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YamahaWR450FMike

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About YamahaWR450FMike

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    TT Bronze Member

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  • Location
    Arizona
  • Interests
    riding my Yamaha's, computer, electronics and classic muscle cars

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  1. YamahaWR450FMike

    WR450F Bad Oil Leak

    A buddy of mine has a 2004 WR450F. We went riding today and just a few miles into our ride he had smoke and oil leaking everywhere. I towed the bike back to our home and couldn't find anything that could be leaking. But today I noticed up on the front of the cylinder head a little round hole near the exhaust. It looks like a cap of some sort has came out of this hole. Is that normal? Any ideas?
  2. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    Thanks for the info. I guess I should just pull the carb off and rebuild it and make it right. What a good rebuilt kit for this carb? The bike is a 2004 WR450F
  3. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    side plate where the throttle linkage is located?
  4. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    I'll have to try that. Hot start isn't stuck the the o-ring could be worn out. It does slide into the carb quite easily.
  5. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    I took the bike out on a ride this morning. Runs pretty good. I installed the new zip-ty fuel screw and that seemed to fix my not idling problem. Only problem now is when the motor is coming down from a mid or high rmps, the rpms slowly go down, not fast like I know it should. Revs up fast but doesn't come down to a idle fast. I have the fuel screw turned about 2 turns out. 1 1/2 turns it wants to die. So now I have to figure out this little problem. Any ideas? Thanks
  6. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    I ordered the Zip Ty fuel screw so when I get it, I'll pull the old fuel screw out I'll check it and see if the o-ring is on there. Can't remember when I pulled the carb apart last week.
  7. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    thanks for the advise. I will check that, though I did pull the plunger completely out of the carb and it was totally clean. Will check to make sure it's bottoming out all the way. Thanks
  8. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    Yes I removed everything off the carb that I could. Used brake cleaner and a air hose to blow out any junk inside the carb. It's weird how the bike runs. It's just slightly better than before I tore into the carb. With the choke on it runs and idles fine but the second you push in the choke the engine just dies immediately.
  9. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    yes checked all you mentioned except for spray test.
  10. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    got the carb cleaned and back on the bike tonight. Really not much difference. Still wants to die instantly after turning off the choke. I checked the intake boot for cracks but found none, so that is out of the question. It acts like there is a vacuum leak. Going to order a zip-ty fuel screw and see if that helps. I'd say the bike idles just a tiny bit better but still wants to die after turning off the choke. I cleaned the carb up really good but maybe there is something still stuck in it. The pilot jet was a mess and I got it pretty clean.
  11. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    thanks guys I'll give that a try.
  12. YamahaWR450FMike

    Need Carb Advise 2004 WR450

    I'm working on a buddies WR450F. He bought it used but runs very badly. This is what it does. During start up with the choke on, it revs very very high rpms and the exhaust header turns bright red. If the choke is turned off, it will not idle what so ever. I thought the engine is running very lean. I pulled the carb tonight and completely took it apart. It has a 170 main and a 50 pilot. Nothing seemed to be clogged with those two things. I'm going to use a air hose on the carb tomorrow. Anyone have any ideas what's causing these problems? I'd really appreciate any feedback. Thanks. Mike
  13. YamahaWR450FMike

    Why Yamaha

    awsome, I had a 1984 TT600 and had it for nearly 17 years. That's all I rode and racked 1000's of dirt miles on that bike. It was bullit proof. Loved that bike!
  14. YamahaWR450FMike

    Why Yamaha

    I own Yamaha's cause they are the best and their reliablity you can't touch. I've had only Yamaha's the last 20 years and never had any problems with any of them.
  15. YamahaWR450FMike

    Supercross Live Audio Webcast is BACK!

    I aint paying the $40 to listen it it. Way too much and I can watch it the next day on Television. The $40 stinks, and it sucks and so I'm keeping my $40 in my pocket thank you very much.
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