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Mech

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Posts posted by Mech

  1. Yup.. Here it's big business that does nearly all the exporting, and they pay most of the taxes.. and dividends. And it's the taxes, corporate and private, that give us a free health system, education, social security, and all the infrastructure...

    And we have good relations, and cooperative trade arrangements, that benefit everyone involved.  

    Not only that.. People like Kiwis.. We go on peacekeeping missions.. armed with guitars, not guns..  Haha.. seriously.. We send out male and female peacekeepers and they leave their guns behind..  And it works, where years and years of armed attempts have failed..

    And we've got the "America's Cup"... hehe.

     

    I'll shut up now...

  2. Well Quad.. It's because your ex-president thinks we shouldn't be doing trade deals, that's one reason, and because he seems hell bent on starting world war three.. That's another..  Those things effect us.

    The world's a small place now, the idea that we should all be isolationists and put our country first.. I think those days are gone. Most of the world wants a world of peace and trade. Most of the world's getting along fine doing those things.

    Mostly though, the reason I commented, is because of the animosity he seems to be breeding in your country. I think that's a shame.

     

     

  3. Gee you guys.. And that's what I was talking about.. division, animosity.. It's what T has been breeding ever since he ran the first time. And the hoped for animosity and division he's been trying to breed isn't just within America, it's a worldwide attempt.

    He's taken America out of world trade negotiations, and suggested that we all(who all get along and do trade) shouldn't be because it disadvantages America.. Well hell yeah it does if he won't negotiate.. but he claims to be Mr Negotiation.

    He's pulled out of the world's peacekeeping body. the U.N., because he reckons it's bad for America.. But America has the longest history of anyone for causing wars, in other people's countries...

    He's pulled out of and sought to discredit the world health organization. He's alternately told you Americans that the virus is a Chinese plot, a biological weapon from a lab over there, and then in the next breath that's it's nothing, and don't wear masks.

    He's tried real hard to provoke a war with North Korea, he's accused the Russians of interfering in American politics(while America has a long history taking of out rulers and installing new people of their choosing all over the world for decades.)

    He bad mouths, and started a trade war with China, which I hear has done your economy no good.

    He's been supporting racial disharmony and preaching anarchy within your country, then trying to impose martial law, he's inviting a bunch of red-neck neo-nazis to "stand by and stand ready", and now, even as he leaves, he's trying his best to discredit the democratic process, to destroy it, and for just under half of your citizens to rise up and take the country back and to put him in charge again...  It's treason.. from start to finish.. and even now as he's going down he's pardoning anyone that's aided him in this treason.

     

    Yeah Dave from B.C., we outside of America have always realised that America doesn't recognise countries outside of America, that vast parts of the population don't even know where New Zealand is, and that they think America is a power unto itself, able, qualified and at liberty to do what it wants.. And that is scary and worrying enough, without this new advocacy of the breakdown of law, of the destruction of the institutions that maintain law, of the discrediting and attempts to subvert the democratic process, and the attempts bring about the downfall of what was once, despite it's arrogance, a great country.

    I don't think the man's an idiot, I think he has an agenda. I think he's working in his interests, and is and will sell out his own country as quick as he'll do anything to turn a buck. I think he does have an agenda to sell out his country, probably for some financial gain, but given the perversity of the man, it could just be that.. perversity.. because he hasn't been able to get what he's wanted some time.. more money perhaps, some sort of power he needs because he's a pathetic individual and knows it in his heart.. I can't comprehend the depth of it.. but it's perverse and fickle... The country that's done him so well, he's destroying.

    And what do the people complain about.. Their health-care plans.. 

    It's treason and he should be charged with it..

    The American people should have more pride in themselves and their country than to allow it.

    I have no axe to grind, but that's how it looks from here, and you know,  I suspect it's how the majority of the people of the world see it.. 

    We in New Zealand, we are doing fine, because we have a great leader, a leader born to the role, like a Kennedy, someone born into a household where politics and diplomacy and governance was discussed at the dining table all their life.

    The American people should look long and hard at themselves and at what they have got.

    Rant over..

