The XL600 thread

Discussion in 'Thumpers' started by Gregster, Jul 6, 2007.

  1. Stretchah

    Stretchah Been here awhile

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    Cheers Guys, that makes sense at least then I know it's all 100%, definitely don't want to have to pull it apart again any time soon :)
  2. RFVC600R

    RFVC600R SAND EATER

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    Chasing oil leaks again

    I'm weeping from the kickstarter and the starter decompressor lever on the right side case.

    Where can I get those seals??:D That'll be next weekend's chore.

    Today I'm finally changing the seals in the forks. All Balls Racing seals and Maxima Fork oil. New battery going in too!

    [​IMG]
    I can't wait to get offroad again! That's where my heart is.
  3. brucifer

    brucifer Long timer

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    Stretchah, the exhausts are kinda problematic on these but I don't think I've ever seen an intake that sunken. You got very lucky you caught this thing before those exhaust seat pieces fell out.

    I agree with the other posters who said to pull your cylinder. I would measure it and also check to make sure it's round.
  4. Duken4evr

    Duken4evr Been here awhile

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    A few action shots from my '83 XL, from back in the day. Bought a blown up XR500 and stole the suspension off that and bolted it on the XL. Rode the hell out of that thing, never found a bike that was easier to wheelie for long distances. Could pick it up in 1st and change gears at the balance point, all the way to 5th. It had controllable solid torque lazily and solidly delivered. For me anyway, the thing was squid wheelie magic, and I like doing those Have owned faster harder hitting lighter bikes including my current '10 Husaberg FE450 (which is a sweet up to 1/8 mile wheelie bike), but nothing came together for doing endless literally miles long monos better than that old XL. As a result, it was constantly in wheelie mode :evil

    [​IMG]

    [​IMG]

    "Urban Air". Had to clear the speed bump on landing. Full squid mode with tennis shoes :lol3

    [​IMG]

    Mammoth Mountain. The XL was very competent off road, really good in rocks and gnarly terrain. Just stay away from whoops and don't drop it. Kinda heavy to pick up.

    [​IMG]

    Stalwart bike, had about 40,000 miles on it when I sold it, as I already had a street bike and wanted a pure dirt bike, and was afraid of getting thrown in jail! The XL is such a friendly and yet capable "let's misbehave, what could go wrong" kinda bike. Bought it for $1,250 rode the hell out of it for probably 6 years, sold it for $1,500. She was good to me all the way :rofl
  5. Stretchah

    Stretchah Been here awhile

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    Brucifer, I'll agree with that, definitely lucky :D I'm going to pull the cylinder and get it checked out and honed - makes sense.

    Moparmanpete, Good spot, I hadn't noticed that, but, if you look at the close up below you can actually see the end of the wire from the helicoil....best get that checked too

    [​IMG]

    Duken4evr - Nice pics :)
  6. MentalGuru

    MentalGuru Crazy Diamond

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    It looks like it was running lean which would cause the exhaust seats to be an issue.


    Lean... Look at the eXhaust valve color.

    [​IMG]



    This is the color the exhaust valves should be.

    [​IMG]


    :freaky
  7. brucifer

    brucifer Long timer

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    Running lean or the valve lash too tight--as in no lash.
  8. Stretchah

    Stretchah Been here awhile

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    Neither would surprise me, I've had it about 2 months now and had issues with it all the way. When I got it the valve covers were chewed up and done up so tight I needed 2 extension bars to get them undone! Didn't seem like the valve clearances had been done for ages and there were some tight ones :eek1

    The jetting will be looked at after too as it's running an FMF pipe, so, want to make sure everythings spot on...
  9. bnjgriffin

    bnjgriffin stoked mostly

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  10. 12120

    12120 Unwittingly Domesticated

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    So anybody done the swap to 43mm forks? I was wondering if it is really worth it? Other then finding a set of forks. Is there a set of triple clamps that swap without to much trouble? Tips, advice, better ideas? :D Don't really do a lot of offroad, but thought it would be cool to have the XR swingarm and shock, and some bigger forks to match. Anyway hit me with your experience in this area.:thwak
  11. cynicwanderer

    cynicwanderer Been here awhile

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    yup, just today... I installed xr600r forks and a xrl triple. haven't ridden it yet. however, I have some experience with swapping the stock damper rod forks on my xr350r and xrl forks (essentially the same fork) and it's night and day.

