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Pinned So what have you done to your bike today?

Discussion in 'The Pub' started by kiffsta, Nov 3, 2013.

  1. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    Yeah it's the 3LN3 Service Manual Supplement, so i'll have the carby spec's/setting's
    3LN-28197-60
    i will scan it and post it up here

    640x480-2018030500941.jpg
     
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  2. risky

    risky risky

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    pulled the motor out of denis,s cb350 k4[1972]last rebuild was new pistons inlet valve and valve guide. this time the new exhaust valve lost its head, stuffed the guide, peppered the head, holed the piston and broke part of the skirt off. motor had done less than 600 kms. cost of last rebuild was 1200 smackos. this one wil be around 2grand.
     
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  3. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    Better include one of these in the budget also :help:



    10500-rpm.gif
     
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  4. Wozza

    Wozza Active Member Premium Member Contributing Member

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    sh*tty valve or was it a bad guide? had a guide shatter once, held the valve open then the piston hit it....made a mess as it was hanging on the red line when it went......
     
  5. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Looks like the OEM version and not the crappy Webike copy.
     
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  6. risky

    risky risky

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    the valve was supplied by sirius in the states and is supposed to be used in vintage racing there.denis reckons he never went into the redline so maybe he did not. valve head totally gone and not sure of the seat as covered in alloy if there.chinese valves?all i can say is a mess.hope to talk him into forged pistond as this copy one did not come out well. interesting that both blow ups occurred in same cylinder.my fizzer now running well but will be trying to put some miles on it on friday so willl be run in before the drags.thinking of collecting moths for my pockets as when they fly will take weight off the bike.!
     
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  7. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    There's an episode of The Simpsons where Marge is looking to buy a melon baller. She picks it up and reads "Made in America". She then puts it down and says "No, thank you." :)
     
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  8. Andych

    Andych Well-Known Member

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    @risky
    Might be some gear in this lot that will be of use with the rebuild...
    https://www.gumtree.com.au/s-ad/newstead/motorcycle-scooter-parts/honda-350-engine-parts/1164775324
     
  9. Andych

    Andych Well-Known Member

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    Just a silly question on the 350... when fitting the electronic ignition you didnt turn the motor over with the points cover off did you?
    Was just reading about a guy in the UK that did exactly that and he managed to bend a valve as the points cover is also a cam bearing and it dropped a bit when taken off.. bit of a trap if you are not aware of it..
    Good luck with the rebuild :)
     
  10. Frankster

    Frankster See the World before you leave it Staff Member Premium Member Ride and Events Crew

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    Okay, It's not a 2fiftycc, so I won't take up too much space on this thread. I recently started to track down an electrical issue with my Vmax. What started as a normal investigative task has turned into a major episode. Not that I'm complaining, but lots to do still. The story so far...

    VMax 2014.jpg
    I've had this bike for about 4 or 5 years. Bought it from a guy in NSW country. Lets call him a LSOS. I've stopped believing previous owners when they say it's "great". I've learnt what I think is great seems to differ wildly with most other people. Anyhoot, after the normal cleanup, fluid change and maintenance, I rode her for a while and then parked her while other projects took over. The bike had always struggled to start and a new battery hadn't fixed this so this was my first "job" when I took the covers off her recently. Went straight to the starter as this seemed like the most likely culprit. To get to the starter you almost need to pull the front off the bike. I did because I didn't want to break anything. The starter was covered in oil and the armature was not making good contact. Also, this is a very early Vmax and some came from the factory with a 2-brush starter. I rebuilt the starter and it checks out fine to the specs in the manual, so we're ready to go.

    While I had the front wheel off I realised the tyre was 11 years old. Still not too bad, but off to Pablo's I go for a nice new sticky black thing.

    Now, this bike is the only bike I use the back brake on. It has single pot calipers up front and they are not great. While apart I notice they're a bit weepy, so off they come for a service.

    Forks look okay (no weeping), but a small sample of the fork oil stunk and was black, so off they come for a rebuild.

    The bike "tram-tracked" a bit, but given the frame on these things is marginal, I just rode it as is. Now with everything off I can see the error of my ways. The headstem bearings have no grease and are basically stuck in place. Weird that the bike was rideable with this much wrong. You guessed it, out they came and in goes a new set of roller bearings.

    And finally, the electrics on these old bikes is flakey, so I took the opportunity to upgrade some of the wiring and include a fan bypass switch for those traffic light moments on 40 degree days. I should have her back together in a few weeks...yes, due to multiple commitments and "must do" activities, I won't be touching the bike again for at least 2 weeks after tomorrow. It will be good if I can get the front end on her before I head off. See you soon.

