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Post by scooter on Aug 22, 2015 11:01:09 GMT -5
Yes a wire spool gun set up on high a frequency AC welder will do it, again it's got to be super clean. Generally one needs to clean it again with a spool gun after each pass. Tig will not work for aluminum, that form of welding is for stainless steel and other iron/carbon metals. Tig is not hot enough where high frequency AC heliarc or even the spool gun you mentioned is if it is set up on high frequency AC is. While aluminum is soft it's melting point to be properly welded is very high. Also the alumaoy will work but you'll fry the gasket doing so. JR That's good news about the spool gun. I call a heliarc a TIG, sorry for any confusion. That's the thing I'm having trouble with when shopping for a machine. Some of them are TIGs that do aluminum and some don't, I assume because of the gasses they can hook up to, or the waveform, or the current, or AC vs DC, square wave, high frequency start, etc? (I've done a good bit of steel and stainless welding, and aluminum a few times as well. I also had machines someone else bought and I could ask how to set up the machine if needed. I feel confident that I can do the work, but I need to find a machine that fits my shop setup and price range. Which is cheap. Not ridiculously cheap, but I doubt I'll be buying a new commercial sized Lincoln or Miller machine any time soon. Plus I need something that can run on about a 240 30 amp breaker, I think. Not sure what the maximum breaker I can install would be.) |
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Post by scooter on Aug 22, 2015 10:53:02 GMT -5
I don't want to take a big hit on the sales price, over a serious issue, if I can help it. It's ugly but it's fast and otherwise roadworthy, as far as I know. I've already overcome two major issues, including that electrical nightmare I posted about in December or thereabouts. I may as well try to get the most money I can out of it for all of my grey hairs.  Plus I don't want it to "beat" me.  I want to win the "I fixed it and made it work good" prize. |
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Post by scooter on Aug 22, 2015 10:44:19 GMT -5
As a certified welder in all metals I can see only one way that you could weld it without pulling it apart and even then it would be touchy. I would remove the tire, get the scooter up in a position where you could comfortably work on it and the first thing of course is to clean it perfectly with a good high speed wire brush. Then I would find a correct size to fit the hole steel or even stainless steel bolt along with two oversized flat washers and bolt it on the broken ear of the case. Then with a AC heliarc welder I would a simple pass filling in very small amounts of aluminum at a pass. In fact I would wrap a wet rag around the case as close to the bolt as I could. I would let it cool after each pass. When it's filled remove the bolt and polish it up with a grinder. If it fried the gasket then of course you'd have to fix it but the repair would still be good. It's chancy but might work. JR Thanks. That makes the most sense. There's plenty of room with the wheel out of the way, and using wet rags will soak off a lot of heat, hopefully protecting the gasket. I have someone lined up with a spool gun. Can that be used the same way? I don't think I have ever used an aluminum spool gun, so I don't know how well it welds. I assume it comes out similar to a MIG gun weld on steel. I'm hoping there won't be a lot of impurities in the casting. In the mean time I am still looking at TIG machines. They are pricey for someone who might only use them a few times a year, but maybe I will get welding jobs with it and make up the cost. |
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Post by scooter on Aug 21, 2015 15:56:11 GMT -5
As a side note on the Bms bi metro,,, I was looking for performance parts for it and found a 150cc 4 valve complete balanced / blueprinted engine for it,,,,this could get interesting,,, if I can find one used with low miles or better yet one with a blown mill,,,, things could get very interesting in a hurry,,, The Bms bi metro: said to be "Powerful enough for men, but smooth enough for women." Its original name roughly translated to "the city scooter that goes both ways".    |
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Post by scooter on Aug 21, 2015 1:35:07 GMT -5
Thanks for the bone, OCG.  Live to Scoot, Scoot to Live. |
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Post by scooter on Aug 21, 2015 1:00:39 GMT -5
I think you're right about climbing back on a little soon  While you are making a FULL recovery. look over REALLY BRIGHT safety gear, and VERY LOUD horns! After my wreck I wore a safety vest every day until I put on my LED strips. Would you believe a big dually truck almost pulled out in front of me the first time I had it on? Brakes screeching and all. Talk about discouraging! I felt like a dorky looking crossing guard, and I had to doubt its effectiveness after that. People still kept puling out in front of me, too. People are just not able to handle all of this input any more. They want to talk with their friends in the vehicle, and play on their phones, and stare out the windows, and eat and drink, all while maybe putting a little effort into actually driving. I think the self driving car can't come soon enough for all of our sakes. These LEDs I put on are great, and have made riding 100% better. I guess nothing gets people's attention nowadays like a little "bling".  |
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Post by scooter on Aug 21, 2015 0:46:09 GMT -5
