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

Pinned Look what the postman brought today !

Discussion in 'The Pub' started by my67xr, Jun 13, 2017.

  1. Linkin

    Linkin The Apprentice Premium Member Dirty Wheel Club Contributing Member

    Messages:
    3,507
    Likes Received:
    2,050
    Trophy Points:
    943
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    ZXR250C
    @ShaneP is correct.

    Ohm's law. If you double the resistance with the same amperage, the voltage must be halved. No way around it.

    Think back to your simple circuit of a power supply/battery, fuse, switch, and globe (load) that they teach (I did it again just this week, and did it before during my Cert 2). If you add another globe in series, they both run dimmer. Exactly the same thing.

    Double the resistance, the same amperage, half the voltage.

    Parallel circuits multiply the amperage and half the resistance.

    Was discussing this problem with my teacher at TAFE today... the gist of it was to wire them up in parallel and see what happens, or 'suck it and see' - my main concerns are blowing the transistors in the TCI, blowing fuses or melting the wiring.

    With all that said, my ZXR has been happily running along since I did the original installation and it has been running fine, so clearly there is enough juice for a decent spark.

    Wiring them in parallel will require resistors.
     
    • Agree Agree x 1
  2. Frankster

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

    Messages:
    1,773
    Likes Received:
    982
    Trophy Points:
    698
    Joined:
    Nov 19, 2013
    Gender:
    Male
    Location:
    Melbourne
    My Bike:
    Spada & VT250F
    All very interesting stuff. Looking forward to seeing how this plays out. I'm not good with electrics, so happy to be lead. Just to clarify...in a normal coil/lead/plug setup, if you have a 2ohm resistor (in the coil's primary winding) & you replace this with 2 X 1 ohm resistors...what's the difference?
     
  3. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

    Messages:
    3,012
    Likes Received:
    1,762
    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
    No difference if they're wired in series @Frankster ,
    Also a coil with no or little primary resistance would only have a few primary winding's, so wouldn't make a very big spark
     
    • Informative Informative x 1
  4. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

    Messages:
    1,419
    Likes Received:
    586
    Trophy Points:
    498
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    This confused me. Ohm's law is Voltage = Current x Resistance (V=IR, I is current) but it slightly misleading because voltage is set/supplied "force", and current is the resultant flow through the resistance. When working out total resistance, in series (a single line of flow through each resistor one after the other) the resistance is added - R total = R1 +R2 +... In parallel (think of it as turning on multiple taps, one pressure source, more opportunities for water to escape, greater amount of water escaping) the total is found by adding the inverse of the resistances: R total= 1/(R1) + 1/(R2) +....

    Once you have your total resistance, then you go back to ohm's law to work out the current. Of course, you could connect your multimeter once it's wired in to confirm it.

    One thing to note: if they're in series, then both coils stop working if one is faulty, but if they're in parallel, one can stop working and the other will keep working normally.
     
  5. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

    Messages:
    7,803
    Likes Received:
    4,635
    Trophy Points:
    943
    Joined:
    Jun 14, 2012
    Gender:
    Male
    Occupation:
    Troublemaker
    Location:
    North by NW NSW Oztralia - Tamworth
    My Bike:
    *Kawasaki ZXR250C *Yamaha FZR250R 3LN1 *Suzuki GSX250 *Triumph Bonneville 750 T140V
    Last helmet was way out of date and loose on my head after losing weight ... so Ive had to drop a size ... its a very snug fit but hopefully will get better with a bit of use ...

    IMGP1709 (Medium).jpeg IMGP1711 (Medium).jpeg
     
    • Like Like x 2
    • Looks good! Looks good! x 1
  6. Murdo

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

    Messages:
    4,636
    Likes Received:
    3,760
    Trophy Points:
    923
    Joined:
    May 4, 2013
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Tamworth, NSW
    My Bike:
    Maico 250, Royal Enfield 250, CF 250 V5 and 650TK, XL250, CBR250, ZZR250 plus a few others.
    Nice. I recently bought a -17 and it is a good fit and reasonably quiet too.
     
  7. Andych

    Andych Well-Known Member Premium Member

    Messages:
    1,758
    Likes Received:
    1,080
    Trophy Points:
    798
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Sydney
    My Bike:
    1987 Yamaha SRX250, Honda 1975 CB400F
    I finally got my shipment from Japan.. 3 days for EMS to get it from Japan to Sydney and into the Australia Post system.. and then nearly 10 days to get to me.. still... it arrived with my SRX6 lower bridge & stem, plus an SRX6 front axle.
    I also picked up a headlight mount (it will need a little modification to fit) and a good set of mirrors.. plus another kilo or 2 of SRX mixed nuts and bolts..

