some type of carb adjustment maybe a sync of some sort but can anyone here give me some direction?
I understand this post was very long but I'm so so disappointed I couldn't figure it out on my own in less than a day. Any help is greatly appreciated!!!