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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. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    You're a good man @thebeefsalad

    It would be a different world of we all had a neighbour like you.
     
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    Last edited: Dec 6, 2022
  2. thebeefsalad

    thebeefsalad Well-Known Member

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    buell still didn't run right last night. pulled carb out after deciding it's okay to pull the plug on the air/fuel screw so I can give it a full proper cleaning. Upon reassembly she decided to weep gas. punishment for not touching the float :/ Well, the petcock also freaking leaks. Woke up this morning to the smell of gas in the house.

    SV is on the left now. Great news Charlie Brown! It's fuel injected so I won't be cleaning carbs. It also won't be running any time soon if I can't get the gas cap open. She's soaking in penetrant now. Key turns 1/8. 1/4 turn to open the cap. I'm going to imagine the tank is a **** show on the inside. Forgot the DRZ battery in the tail of the Buell so no clue if the fuel pump works nor the mileage. They bought it with 15 miles on the clock, and I'm willing to bet it's under 10k. She's dirty, but I've yet to spot a scratch on her. Looks like she may have been dropped once on the right side, and only has a few boot marks on the grab rail. If I didn't just park a rat hawk (ugly a.f. nt650) in front of the lift, I'd probably try to scoop this one up. Might still, if I can get other bikes gone before it sells.
     
  3. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    @thebeefsalad - Post a pic of the Hawk GT when you get a chance. I've seen plenty of good ones, so you might as well show us a RAT version. They're called 'BROS' in our neck of the woods. They're JDM imports and they come in medium (NT400) and large (NT650) varieties. This one is punched out to 705cc and has all the go faster track bits on it. Cheers

    upload_2022-12-6_15-22-25.png
     
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  4. thebeefsalad

    thebeefsalad Well-Known Member

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    roger that. at the moment all I have is a potato picture from the night I brought it home. Kinda want to get some bros graphics to confuse the hawk enthusiasts.

    SV gas cap still didn't want to pop. Decided I'd pull the pump to get the "gas" out and see how bad it is. plenty of surface rust, plenty of debris, but I think she'll clean up nice. Need to call the rad shop I've used in the past to dip tanks to see if they think dipping might solve the gas cap issue. In the mean time I dumped in fresh gas and have the tank inverted hoping it might dissolve some of the muck on the lock mechanism. Dropped the battery in, showing under 2500mi on the clock! I expected under 10k, but 2400 and some change? GTFO!

    crf150r came back for it's chain slider/air filter. Lost the washer for the chain slider and don't feel like digging it out of the parts washer tonight, so it sits with the slider 2/3 mounted, a fresh air filter, and an empty tank. Tomorrow I'll figure out the missing washer situation, dump some 91+ octane in it and see how "ruined" it is. Contractor told the neighbor her bikes were ruined from sitting for so long and offered her near scrap prices. If it wasn't for all the time spent cleaning up the mess from air filter oil, I think it's been a fairly easy recovery so far (relatively speaking of course.)

    Calling my realtor. I think it's time for that 2/3/30 house. or a 2/2 and a big shop with a shitter in it.
     
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  5. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    The Spada decided to run on one cylinder, so I thought I'd check my records for last spark plug change etc. Couldn't find the answer, so I went to give the old girl a service. Oil and filter all good, so drained 6 month old fuel from the tank and started cleaning/replacing air filters; plugs etc. I was intending to pull the carbs apart and give them a good clean, but I am limited for time, so I will do the basics and start the engine with a remote tank to see if she runs on both cylinders.

    IMG_1601.JPG

    The manual isn't overly clear, so I will ask our resident Spada expert @Gizziracer as he will know this off the top of his head. @jmw76 may also know.

    1. which cylinder gets the longer inlet trumpet? The bike had the short one coming off the back cylinder and it looks like the airbox mesh was deformed because of that layout. Manual isn't clear about this.

    IMG_1597.JPG IMG_1598.JPG

    2. The bike is running the recommended NGK CR8EH9 Plugs. Are these what you run?

    3. The drive ratio is 17T/51T, do you know where I can source new sprockets so I can raise the gearing? UPDATE: It looks like I am running a CBR rear sprocket (51T) instead of the standard 54T. Doesn't look like there are any smaller rear sprockets available for the CBR250R, so will probably just keep running the 51T. If any CBR owners know where to source smaller rear sprockets, please let me know. I don't really trust any of the chinesium sprockets labelled for CBR250RR.