Broke my bloody leg again! Same fracture, tibia and fibula, the rod I got installed last time bent, I had it replaced. A cager on the phone turned right in front of me on a corner without paying attention, I laid the scoot on it's side to avoid a direct hit but it fell on my leg again!  The cager left the scene without noticing he caused an accident, he was to busy talking on the damn phone  This time the scoot didn't suffer much damage, just a few scratches and a few cracks on the plastics. I would like to make a suggestion, Ricardo. I was in a wreck last year. I was hyper-vigilant and all of these people eeking out into the roads and not noticing me were really freaking me out, so I put on some LED strips in legal amber color, and a white strip under the front wheel well. People say they can see me a mile away, and I have noticed very few "oopsies" since I put them on. I feel a lot safer now, and I can really see the difference it has made. If anyone wants help with them, I have some strips and can prepare them for installation on your bike.   Because other drivers may just see your headlight/s and not much else, they may not be able to process the visual cues they need to make a proper assessment of your distance, leading to the illusion that you are farther away than you appear. They may assume you are a vehicle that is far away, and ignore you as a potential threat. I think people can get a better reading of where and what you are as you are coming down the road with these lights on. You get their attention, and they can see more of your actual size and shape because of the positioning of the light strips. Even in daylight, the lights show up very well against the body panels. This helps them to not run over you. |
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Post by scooter on Aug 21, 2015 0:14:43 GMT -5
I've often wondered if the float could be replaced with a ping pong ball. If mine goes bad, I'm going to experiment! I got lucky and saw a dead fuel unit on the table at a scooter shop. I asked for it, and I received, for free. |
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BBK Tuning
by: scooter - Aug 20, 2015 23:37:46 GMT -5
Post by scooter on Aug 20, 2015 23:37:46 GMT -5
Hello everyone this is my first post. I was hoping to get some opinions on some problems I'm having perfecting my scooter since installing a 100cc (83cc) BBK on my 139qmb GY6 scooter. These are the mods I have done so far: -100cc BBK (includes  jet and 8g roller weights) -high flow open air filter -92 size main jet -8g roller weights -Aftermarket performance CDI and ignition coil -high flow fuel filter Originally when I installed the BBK I was getting rich running conditions with the stock air filter. So I installed an open cone air filter. This helped a lot but actually caused the bike to be running lean. On my first ride I could get up to about 30mph easily and actually pretty quick before the engine would start surging. Sounded to me like I was leaning out at the higher rpm. So I up jetted the carb to 92 (from ), installed the performance CDI and coil, and the 8g roller weights, and the high flow fuel filter. This helped alot, I can now get up to about 35-38mph before the surging problem starts again. So now I am stumped, I'm not sure where to go from here. So I am just hoping that someone could give me some suggestions to fix this problem. If anyone has any suggestions or could help I would appreciate it!! "So I up jetted the carb to 92 (from ), installed the performance CDI and coil, and the 8g roller weights, " What was the weight previously? Have you checked or replaced your vacuum lines and checked all of the vacuum connections to make sure your vacuum levels are sufficient to operate the fuel system? Is your filter letting in too much air, causing a low vacuum situation at high RPM? A low vacuum condition will hurt the performance of a vacuum operated fuel pump or petcock so that not enough fuel is delivered at high RPM. Perhaps try the stock intake again and see what happens. |
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Post by scooter on Aug 19, 2015 23:11:35 GMT -5
up scale
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Post by scooter on Aug 19, 2015 22:34:47 GMT -5
I need some welding done. I am trying to get a bike in working order that is not hot on looks, so I don't want to spend a lot of money on it.  I can - Buy a new crankcase. I don't want to take it apart, let alone buy a new one.
- Buy an expensive Aluminum welder. I can use that for other stuff.
- Take the bike somewhere to be welded. Huge .
- Put it back together and tell the next owner they can take their chances or get it fixed.
- Use Alumaloy! Too good to be true?
6. Last edit: Use my mig welder with Argon and aluminum wire. Done. Anyone ever tried it? |
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Post by scooter on Aug 19, 2015 20:05:50 GMT -5
Hello all, Have a 150cc gy6 scooter. Scooter runs great, but after its warmed up it doesn't run. Either won't start or will die when I give it gas. Any ideas guys? I have played alot with the jeting, it has an intake and filter with stock exhaust, right now at 110 or so jet (sea level). I'd think it was running too lean without the enrichment circuit turned on, so maybe a dirty carb hole. If not that, then I'd think maybe something getting hot and changing in a bad way. Perhaps a check of the valve clearances. You might try starter fluid when it won't crank, to see if it's a fuel starvation issue. |
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Post by scooter on Aug 19, 2015 19:06:36 GMT -5
Now she and I both have tears in our eyes. |
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Post by scooter on Aug 19, 2015 18:58:42 GMT -5
I present to you the DE-NUTTER SMILE!!!!!! He's good. Next stop, Alaska, with a load of ice! |
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Post by scooter on Aug 19, 2015 15:56:54 GMT -5
Il Bello. That's Italian for Handsome Boy isn't it? |
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The cager left the scene without noticing he caused an accident, he was to busy talking on the damn phone 
jet and 8g roller weights)