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Post by scooter on Nov 2, 2014 1:01:29 GMT -5
in my opinion, anything electronic on a scooter will fail. scooters are designed to fail, planned obsolescence at it's finest. is there anyone on this forum that's had no problems with their Chinese scooter at all for 10 years? i don't think so. I've seen the way they are manufactured, I've thought to myself, this could be made a lot better with this a bit thicker, or this with a metal support through there. the truth is, it's a scooter at the end of the day. it's not a motorcycle or a car. its service life is only about 5 years and that's why it's so cheap. with the exception of these big maxi scooters like the T max and the Burgman Yes, I think the price has a lot to do with why they fail and fall apart so easily. If they were better built, they would be Hondas. hehe. (No I have not ridden or even had a close look at a Honda Scooter but their motorcycles are excellent IMO.) I try not to worry about failures too much. They are easy and cheap to fix. So far I have had terrible luck with the CVT, mostly due to buying two of the worst made belts ever and possibly a factory reject variator. I have also replaced two broken spark plug boots and a kill switch that started sticking after just a few months. I assume the racing team's EFI used an electric pump. I don't know how long one will last but for 10-20 dollars, if you get a year out of it I'd say you got a good deal on it. My biggest concern is that an electric pump needs power before the bike is started, so if you have a dead battery, that could be an issue. I'm seriously considering making scooters my next career. People here are broke, they need cheap transport, and these scooters need regular maintenance, or else.  Back to the ram air intake, I wouldn't be afraid to try it. Still, my bike seems to have almost as much power as many of these scooters with upgrades. I think I'll just move up to a bigger bike soon, and hopefully on to a Honda Silverwing or a Suzuki Burgman later. I like the Burgman because it has an electronic CVT and I think that's the only way to go if you want to maximize CVT performance. |
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Post by scooter on Nov 1, 2014 21:19:55 GMT -5
oh this is a fuel injected engine so it doesn't rely on vacuum pressure. it's more like forced induction and this is a professional racing scooter that's been made by the Dunler racing team. if anybody has any ideas on how to recreate this effect using a carburetor i'm all ears. i think a reverse turbocharging effect can be created by altering the valve timing Like RCQ said, you could switch out the vacuum operated pump for an electric one, and you can use this air ram thing, right? |
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Post by scooter on Nov 1, 2014 21:14:30 GMT -5
As is the canopy can't handle high winds 25-35mph it starts fighting you so enclosing the sides with canvas it acts like a sail and can push you over in heavy winds. lol Time to take it up a notch with some active stability surfaces.  Or two notches with this gyro stabilizer: www.gizmag.com/lit-motors-c1-self-balancing-motorcycle/21002/ Stands up by itself! |
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Post by scooter on Nov 1, 2014 19:24:54 GMT -5
It seems like that would make the intake lose vacuum. The vacuum goes higher as you restrict the intake air flow. Now you'd not only have an open plenum but a pressurized one. That seems like it would reduce the vacuum by creating positive pressure in the intake.
Looking at it, it doesn't look like it would do much ramming of air, even at 60mph. Maybe I am not understanding the concept.
That is very nice looking metal work BTW.
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Post by scooter on Nov 1, 2014 19:05:44 GMT -5
You are welcome. I'm glad to be of any help.
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Post by scooter on Nov 1, 2014 18:19:59 GMT -5
Thank you. I didn't see any fuel coming out of it, although someone had rerouted the lines. They had put the fuel inlet hose onto this forth nipple and it was letting gas flow with the engine off. I put the inlet line back on the inlet nipple, so now fuel only comes out when the engine is turning over, and I just don't know what the 4th nipple is for. I'm assuming it's a vent, although as you can see, it can be used as a petcock bypass if desired.
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Post by scooter on Nov 1, 2014 17:54:01 GMT -5
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Post by scooter on Nov 1, 2014 16:01:31 GMT -5
scooter Wile those are awesome ideas, I have to wonder if changing your exhaust on the fly like that wouldn't mess with how your engine runs in either direction, rich or lean. Little changes on these little engines have big effects on how the run and how they have to be tuned. I see they sell things similar to this online. They are called remote exhaust valves or exhaust override valves. Some people say they have something to do with power but others want them to control noise. www.ferrarichat.com/forum/458-italia/350955-capristo-exhaust-remote-override.html |
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Post by scooter on Nov 1, 2014 15:18:55 GMT -5
Rode him in the rain last night. (usually not a problem) This morning went to start it. Hit the button, the starter momentary hit, then everything went dead. I still have turn signals, but I don't think I have brake lights. No clicking sound. Switch on brake handles working ok. (no kickstand switch) Tried jumping the solenoid = nothing. had to get to work so I am trying to figure out what to look for when I get home this evening. Suggestions would be helpful. Kev Have you checked the canuter valve? They've been known to cause those exact symptoms. If your canuter is okay then you could be low on blinker fluid, but I doubt that's it or your turn signals probably wouldn't be working. |
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Post by scooter on Nov 1, 2014 15:01:28 GMT -5
Well, anyway, the scooter is back together (this time with the arrow pointing to exhaust) and as soon as the battery is charged will give it a try. Hope the issue is resolved!  Alright! Looking forward to seeing you back in the game, RCQ! |
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Post by scooter on Nov 1, 2014 14:57:43 GMT -5
I will let you know when i learn it. anyone who is important here can speak English. anyone else is just a number. until they hit you on their scooter, then they are more important than you. even if it was 100% their fault, you will pay for it. Wow. They sound a bit racist or at least nationalist. Sounds like my online Spanish teacher. She couldn't speak English very well, which I found interesting to say the least. |
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Post by scooter on Nov 1, 2014 13:14:14 GMT -5
This build sounds expensive, CCR. Is it? Also, if you don't mind me being nosy, what kind of work were you doing in Taiwan? it is an expensive build. but it should save money also, and add more value to it. I'm working here as an English Language teacher. but designing, manufacturing and building engines is the real reason i wanted to come here. i know my spelling and grammar is not [perfect on here, but i'm lazy and it would take too long I can't imagine learning Chinese. The character writing alone looks incredibly difficult. How long does it take westerners to learn Chinese and how long does it take Chinese people to learn English? |
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Post by scooter on Nov 1, 2014 13:09:21 GMT -5
I have a four way petcock pump here, what I'd like to know is, what the heck is the 4th line for? I have googled this a dozen times and can't get a stupid diagram of a 4 way pump with directions. I know one is fuel in, one is fuel out, one is vacuum, but what is the fourth one? Is it a vent? Do I need to connect a check valve to it or run a hose from it to above gas level? Thanks for your help.  |
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Post by scooter on Nov 1, 2014 10:14:23 GMT -5
Ok so lets go back about 1 year. I had been living in Taiwan for just over a year and i had just got my scooter licence. I had a new job which was outside of the city I lived in and so it was time to start scooting. So I (actually somebody else who had no idea SHE was doing ) spent 25000NT (500GBP or 822USD) for a 2004 Yamaha RS100. (just google jog100 or xc100f)
This build sounds expensive, CCR. Is it? Also, if you don't mind me being nosy, what kind of work were you doing in Taiwan? |
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Post by scooter on Oct 31, 2014 23:03:59 GMT -5
And why would he not get any oil to his wrist pin it is a splash system there are no oil passages going up to the pin. Unless maybe he ran it without any oil. So lets just say the boogie man did it and rebuild and hope he does not mess it up again. That's what I was asking, as I don't know how it gets oil. I assumed it had a channel in the crankshaft. |
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