  4. Hi all... Interesting read.

    It's a kiwi from New Zealand here, and so not really any of my business, and I'm not really up with all the play, but as an outsider looking in, and since he seems to be the cause of such animosity, not a good thing in itself, I'd like to chip in.

    Ever since that Trump got in, it seemed to me that he was hell bent on taking America down in every way he could.. I'm glad he's out.. he's a threat to your country and the whole world in my opinion.. I hope you all get over the strife he's caused as soon as possible and that he get's thrown out of the country for good....  He's one nasty piece of work as far as I can tell, and with an agenda..

    Send him to the Russians... it sounds like he likes them.. or perhaps to his buddy Rocket Man.. send him anywhere but here... we sure wouldn't want him.. He's just trouble.. with a capital T .

    And I hope that vaccine works like we all hope..  It's sure looks like it's been a hell of a few years for you guys, especially the last one.  Good luck with it all. 

    • Like 1
  5. The cooler should have signs of oil, but it might have drained away by the time you got to it. You need to clean that cooler out, and when you put the motor back together you want to leave the return of the cooler off and in a bucket to check it's flowing and to flush it out with clean oil.

    For one crank it's barely worth setting up the stuff you need, for ongoing work it's cheap though. You'll need a thick steel plate(14/16mm) with a wide slot gas-axed in it that will fit between the two crank webs and around the con rod nicely, a dti gauge and stand for it(not too dear and handy for lots of stuff), and some sort of set up that has two "centers". Centers are just round rods with 60 degree tapers on the ends that fit into the ends of the crank so you can spin the crank on them without any wobble. The centers don't have to be anything fancy at all, you could just grind them with a bench grinder if you are careful. To do the pulling/pressing you can use threaded rods or a hydraulic puller and a bit of box section or chunky angle iron, or a twenty ton press. To set up a "center" arrangement you could make the two centers and fit them into the gudgeon pin holes of two big conrods off some truck or old car, then use the cap holding bolts and two steel plates to clamp them to a long steel strap or angle iron, the idea being that you can slide them along the strap to get the crank in between the centers and then together so the crank spins by it's ends between the centers. They need to slide nicely so you can get them a bit tight in the ends of the crank so there's no wobble, and you need to be able to get the crank in and out easily because you are going to need to take it out of there after every measure to hit the crank with a hammer to do the adjusting, then back in for another measure.

    You'll also need some drills to make holes in the thick steel plate for the 14/16mm threaded rods.

    The thick plate with the conrod slot has to be wide/big enough to poke out the sides of the crank far enough that you can drill two holes that will be directly in line with the crank pin you want to press out, or so the two legged puller can grip it on opposite sides of the crank pin. I use a round plate about 160mm diam, but it could be square.. As long as it's strong still after the slot is in it. Once all these things are arranged you can do most cranks.

    The actual work involved to overhaul the crank is quite minimum. As little as an hour and a half once you've done a few and got the idea about what you are doing and  how hard to tap them to align things.

    • Thanks 1
  6. In that last post it sounds like it's better in higher gears now, but earlier it sounded the other way around... better in low gear. Has it changed ?

    And.. you have changed the spark plug now ? You mentioned you were planning to.

    It doesn't sound like the plug because plugs mostly play up with high compression and engine load, which is highest at mid or lower revs, and higher gears rather than lower. . The blackness on the plug seems to mean it's getting plenty of fuel, perhaps just not firing every time and so burning heaps when it does..  If the motor was flooding for some reason, like the carbies float chamber vent/hose being blocked, it would sort of burble and stumble/surge and not rev,  but not really rev cut. Have you driven a flooding  motor before ? They run and sound different to one starving or missing from spark issues. If it's a diaphragm type carby, have you checked the diaphragm on the slide, and also the needle in the slide, I've seen the needles not have their clip on them for some reason or another and the needle could jump up and down in the slide.. and they ran erratic and rich.

    And you say a rev limiter.. rev limiters cut the ignition momentarily right, so the engine goes from full power to cut, then abruptly back to full power.. and the bike jerks and bucks.   That is what it's doing right.. It's how I read your description.. as opposed to getting to high revs and then fading the power away .. If it's fading the power away/going flat, that's a whole different thing.. Maybe flooding.

