1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Pinned So what have you done to your bike today?

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

  1. kiffsta

    kiffsta Senior Member

    Messages:
    9,066
    Likes Received:
    6,872
    Trophy Points:
    1,168
    Joined:
    Aug 7, 2010
    Gender:
    Male
    Location:
    Brisbane
    It turned out be to 28 bikes , lots of Triumph’s, 3 Honda’s, 2 bultacos and few Yamaha dirt bikes , and a few scooters to boot

    Shed is quite full now

    2F127FD5-3534-4FC1-82F4-820712A7E30B.jpeg E9D5C979-94C5-4E1C-B066-8465DDF7DDC1.jpeg 20A340EF-F4D9-4FA1-B857-EE8E601F7556.jpeg 919F0DD2-44F0-4A96-A91D-DB5BF01382F6.jpeg 65C86EE6-C6A8-4EF3-9F1A-AE5451D45C19.jpeg
     
    • Like Like x 3
    • Winner Winner x 2
  2. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

    Messages:
    4,313
    Likes Received:
    2,383
    Trophy Points:
    898
    Joined:
    Jun 18, 2016
    Gender:
    Male
    Occupation:
    Panel Beater, Spray Painter, Custom Fabricator
    Location:
    Adelaide, South Australia
    My Bike:
    Yamaha's , 1990 FZR250R 3LN3 , 1986 XT250TS 57R , 1984 IT200L 43G, 1976 IT400C 510
    Damn i'd be interested in that 92 DT Yamaha if you were closer
     
  3. Qimbo

    Qimbo Active Member

    Messages:
    60
    Likes Received:
    21
    Trophy Points:
    178
    Joined:
    Jul 17, 2016
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Kawasaki ZX2R
    I’ve changed the reg/rec on the ZXR, the reading on the battery was way below 13v, and the voltage off the alternator was a healthy 25v @4000rpm so I guessed the thing in the middle was the issue.


    Worked ok for 5 minutes...

    Absolutely no effin’ clue what’s going on, but it would rev up happily beyond the 14k on 1st gear off a traffic light and then in 2nd wouldn’t even drag itself up to 10k. Then almost stall, then idle it for a while and it would work ok for a second....
     
  4. Linkin

    Linkin The Mechanic Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,730
    Likes Received:
    2,870
    Trophy Points:
    943
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    FZR250R 3LN6
    Does it rev cleanly in neutral and not moving?

    If the carbs are not at airbox pressure, you will experience bogging and loss of power the higher your speed.

    Check the air lines from the fresh air valve to the airbox, and from the air valve to the carbs.
     
  5. Qimbo

    Qimbo Active Member

    Messages:
    60
    Likes Received:
    21
    Trophy Points:
    178
    Joined:
    Jul 17, 2016
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Kawasaki ZX2R
    At times. If I leave it idling for a while and then open throttle it will, but just once. A couple of minutes more and back again all good. It’s friggin weird, I cannot point at anything right now. Just took the airbox out to check if everything is well connected and at place.

    It’s driving me nuts!
     
  6. Murdo

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

    Messages:
    6,397
    Likes Received:
    4,786
    Trophy Points:
    1,148
    Joined:
    May 4, 2013
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Tamworth, NSW
    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Sounds like fuel not getting to the fuel bowls.
     
  7. Qimbo

    Qimbo Active Member

    Messages:
    60
    Likes Received:
    21
    Trophy Points:
    178
    Joined:
    Jul 17, 2016
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Kawasaki ZX2R
    Mm ok. Would choke help with that? Now it won’t even idle, throttle just stalls it and the only way to rev it up is choking it.
     
  8. Murdo

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

    Messages:
    6,397
    Likes Received:
    4,786
    Trophy Points:
    1,148
    Joined:
    May 4, 2013
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Tamworth, NSW
    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    Open the drain screws in the bottom of the bowls and see if you get a good flow for at least 1/2 litre into a bucket/tin can.
    If only a slow or dribbly flow the you will have to investigate why. Fuel in tank, fuel coming out of tap, fuel going into carbs, etc.
     