    Side by side with the FZR item

    UNADJUSTEDNONRAW_thumb_122c.jpg

    UNADJUSTEDNONRAW_thumb_1230.jpg

    UNADJUSTEDNONRAW_thumb_122e.jpg

    UNADJUSTEDNONRAW_thumb_122f.jpg

    And then my tyres arrived.. one yesterday and the other today

    UNADJUSTEDNONRAW_thumb_122a.jpg

    UNADJUSTEDNONRAW_thumb_122b.jpg
     
    • Like Like x 1
    • Winner Winner x 1
  8. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

    Messages:
    2,864
    Likes Received:
    2,088
    Trophy Points:
    823
    Joined:
    Dec 23, 2012
    Gender:
    Male
    Location:
    Thailand
    Home Page:
    My Bike:
    Yamaha FZR400 3TJ1, Honda MC22
    So the plan is to swap the stems Andy? Aus customs might have to record everything so they can ban anyone who goes over the $75000 mark and does not register for GST with the ATO. That would slow down deliveries a lot.
     
  9. Andych

    Andych Well-Known Member Premium Member

    Messages:
    1,758
    Likes Received:
    1,080
    Trophy Points:
    798
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Sydney
    My Bike:
    1987 Yamaha SRX250, Honda 1975 CB400F
    Haha, it actually cleared Customs etc in the 3 days ex Japan. I use Zenmarket and they had all the correct paperwork showing the GST etc.
    it was purely Australia Post that took 8 days to get it to me.

    I would love it if it was as simple as swapping stems.
    The FZR stem is welded in and the section above the top bearing is different so it will be a custom machined stem or, just looking at it, we may be able to get away with an insert into the top bearing recess which will accommodate the standard upper bearing from the SRX6. The bearings are 15mm deep where the FZR are 13mm. All other sizes are the same.
    I will talk to my machinist and see what he thinks.


    Sent from my iPhone using Tapatalk Pro
     
  10. Andych

    Andych Well-Known Member Premium Member

    Messages:
    1,758
    Likes Received:
    1,080
    Trophy Points:
    798
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Sydney
    My Bike:
    1987 Yamaha SRX250, Honda 1975 CB400F
    My little package of Titanium disc rotor bolts arrived today

    UNADJUSTEDNONRAW_thumb_1231.jpg

    And while they havent arrived yet I ordered these this morning.. in anticipation of getting my rims finished soonish :)

    Wheel valves.jpg
     
    • Winner Winner x 2
    • Like Like x 1
    • Looks good! Looks good! x 1
  11. Andych

    Andych Well-Known Member Premium Member

    Messages:
    1,758
    Likes Received:
    1,080
    Trophy Points:
    798
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Sydney
    My Bike:
    1987 Yamaha SRX250, Honda 1975 CB400F
    When I had a good look at the tyres I bought I realised that I had clicked on a rear tyre instead of a front tyre and then looking up the specs the tread pattern is different front to rear. So I called the eBay seller (a Yamaha Dealer) and he arranged a new front tyre to come in and I shot over this morning to collect it.. even though it should have been $10 more he just swapped it over with no charge.. so a big shout out to Trooper Lu's Garage at Moorebank (Liverpool) and specifically to Marcus in spare parts.. Way more helpful than my local Yamaha Dealer..
    While there I had a look at the new R6, while I am not a big fan of the newer bikes.. this think looked really good..
    Anyway.. Blatant plug for Trooper Lu's is now over :)
     
    • Like Like x 1
  12. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

    Messages:
    1,419
    Likes Received:
    586
    Trophy Points:
    498
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    I use Trooper Lu's website for parts catalogue. It's one if 3 online parts catalogue websites that are continually open, along with this forum, daily Mass readings, TMR, PPSR, and 5-10 other sites... But a very bike bias!
     
  13. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

    Messages:
    1,419
    Likes Received:
    586
    Trophy Points:
    498
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    IMG_20180913_154049.jpg Took 2 weeks from order, not that I had time to work on the bike. Mc19. Paid the $30 for Australian seller to be quicker, too.
     