    Vmax.jpg
    Front End.jpg
    Brakes.jpg
    Forks.jpg
     
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  11. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

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    My Bike:
    Yamaha's, 1990 FZR250R 3LN3 , 1986 XT250TS 57R , 1984 IT200L 43G
    My 3LN3 Service Manual Supplement is posted and on it's way to me :dance2:

    Seller sent me a message saying he couldn't list it on ebay due to some problem and said i'd have to get it through Buyee (more expensive)
    I said thank's for trying and that i would look elsewhere for it.

    He then sent me a message saying that if i bought a TT250R service manual off him for $40 inc post on ebay that he would include the FZR250R 3LN3 Service Manual Supp
    I thought about it then had a look on his listing's again, i was looking for the link to the listing to see if he would sell me the 3LN7 service Manual Supp and include the 3LN3 Supplement ?
    When looking at his listing's i found that they had listed the 3LN3 Supplement 3 hour's before for $19 plus post so i bought it there and then.
    Just had a message from him then and it say's thank's for buying from him and my service manual/s are on their way, hmm wonder if i'm getting 1 or 2 ?


    The seller currently has over 65,000 listing's for sale on ebay...
    https://www.ebay.com.au/sch/ts-parts-jp/m.html?item=282882372319&rt=nc&_trksid=p2047675.l2562
     
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  12. risky

    risky risky

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    the honda cb350 points cover is pressed metal held on by 2 screws and serves no bearing support. however the housing has 2 eccentric spindles to rotate for valve clearance and these were not altered and when setting the spark the motor was only turned in direction motor turns and there was no evidence of binding. i believe the valve was faultyand will be showing the dr specialist the head and barrells before anything is bought.denis believes new engine needed but i believe can be rebuilt.as i heard today of a death in the family will be heading back to newey after drags and then off to canberra.a busy time as of to cowra soon to pick up spares fizzer.

    not bike but falcon bf- water from washer bottle no flow so new motor.trouble was slime on filter which is also sealing rubber gasket.clean slime off twice and new motor then test and have had a wet screen. 13.90 plus half hour in sun and all is well.
     
  13. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    My condolences.
     
  14. risky

    risky risky

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    the big c and was expected but when it occurs a realization of mortality.
     
  15. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    The zxr passed its rwc today, i was riding it down to department of transport to pay my rego fee when it cut out, I managed to get her going and she idled fine but as soon as I got over 5000rpm, she would cough, splutter and conk out. I had heaps of fuel, I tried running it on prime, that didn’t help, I worked out if I kept it under 4500 rpm, that I could nurse it home. Not the most fun ride, but at least it is back at the shop.

    Guess what I am doing tomorrow... carbs.

    I’m betting a jet has come loose
     
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  16. Joker

    Joker Coming and going... Premium Member Contributing Member

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    I stroked and spoke to the 400 today, assuring her that I hadn't forgotten about our treasured relationship...
     
  17. ruckusman

    ruckusman Well-Known Member Premium Member Dirty Wheel Club

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    Has the ZXR been stabled anywhere near an FZR?
    Perhaps it's caught some sort of viral infection that affects carbs...
     
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  18. Wozza

    Wozza Active Member Premium Member Contributing Member

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    I fitted new lighter rear springs to the GB today, so much better now it doesn't top out on mild bumps .....Id like to say Ive lost weight but na! The bikes has... unbolt it, look at it,do I need this? if no throw over shoulder and forget about it, if yes can I find something lighter if not make it lighter :)
     
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  19. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

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    I've spent about 3 weeks trying to fix a 4-stroke scooter; starts easy but breaks down when trying to accelerate. Checked valves and timing, tried a new carby, new coil, new spark plugs, new/different CDI units, even had the top off the carby to test the slider - runs best with closed slider but can run spluttering with slider open or even removed. It seems to be the spark, not good enough to fire when the cylinder is full of air. Very strange.

    But now that I've given up on that, I can go back to pulling down the marauder to hone the bore and free up the rings, or to across carbies, or rebuild the engine in the ute, or shim the daihatsu valves, or sort out the wr250f, or combine the 2 xr200 after buying one yesterday. Then again, the parts for the zxr might arrive and I could finish that... Or start one of the other half a dozen projects I have here... Let's not do that yet.
     
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  20. kiffsta

    kiffsta Administrator Staff Member Dirty Wheel Club Contributing Member

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    Well, carbs came off, number 3 cylinder was full of fuel, pulled the carbs down and the fuel valve was ordinary at best and the seat was butchered with plier marks and the seal was squashed , grabbed a spare seat and have reassembled and test ridden and she is working like a bought one

    I have missed riding zxr’s , put a big smile on my face as I went through the gears
     
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