    • Like Like x 1
  9. Qimbo

    Qimbo Active Member

    Messages:
    60
    Likes Received:
    21
    Trophy Points:
    178
    Joined:
    Jul 17, 2016
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Kawasaki ZX2R
    Will do. Thanks Murdo!!
     
  10. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,289
    Likes Received:
    2,504
    Trophy Points:
    918
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Albury 2641
    My Bike:
    1987 Yamaha SRX250, Honda 1974 SL125 K1, 2022 Triumph Tiger Sport 660
    I have been searching tonight for sprockets to suit the SRX and I am drawing blanks all round.. Standard on the SRX250 3WP is 428 chain and 17 / 50 sprockets... the original SRX250 51Y had 14/43 with 520 chain...
    Problem I have is that I am using the FZR25 3LN1 wheels so I need an FZR250 rear sprocket for 520 chain with either 44 or 46 teeth and the original SRX sprocket wont fit the drive hub on the FZR wheel.
    Depending on the final drive ratio I want as they are slightly different between the 3WP and the earlier 51Y. I would prefer to go to the taller gearing especially with the 350 engine in it as it will have plenty of go off the line and will easily pull higher gearing.
    None of the rear FZR sprockets I could find were low enough on the teeth to suit and it was hard finding them to suit 520 chain...
    I can get a really good 3WP sprocket from Japan (used) but nobody goes a 17T 428 front sprocket for the SRXs50 engine..
    Its doing my head in right now...
     
  11. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

    Messages:
    4,313
    Likes Received:
    2,383
    Trophy Points:
    898
    Joined:
    Jun 18, 2016
    Gender:
    Male
    Occupation:
    Panel Beater, Spray Painter, Custom Fabricator
    Location:
    Adelaide, South Australia
    My Bike:
    Yamaha's , 1990 FZR250R 3LN3 , 1986 XT250TS 57R , 1984 IT200L 43G, 1976 IT400C 510
  12. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    5,102
    Likes Received:
    3,472
    Trophy Points:
    1,148
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
    For the rear you can buy sprocket blanks and just machine the holes. That is how we use to do it in the olden days.
     
    • Agree Agree x 1
  13. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,289
    Likes Received:
    2,504
    Trophy Points:
    918
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Albury 2641
    My Bike:
    1987 Yamaha SRX250, Honda 1974 SL125 K1, 2022 Triumph Tiger Sport 660
    Problem is I can’t get a 428 pitch front sprocket to suit the SRX250.
    If I could get one at 17T that would eliminate all the issues but I can’t seem to find one.

    Maybe I will have a look at the blanks as well.


    Sent from my iPhone using Tapatalk Pro
     
  14. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,289
    Likes Received:
    2,504
    Trophy Points:
    918
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Albury 2641
    My Bike:
    1987 Yamaha SRX250, Honda 1974 SL125 K1, 2022 Triumph Tiger Sport 660
    After downloading the JT catalogue and searching through it, I came up with a combination that will work for me.
    The standard geared SRX250 51Y (which is the gearbox I have) uses 14/43 520 sprocket & chain.
    As mine will be a 350 it will be able to handle slightly higher gearing so I can go with a 14/41 520 sprocket & chain combo.
    The rear sprocket is a JTR846.41 in steel from the UK. I have a front sprocket in really good condition which is a 14T 520.
    Not sure what I would do if the front sprocket is no good as they are out of production.. I guess someone somewhere would make them.. Thanks for the direction to head in with the rear sprocket @my67xr
     