    on the xr600l, I had to set them about 1" lower, in an attempt to level it. I think they are still a little higher than stock.the xrl triples have a place for the keylock, but I'll have to make a bracket to hold the instrument cluster and headlight assembly. the stock brake line might be a bit short at the bottom, so I'll have to extend it or just replace the whole thing with a flexible line.

    now that I have a 43mm triple I can play with some other forks as well.

  12. 12120

    12120 Unwittingly Domesticated

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    It looks like the triples use the same bearings for most all of the xr xl cr series of bikes for years. So I guess it is just a matter of finding triples that will work with mounting the headlight, cluster etc the best. Then just play with different forks.

    Chris
  13. lamebrain

    lamebrain Adventurer

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    I have! I swapped the suspension from an 87 XR600. I made a bracket out of 1/8" plate to be able to use the stock speedo, I don't have a key switch anymore, or a steering lock, but if someone really wanted to steal it a steering lock isn't going to stop them! and my stock key switch didn't work anyway.
    [​IMG]
    For the swing arm I had to move the lower linkage mount on the frame About a half inch for it to line up right and not bind up. I used the XR shock.
    [​IMG]
    It's a little bit taller but still not as tall as the Xr. No more cush drive and it has a smaller rear brake, but I think it handles a lot better now. I would like to have used some XR400 forks because you can adjust rebound and compression dampening, but I think if I do another fork swap it will be for a pair of USD's :evil
    .
  14. cynicwanderer

    cynicwanderer Been here awhile

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    yes, pretty much. I chose the xr650l triple, because it has a hole for the keyswitch and at least a couple of mounting tabs. as far as I know, '91-92 xr600r forks are cartridge vs. damper rod. xr400r forks are sweet, I have them on my xr350r, however, the XL wheel won't bolt on those.

  15. MentalGuru

    MentalGuru Crazy Diamond

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    '91 and newer XR600R's are cartridge forks and use a 17mm axle.

    Swap to the 17mm bearings wheel bearings that fit with the later XR600R larger axle and spacers.

    With XR400 forks one washer needs to go on the axle treads to center the wheel correctly.

    :freaky
  16. cynicwanderer

    cynicwanderer Been here awhile

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    '84-'90 XR600R are damper rod style forks that fit XL axle, '91-'92 are cartridge style forks that fit XL axle. '93-2000 XR600R, all XRL650L and all XR400R are cartridge style forks with larger axle. not all calipers/rotors are interchangeable, even if the wheel is fitted/centered.

  17. m2h

    m2h "Old guys rule"

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    Mine have petrol hose attached and fed down to a securing loop on the right side behind the brake lever. Probably better than leaving them as is in your pik.
    m2h:1drink
  18. m2h

    m2h "Old guys rule"

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    Oh boy, now you've got me worried:cry My compression seems to be the same:eek1
    m2h
  19. Stretchah

    Stretchah Been here awhile

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    M2h, I hope it's not the same issue, but, it may be worth checking out to be on the safe side. Like Brucifer said I was lucky the chunk of seat didn't come off and cause more damage. The related issues I was having was that it would randomly die on rides too and was a pig to start when comp was low. When it was high I needed decomp to get over TDC and when low I could kick it sitting down without :eek1.

    Something else to look for perhaps is when I took the carb boots off I noticed that I had black soot in the bell mouth of one of the carbs where the valve wasn't closing and the exhaust gases were blowing through.
    I'll keep my fingers crossed it's an easier fix for you :)

    On the upside I took the cylinder off and its very smooth and no damage at all, so, going to get a hone and new rings :D Dropping the head and Barrel into the shop on Saturday, so ,will keep you updated on progress, can't wait to get her back on the road
  20. brucifer

    brucifer Long timer

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    Stretcha, did you measure your cylinder and piston? I had an XR600 cylinder that "looked" perfect but once measured was out of specifications, so I ended up having to bore it.