    IMG_1596.JPG
     
    Last edited: Dec 9, 2022
  6. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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  7. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    Spada service completed and she's still running on one cylinder. New plugs; air filter and fresh fuel, but still not right. I will check spark, but I'm leaning towards carbs off and a thorough clean. She's been sitting for a long time and even Keihin carbs gunk up eventually.
     
  8. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Check your valve clearances too.
     
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  9. thebeefsalad

    thebeefsalad Well-Known Member

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    Spent a couple hours yesterday with a small ball peen hammer on the sv650 gas tank. I'd guess the key was moving a thousandth of an inch with each tap, but she eventually popped open! Got the lock/latch mechanism all cleaned up, but need to pick up some graphite lube to complete the job. It's not my bike, and I'm likely not drawing a dealer rate for these jobs, but I don't see the point in half assing it here. Spent an hour today flushing crap out of the tank, and it's still crusty a.f. I think that'll be headed off to the industrial rad shop for a nice hot bath and re-line.

    crf150r is being a pain in the ass to tune. If I can get the idle to settle after a blip, it wants to bog coming off idle and has to be milked up a bit before you can giv'er the beans. Started writing this this morning and just came back to it. accel pump isn't pumping gas, so that explains the bog. seems like the jet itself is clogged since the diaphragm and spring are in good shape and were installed properly. going to break it down and throw it in the ultrasonic for a nice hot bath and hope she clears up. Neighbor is already bitching about the cost of repairs, and today I found out the petcock needs a rebuild and the rear tube needs replaced. Hopefully she remembers the discussion we had about tank cleaning/lining and injector cleaning...
     
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  10. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    Well, I guess you can never be completely sure of anything, but I'm 99% certain I have found the issue with the Spada running on one cylinder...

    Gunk 2.jpg

    Not sure what this stuff is, but I'm pretty sure I didn't put it there.

    Gunk.jpg

    Difficult for the main jet to work with a piece of crap stuck in it.

    I'll give the carbs a good 3Bond bath overnight and clean them up tomorrow before mounting them again. I might order one of Blair's kits if the bowls leak.

    Our of curiosity, does anyone know what this diaphragm does? It's not on the VT250F carbs and it seems vacuum activated. Parts manual calls it a "Valve Set, Air Cut" and the manual says "replace diaphragm, spring and O-ring as a set".

    Diaphragm.jpg
     
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    Last edited: Dec 11, 2022
  11. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Air cut valve.
    The air cut valve is damage control in the sense that with the carburetor's inane official-spec screw settings, exhaust afterburn results. Popping. The air cut valve (mostly) prevents the afterburn by enrichening the idle circuit when the throttle is closed.
    from https://www.ngwclub.com/forum/viewtopic.php?f=54&t=67126

    I have been meaning to look into this as I think I can just produce a blanked off version of our OR-040 to achieve this. Oops, I need to add the OR-040 to the Spada kit.
     
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  12. jmw76

    jmw76 Well-Known Member

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    That's a disgusting excuse for a gasket. Looks like mastic or similar. Certainly not what you use to seal a float bowl.
    Hopefully that will get the little Spada going again.

    Peter.
     
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  13. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    Spada Update: I couldn't wait until tomorrow and the 3bond had already done its thing, so I rebuilt the carbs and she now runs better than it has in a long time (maybe ever). That's an interesting article in Blair's link. My air/fuel screws are set to 2.5 turns out as the guy in the article suggests for the GL1100. I never get popping or overrun, so the little air cut valve must be doing its thing. Interesting that they recommend throwing it away and just making sure your air/fuel is set right. I need to get another vacuum plug so I can balance the carbs at some stage. No fuel leaks from the carbs, but I have made a note to order some LiteTek Spada kits when I next need to order from Blair.

    @Gen sourced some smaller 428 rear sprockets for his DLRA supercharged 250. Tiny, I tried the QLD supplier link you had in your build, but that website is gone. chaingangchainsandsprockets.com.au I will try ringing the number tomorrow; let me know if you have someone who has 47T or smaller rear sprockets for 428 CBR250R or Spada wheels.
     