    • Like Like x 3
  15. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

    Messages:
    4,313
    Likes Received:
    2,383
    Trophy Points:
    898
    Joined:
    Jun 18, 2016
    Gender:
    Male
    Occupation:
    Panel Beater, Spray Painter, Custom Fabricator
    Location:
    Adelaide, South Australia
    My Bike:
    Yamaha's , 1990 FZR250R 3LN3 , 1986 XT250TS 57R , 1984 IT200L 43G, 1976 IT400C 510
    There's still quite a a few around Andy, even a few 15T's (my XT250 use's the same front sprocket's)
    here's a new JT 520 14T for the 51Y for $34 inc delivery ex UK
    thttps://www.ebay.com.au/itm/JT-14-Tooth-Front-Sprocket-Yamaha-SRX250-N-T-CT-1987-JTF155314/282314572759?hash=item41bb4283d7:g:uA4AAOSwA3dYbPjd:rk:10:pf:0

    A Whites 520 14T sprocket here for the 51Y for $24 inc delivery from Victoria
    https://www.ebay.com.au/itm/NEW-SPR...h=item23a7ca5022:g:b-UAAOSwIn5bcqGt:rk:1:pf:0

    Or this 'high level' 14T 520 sprocket for the 51Y for $31.50 inc delivery ex UK
    https://www.ebay.com.au/itm/For-Yam...h=item1a1bf99c1b:g:K6QAAOSwmLlX2~no:rk:5:pf:0

    JT 15T 520 sprocket
    https://www.ebay.com.au/itm/Yamaha-...h=item5d5f65846b:g:dM0AAOSwsFtZ5FYv:rk:8:pf:0

    There's a lot of rear sprocket's there, some are $30-$35 inc delivery, starting around 37T
    https://www.ebay.com.au/sch/i.html?...sc=0&_osacat=0&_odkw=JTR846.41&LH_TitleDesc=0
     
  16. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,289
    Likes Received:
    2,504
    Trophy Points:
    918
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Albury 2641
    My Bike:
    1987 Yamaha SRX250, Honda 1974 SL125 K1, 2022 Triumph Tiger Sport 660
    Yep, lots of choice for 14 and 15 tooth for 520 chain but nothing I could find for 428.
    I have loaded all the info on Standard 51Y, 3WP and what I want to use with my rear tyre etc into Gear Commander and it looks like 14/41 will work the best


    Sent from my iPhone using Tapatalk Pro
     
    • Like Like x 3
  17. Qimbo

    Qimbo Active Member

    Messages:
    60
    Likes Received:
    21
    Trophy Points:
    178
    Joined:
    Jul 17, 2016
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Kawasaki ZX2R
    Took the carbies out, set a bucket under them and followed Murdo’s instructions. All carbies bled half a litre or so of petrol, a constant drip in all four. Since I got them on the bench I took the bowls out, checked the floats, they look ok and the bowl was free of gunk or else. Put everything together, sounds better and performs a bit better but still wants to stall once I’ve revved it up properly.

    I’m running out of ideas....
     
  18. Murdo

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

    Messages:
    6,397
    Likes Received:
    4,786
    Trophy Points:
    1,148
    Joined:
    May 4, 2013
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Tamworth, NSW
    My Bike:
    1937 Royal Enfield 250, CF Moto 250 V5, Honda's XL250, CBR250, FT500 plus a few others.
    A drip is not enough, should have a continious stream like a little boy piddling from the bowls. What about the flow from the tap?
     
  19. Andych

    Andych Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,289
    Likes Received:
    2,504
    Trophy Points:
    918
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Albury 2641
    My Bike:
    1987 Yamaha SRX250, Honda 1974 SL125 K1, 2022 Triumph Tiger Sport 660
    Unlike an older man struggling with skirts or a dribble. Not that I would know of course.


    Sent from my iPhone using Tapatalk Pro
     
    • Funny Funny x 2
  20. Qimbo

    Qimbo Active Member

    Messages:
    60
    Likes Received:
    21
    Trophy Points:
    178
    Joined:
    Jul 17, 2016
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Kawasaki ZX2R

    Hahaha ok ok, I get the metaphor!

    Yea, it’s a constant dribble, not drops. Also steady flow from the tank. Next thing, vacuum valve which, other than cleaning it and looking at the external appearance of it, I don’t think I can test if it’s OK in anyway, can I?
     

Share This Page