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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. Unkepttoenails

    Unkepttoenails Demented

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    I have a question guys . what mileage have you guys gotten from your zxr 250 before it craps itself? . also has anyone tried to use C rings in an A engine by filing them down the extra millimetre? . i am in the process of installing my ahl rings in the coming days
     
  2. Murdo

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

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    Don't care how good you are with a file but you would never be able to get then to seal properly and possible cause a lot of damage to the bores. The AHL ring will be fine if you go careful when fitting them.
     
  3. Frankster

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

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    I'm pretty sure that's not how rings work. Stick with the right (48mm) rings. Even if they aren't Japanese, they're still your best bet as Murdo said.
     
  4. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    I have a number of things I am waiting on for the SRX including the head, some machined parts, seat and the weather to warm up more so I can paint... so once I have the wheels on it will come off the stand and the CB400 will go up... not for a restoration though... I have been looking for a bike to use when I get my Learners (should never have let the bike license lapse) and after having a real good look at the 400 I think I can clean her up well enough to get her running and on Historic rego. It will be a good bike to get back into it with.. so look out for some progress soon on the mighty 1975 CB400F
     
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  5. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    Agree 100%... every possibility some or all would break on the first heat cycle... and that would really pi$$ you off.
     
  6. kiffsta

    kiffsta Senior Member

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    Picked up a pair of 80’s ts185’s , 85 and
    89 , the 89 is going to my son so he can learn how to fix it up

    Poured some fresh fuel in and she started straight up

    F5354682-A056-47D9-BDC2-FB06CA6D0FC7.jpeg
     
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  7. ShaneP

    ShaneP Well-Known Member

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    You'd have to take over 3mm off for circumference with 1mm bore. For a slow-running, low-power motor of large enough bore, you could do it at a pinch, but this is none of those. Take it out to 49mm (can you swap barrels and pistons for a C model?), Or find other 48mm piston rings to fit if you're really worried about the AHL rings.
     
  8. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

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    I have been looking around for decent Inner Tubes for the CB400F and they are a difficult size to find.
    Tyres are set as 90/90-18 Front and 100/90-18 Rear will do nicely.. now just to find the inner tubes and rim tape.
    I was going to use Avon tyres but the Pirelli City Demons look to be a good match....
     
  9. Murdo

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

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    I like the Avon road runners I have on my 500. They work good wet or dry and have good feed back to the rider.
     
  10. Murdo

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

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    Been checking over my son's latest acquisition, a SWM Gran Turismo 440.
    SWM 440 015.jpg
    10 months old, 8,000Km and been looked after very well. Is a cracking little bike to ride, great brakes, good suspension and holds a line in corners really well, torquey engine and great on fuel.
     
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  11. Unkepttoenails

    Unkepttoenails Demented

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    Unfortunately you can't swap cylinder as far as I am aware as the strokes are different . Thanks for the input about the piston rings too I'm still learning about all this

    Sent from my Redmi 5 Plus using Tapatalk
     
  12. Unkepttoenails

    Unkepttoenails Demented

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    @Frankster @Murdo thanks again guys for the help I appreciate it


    Sent from my Redmi 5 Plus using Tapatalk
     
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  13. Frankster

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

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    Actually, you can...

    If you find a good set of ZXR250C Barrels and Pistons, you can transplant them onto a ZXR250A engine. No other changes required. A few racers do this as it gives them a slightly larger capacity (about 260cc I think). It's basically the same as boring the ZXR250A engine out as you keep the ZXR250A stroke, but increase the bore from 48 to 49mm. I've been meaning to do this for a while, but haven't got around to it.
     
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  14. kiffsta

    kiffsta Senior Member

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    Why do people cut wires ? Every connector has been cut off and just twisted and taped on this ts185. I spent hours slowing fixing it, just need to find some more period connectors so I can do it properly. Might be easier to buy a used one

    It is a wonder how it ever ran

    I thought I’d use the spare ts-185 bike for the harness but it is the same if not worse

    Fitted a spare oil pump and plumbed it up so the oil injection will work again. Replaced the bent handle bars as well. Hopefully the lad appreciates it



    62B7C3E0-20BC-48A8-9089-511AA8BBC03F.jpeg


    87B5211E-5853-46A9-824D-4FFDC7CBBD3F.jpeg
     
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  15. risky

    risky risky

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    bought some parts from cmsnl that david silver did not have.
     
  16. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    Because they are there.
    Because they are master craftsman.
    Because the tail light globe has burnt out.
    I guess those would be the 3 main reasons.
     
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  17. jimv50

    jimv50 Well-Known Member

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    Changed the engine oil and the pattern filter changed for Honda one, not impressed that the filter spring was missing, luckily I'd ordered a new one with the filter from Dave Silver.
    Easy job compared to changing the bloody spark plugs....made easier with a hinged socket borrowed from the bike shop, not made easier my lack of paddock stands.
    Brake fluid to change next and then carb balance when I get my new fuel line delivered
     
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  18. Murdo

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

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    I bet that hurt. :lolsign:
     
  19. risky

    risky risky

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    well, all i can say is that after parting with the money i had to let the hems on my jeans down.lol. had to buy a headlight rim and david silver did not have.could have had mine panel beated and brazed but would have cost same or more.david silver spares order arrived today and there was a lot of cardboard packing in a grand box.
     
  20. Murdo

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

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    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Try to help out with another XL250s (just because I fixed mine everybody thinks I know all about them) and kickstart would not return when kicking engine over. Drained the oil and had lumps coming out.
    Risky XL250s 002.jpg
    Sidecover off and clutch out, but the problem is internal in the gear case. Engine out after removing dodgy bolts, the rest were finger tight. Off with the top end and split the cases. Spring for kickstart shaft assembled wrong, so easy fix. Whilst washing the cases I found this.
    Risky XL250s 010.jpg
    This is the bottom side of the locating pit for the second gear shaft bearing.
    Risky XL250s 008.jpg
    This pin should stick up about 2mm, but the PO had not got it lined up with the hole in bearing and either big hit with hammer or just kept tightening the bolts until it broke the pin through the case. :headbang: I used some Devcon epoxy to hold the pin and fill the hole.
    Lots of sludge in the bottom of sump.
    Risky XL250s 006.jpg
    Now who would put a new O ring chain around this sprocket?
    Risky XL250s 004.jpg
    There are just so many small things wrong with this poor bike that it will take me a long while to get it into some sort of running shape. Next time I talk to the owner I will ask him if he enjoyed it, as he sure got f*#ked over on this Ebay bargain.
     
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    Last edited: Jul 27, 2019

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