    If it's the rev cut sort, the voltage regulators can cause that on some bikes. They are meant to get to a certain voltage and then reduce the voltage by shorting a certain amount of it out through a resistor to ground, but still let a bit of power through to keep the voltage about thirteen volts. If there's no battery or a bad wire the regulator sends some power to earth, then detects that that hasn't lowered the voltage enough and so shorts it fully to ground, killing everything momentarily till the revs and volts drop again. Sometimes putting the headlight on will let you get a few more revs out of them, which gives a clue or confirmation..

    The sitting for a month and then having the problem sounds sort of like a clue perhaps, but we don't get freezing conditions here. Perhaps someone knows of something that happens when things freeze.. like fuel or electrical things that go bad.

    Hope that gives you a few more ideas to consider..

     

     

  7. Couple of general rules..

    If they spit/backfire out the carby, it's usually too lean, so air leaks into the manifold, lean mixture, tight inlet valve etc.

    If they backfire out the exhaust while going downhill or with the throttle off, it can be an air leak at the head to exhaust  connection or back between the front pipe and the muffler.

    If they backfire out the exhaust as you are throttling on, it's likely to be caused by an intermittent lack of spark or incomplete combustion, which is letting unburnt gases into the exhaust. Then you need to check the ignition system.. and secondly the mixture.

    Just general rules... but it's mostly right.. But hey.. for every rule, there's an exception !

  8. Kuba... That jet you changed.. When we are fine tuning bikes we adjust the size of that jet by 5 at a time normally, so like from 180 to 175. Going from 180 to 140 is a huge change and may make the bike run far far too lean at full open throttle. Running mixtures lean makes bikes overheat very quickly. They might know you need that 140, or perhaps you've read in the manual it does.. I don't know.. So..

    That jet controls the mixture at full throttle and you need to be very careful about doing that(running full throttle) until you are sure it's going to be ok.

    Before you change that though you have to check that the throttle slide's needle is in it's correct setting. It's best to have a new spark plug in there to do it, or a nice clean on anyway. You do the test by giving the bike a run on a long flat road for about twenty or more seconds at more than one quarter throttle, and less than three quarters throttle. The nearer three quarters the better. At the end of the long straight you have to pull the clutch in(if it has one), or throw it into neutral, and switch the throttle off immediately. Don't let it go into overrun or idle. Roll to a stop and then take the spark plug out and see what colour it is. It should be starting to colour up the new whiteness. If it's too white the needle jet in the  throttle slide too low. If it's black or dirty, the needle jet in the slide's too high. Adjust it one notch down or up with it's circlip and try the test again. Keep testing and adjusting until the sparkplug is a nice light tan brown or grey colour. This adjustment will probably already be correct but you have to be sure before you do the full throttle adjustment.

    Once that setting's correct you do the same testing and adjusting process but at full throttle. So full throttle for at least twenty seconds(If you can, it can get tricky, find a quiet road), then out of gear and switch the motor off as you are knocking it out of gear. Roll to a stop and check the colour of the plug. It should be starting to show a light brown/tan or grey colour. If it isn't, you need to change that main jet, the 140 one. Depending how (presumably) white it is going to be you are going to have to make a judgement call on how much to change the jet by. As I say five or ten is a good change.

    Be careful not to run it to hard if it is lean.. It's better to err on the side of rich rather than lean.

  9. The crank is in three parts, left, right and the pin. You have to replace the pin, because the rollers run on it, and the conrod because the rollers run in it.

    Getting it apart and together you might do with pullers and/or threaded rods, and a thick steel plate with a wide slot cut in it to go around the conrod, which is how I do them, but you need two centers or a lathe to spin the crank between, and a dti gauge to check it for runout and alignment. If you don't have the centres and dti gauge then it's better to get it done by a bike shop or precision engineer. And.. given the choices between engineer and bike shop, you're better off with the bike shop. The engineer will be scared of it and try to tell you it's a tricky business, the bike shop will be doing them all the time.. and will charge you a fair price.

    Yeah ignore the heat marks... the new rod when you get it will have heat marks from it's manufacture already probably. And the crank throws are just soft steel.. no worries.

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