  14. thebeefsalad

    thebeefsalad Well-Known Member

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    My first bike was a gs450 that had a bowl sealed with silicon and lacked an o-ring. hit up p.o. "WTF? who does this?" he said it was a pro mechanic. I spent months chasing silicon boogers out of that carb and never got it right. I should hit up the next owner to see if he ever put it back together and got it running right.
     
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  15. thebeefsalad

    thebeefsalad Well-Known Member

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    crf150r has the wrong pilot in it. It came to me with the mix screw at 7/8 out, and oring-spring-washer were the order of parts. o-ring was split when I finally fished it out. Tolerance for this carb is 1 1/2 to 2 1/4. Post ultrasonic the accel pump is working again. stock setting (2 out) of the mix screw was way off. split the difference of the lower limit and it still was pissed. Went full minimum and still not happy. WTF? Pulled up video (I record as much as possible to document how things were, and where I end up with them) and I said it was 7/8 out. Set it to 7/8 and it will come off idle and not hang. If I can get it dialed in close enough I may send it with the wrong pilot, and leave a not in the airbox for the next owner ;)

    Parts she has ordered so far. float needle/gasket kit and battery for buell. fuel pump and battery for SV. air filter for crf150r, air filter and a piece of the choke assembly for the yz250. Well she's going to love it even more when I tell her the crf150r needs a new rear tube and a petcock rebuild, if we can find a kit for it. Thanks Honda for using rivets instead of screws and not making this a serviceable item.

    Currently waiting on her to get home and find graphite lube so I can finish putting together the sv650 gas cap. My fingers still hurt from that.
     
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  16. Gen

    Gen Well-Known Member

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    Google "428 48t sprocket blanks australia" (or substitute 48T for another size) This link was the 1st to pop up, an average machinist would have no trouble machining the center, and mounting bolt holes, if you supply a sample
    https://www.brisbanemotorcycles.com.au/blank-rear-sprocket-alloy-48t-520p-silver

    I seem to remember dealing with :-
    https://www.jtr.com.au/brand/talon/?sort[0][field]=custom_fields.sort_order&sort[0][order]=asc
    I had to modify the hub to use the 43T sprocket, where the sprocket bolts & chain wanted to share the same area
    [​IMG]
    Tiny
     
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  17. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    Thanks @Gen That Brisbane Motorcycles website is gold. There are no 47T rear blanks for a 428 pitch chain, but there's a 48T option, so that will do. Thanks again for your help. I need this for the Spada, but CBR250RR owners can use the same blank to raise their drive ratios.

    upload_2022-12-12_10-33-38.png
     
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  18. Gen

    Gen Well-Known Member

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    It might be a good time to look for an 18" rear wheel, incase you need to raise your gearing a bit more, either way, remember, the DLRA inspectors WILL check your tyre's date stamp, any older that 10 years, you will not compete, AND, you will need steel valves, stock ones can bend & fail at high centrifugal forces, base your gearing calculations around max horsepower figures,your top speed hopes & not the redline, although it might help you to pull a very tall top gear, by targeting the max HP after the last gearchange, One more thing,,,,,you WILL get around 8% wheel spin (more like a slip) on the salt (my humble postie bike lost 7 mph on the salt, compared to bitumen.
    An aerodynamic fairing can be good for up to 10 mph , NOT the stock fairing though ;)
    Make sure you download the DLRA rule book as there are lots of changes in requirements
    https://www.dlra.org.au/rulebook.htm
    Now you have 3 months to practice waiting, 'cos there will be lots of that :lolsign:
    Tiny
     
  19. Frankster

    Frankster Grey Pride...Adventure before Dementia Staff Member Premium Member Ride and Events Crew

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    @Gen I won't be taking the Spada to the salt. I just need to raise the gear ratio for a little bit more speed. It's just over 50km to Launceston from my place and the Spada is my preferred weapon of choice (comfort) for trips that don't require a vehicle. Standard is 17T/54T and I'm currently running 17T/51T and the bike still accelerates fine, so 17T/48T is my next ratio to try.

    Spada.jpg
     
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  20. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    Booked the Triumph in for its first service... and ordered the quick shifter as well :dance2:
    Who needs a clutch for gear changes :D
     

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