    • Like Like x 1
    Last edited: Sep 15, 2018
  14. my67xr

    my67xr Bike Enthusiast Staff Member Premium Member Contributing Member

    Messages:
    3,012
    Likes Received:
    1,762
    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
    Postie dropped off a bill for me today from BOC for my Mig gas, $237 for 1 year's rent !

    When i was at Bunning's today i asked them about getting gas from there, i was told it's a $200 deposit and that give's you a full D Size bottle.
    When it's empty you take it back and swap it over for $99 and that's it, no yearly rental.
    If you ever want to take the bottle back you can get your deposit back with the receipt.
    But the bottle is half the size of what i'm using now, my E2 bottle is $99 changeover.

    Only thing is i still have half a bottle of gas left and i don't really want to give that to BOC.
    Anyone in SA need some Argoshield Light with an empty E2 size bottle that need's a 1/4 refill ?
    Not sure if i can swap the bottle with someone else as the bottle's serial number is recorded against my name.
     
    Last edited: Sep 14, 2018
  15. ShaneP

    ShaneP Well-Known Member Premium Member Contributing Member

    Messages:
    1,419
    Likes Received:
    586
    Trophy Points:
    498
    Joined:
    May 12, 2014
    Gender:
    Male
    Location:
    Yeppoon
    My Bike:
    Yamaha FZR250 speed bike, Yamaha YZ/WR250F, Kawasaki ZX2R, Honda VTR250, DR350 (x 3.5), a couple of prototypes and whatever else.
    I thought BOC must have dropped the rental, too, everyone else seemed to. Even lose the bunnings bottles, it is cheaper than a year's rent!
     
  16. Murdo

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

    Messages:
    4,636
    Likes Received:
    3,760
    Trophy Points:
    923
    Joined:
    May 4, 2013
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Tamworth, NSW
    My Bike:
    Maico 250, Royal Enfield 250, CF 250 V5 and 650TK, XL250, CBR250, ZZR250 plus a few others.
    I went and bought an E bottle from Gasweld so I own the bottle and Just pay the refill charge (which is around $100) and no rental to anybody. BOC, Airliquide and others only want big customers with lots of bottles being rented and have no interest in anybody with only one bottle rental.
     
  17. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

    Messages:
    7,803
    Likes Received:
    4,635
    Trophy Points:
    943
    Joined:
    Jun 14, 2012
    Gender:
    Male
    Occupation:
    Troublemaker
    Location:
    North by NW NSW Oztralia - Tamworth
    My Bike:
    *Kawasaki ZXR250C *Yamaha FZR250R 3LN1 *Suzuki GSX250 *Triumph Bonneville 750 T140V
    How this made it from China without snapping in half Ill never know ... no protection at all :commando:

    IMGP1897 (Medium).jpeg IMGP1898 (Medium).jpeg IMGP1899 (Medium).jpeg IMGP1900 (Medium).jpeg
     
    • Like Like x 3
    • Funny Funny x 1
  18. Andych

    Andych Well-Known Member Premium Member

    Messages:
    1,758
    Likes Received:
    1,080
    Trophy Points:
    798
    Joined:
    Oct 6, 2016
    Gender:
    Male
    Location:
    Sydney
    My Bike:
    1987 Yamaha SRX250, Honda 1975 CB400F
    I had a few items arrive from Megazip. I cannot believe the size of the flippin box they put this stuff in.
    No wonder freight is so much
    f1b0949168fb96e9e8ac281e126fd396.jpg

    You can see the relevant size of the box compared to the products.

    915bdaa9d15dd28fcb8b8ffeefa2aab7.jpg


    Sent from my iPhone using Tapatalk Pro
     
    • Like Like x 2
  19. Murdo

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

    Messages:
    4,636
    Likes Received:
    3,760
    Trophy Points:
    923
    Joined:
    May 4, 2013
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Tamworth, NSW
    My Bike:
    Maico 250, Royal Enfield 250, CF 250 V5 and 650TK, XL250, CBR250, ZZR250 plus a few others.
    I received an air filter from CMS today and could have put four filters in the box instead of all the packing for one.
     
  20. Linkin

    Linkin The Apprentice Premium Member Dirty Wheel Club Contributing Member

    Messages:
    3,507
    Likes Received:
    2,050
    Trophy Points:
    943
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    ZXR250C
    Their shipping is pricey and the boxes are huge, but you can't deny that they don't get here fast.
     
    • Agree Agree x 1

Share This Page