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What did you do to your Yamaha today?

Discussion in 'XJ Technical Chat' started by Cutlass84, Jun 4, 2007.

  1. Ground-Hugger

    Ground-Hugger Member

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    Pour half a can of seafoam in the gas tank, run bike, if needed run more seafoam through it.
     
  2. Dave in Ireland

    Dave in Ireland Well-Known Member

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    Got around to replacing the spark plugs that had been in for an unknown mileage. Fitted Denso W24EPR-Us in place of the old NGK BPR8ESs, just because that's what is available easiest to me. I have no axe to grind against NGKs, I've always found them to be excellent.
    The bike didn't start any different, but it runs slightly better - it's this kind of thing that points up how sensitive these engines can be to slight differences. I might try new plug caps next, as a couple of them are definitely quite old, and one of the coils had been replaced with something unknown and looks like it might not be OEM.
     
  3. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Don't break your foot.

    Drain the float bowls and tank, and then do the Seafoam with new fuel. You've probably got a combination of less than stellar fuel and gummy crud in the jets.
     
  4. Roland russell

    Roland russell New Member

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    I did the fuel and put new N GK 's a month ago . I have heard of sea foam glad to hear it firsthand thanks it's Saturday today and hopefully xj day . First stop auto parts THANKS!!
     
  5. Roland russell

    Roland russell New Member

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    Thanks ! Did what you suggested , added sea foam and it runs GREAT!
     
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  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    I've been rebuilding a spare set of carbs. Today I finally got a chance to do a running synch and go for a ride, and I learned three things.

    1. I have a vacuum leak at one of the new intake manifolds, so my decision to not use gasket dressing was unwise. Carbs will come off again tonight (thankfully this is only the third go-round with that).

    2. Even with the vacuum leak the bike loves this set of carbs. They are not going to be a spare set; I'll rebuild the original set this winter.

    3. Pulling a clutch lever hurts when you're only two weeks past having needed to put a mushed finger into a splint. My next ride will have to wait a few more weeks.
     
  7. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Hmmm..... well rebuilt carbs decided to develop a vacuum leak. Bummer.

    On the upside I think I know where the leak is.

    On the downside it means that I messed up installing one or more of the throttle shaft seals. Bummer x2.

    On the really upside the old carbs are still in shape to run well, and the new intakes are leak free, so there is that.

    Of course snow is on the way.
    Bummer. LOL
     
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  8. Johnius

    Johnius Member

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    Rebuilt the front brake light switch, hooked up the heated gear, and RODE! And filled it with gasoline for $1.88/gallon.
     
  9. quebecois59

    quebecois59 Well-Known Member

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    Checked if an '83 Yamaha XS650 SPecial manual petcock would fit on my Seca900 tank, as a temporary fix for the slow leak I have had for one week. It seems it would work, even if the RES position may be a bit problematic (wrist contorsion).
     
  10. Johnius

    Johnius Member

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    It wasn't today, but I removed the carbs and sent them off to Hogfiddles to get rebuilt. And I checked the valve clearances.
     
  11. wink1018

    wink1018 Active Member

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    Just unboxed a pair of Honda CB coils, 6 feet of wire, and 4 resistor caps.

    Time to get the old iron running again...
     
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  12. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Stopped writing a reflection for college. Looked at it. Sighed. Went back to writing.
     
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  13. XJ550H

    XJ550H Well-Known Member Premium Member

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    sat with them while having my morning coffee, told them spring is around the corner. tucked them in and said see you tomorrow
     
  14. XJ550H

    XJ550H Well-Known Member Premium Member

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    8 inches of snow last night 45 degrees today fired up my maxim to test a new tci out . ran well
    mmmm the sound of her running wish I could have gone for a ride.
    soon very soon.............
     
  15. Jetfixer

    Jetfixer Well-Known Member

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    Temps hit 50 2 days in a row fired up both days let her run for 15 minutes ( it rained both days :mad:) sounded so nice ...counting days till spring
     
  16. Stumplifter

    Stumplifter Well-Known Member

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    15 degrees today - High of 13 tomorrow . . . . . .

    Hate you guys.


    I can't recall ever having such a case of cabin fever . . . we are only in February but I am soooo ready for riding weather.
     
  17. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Snow is soft, so if you fall NBD. Go ride :)
     
  18. tabaka45

    tabaka45 Well-Known Member

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    Nice weather in South Georgia almost all year. I ride all year, and yes it's a bit hot and humid July -- Sept, and a few days of cold in Dec--Jan. Took a casual ride on Friday, and my XJ started immediately and ran great. Just love the sound of these 4 cylinders purring along after spending some time on my v-twin Honda. Going to take a close look at my carbs tomorrow. Appears to have some oil or something appearing around the area of the throttle shaft on one of the carbs. The plugs look great so I'm hoping it's just some residue.
     
  19. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Not mine, but I finally dialed in Virago that I've been working on for a friend. I (and the PO) neglected to jet for the aftermarket exhaust. She pulls damned hard now, and isn't running lean anymore. Sadly It's going to be shipped to another state, as are my friends. Oh well. road trip :)
     
  20. wink1018

    wink1018 Active Member

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    Stared at it. (Waiting for a fractured Ulna to heal)
     

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