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Post by bigmac on Aug 23, 2013 20:01:43 GMT -5
That's good. Wasn't sure if you had been too busy to added it or didn't want my joke in the gallery.
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Post by bigmac on Aug 23, 2013 19:44:35 GMT -5
Yes, it appears that the length matters. The longer chokes caused the engine to shutoff less than a minute after starting. With my old carb's choke the engine doesn't have any trouble while warming up.
However, I still had a problem after putting on the old choke. The engine idled rough after being fully warmed up and kept stalling. The petcock was the only part I had not checked so I replaced its vacuum line with a clear tube. Moisture from gas started to build up inside the tube after running the engine for about a minute. I then plugged fuel line directly from the gas tank to the carb just to be totally sure. And yes, the engine idled fine and didn't stall.
If the petcock was fine, I'm guessing the engine wouldn't have had any stalling issues with the other electric chokes after being fully warmed up.
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Post by bigmac on Aug 17, 2013 15:27:06 GMT -5
I got the electric choke off today. I compared it to the one on my old carb and noticed that the ends were different lengths. The right is the one from my new carb and the left is from my old one:  I'm not sure if this caused a problem. The other electric choke I have looks the same as the choke from the new carb in a side by side comparison. I think I'll use it and see if it works. That way I can find out if the length difference matters. |
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Post by bigmac on Aug 17, 2013 1:51:57 GMT -5
I could use either the choke from my old carb or another one that I got awhile back. The new carb is basically identical to my old one. All the rubber parts on my old carb were dry rotting and some screws were stripped and stuck. The rebuild kits I saw were around $15 while whole new carburetors were around $25. Plus the carb came with some fuel line and a fuel filter. I decided it'd be easier to spend the extra money than deal with working on the old one. No regrets with that decision though. Gone over 200 miles now and it's working great, apart from the choke, of course. The spark plug indicates proper running conditions. newbscootdudeMay I ask where you got steel screws for a gy6 carb? The selection was poor last time I was at a hardware store looking for nuts and bolts for my scooter. I'm pretty sure I wouldn't have had any luck finding matching screws had I looked. |
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Post by bigmac on Aug 16, 2013 19:36:54 GMT -5
The electric choke that came already attached to my replacement carburetor seems to heat up too fast. It always seemed to not work right but now it really appears to be off.
I have the idle speed set so high that the bike's rear wheel will spin right after starting. It will remain running until I plug in the pin connector for the electric choke. The idle slows within 30 seconds or less, then about 15 seconds later the engine stalls. The electric choke will already feel warm to the touch afterwards.
My old electric choke never heated up that fast nor stalled the engine after fully kicking in. Luckily, I have another electric choke on hand. Though unfortunately a screw that holds on the choke is too tight and stripped. Now I got the task of removing it before seeing if another electric choke will work. Seriously, those screws on gy6 carburetors seem as soft as lead.
Do these electric chokes usually have such problems?
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Post by bigmac on Aug 15, 2013 20:14:01 GMT -5
Is my scooter's picture alright for the banner?
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safety
by: bigmac - Aug 15, 2013 20:07:16 GMT -5
Post by bigmac on Aug 15, 2013 20:07:16 GMT -5
It's a law that a motorbike rider wear a DOT approved helmet in my state, so I always got a helmet on. A brain injury is scary stuff so I would highly recommend playing it safe and wearing one. As for other gear, I'd also recommend wearing a jacket and gloves since people tend to use their hands and arms to break a fall.
I wear a black half helmet, black leather motorcycle jacket and black leather fingerless gloves. Though sometimes I skip on the jacket if I'm going to a nearby store so that I don't look like an aggressive biker guy when I enter. The helmet and gloves fit under the scooter's seat but not the jacket.
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Post by bigmac on Aug 9, 2013 20:53:49 GMT -5
I personally think Craigslist is a good place to look for scooters.
When the RMV here in MA wouldn't give me a moped sticker because my 50cc scooter was supposedly a "limited use cycle" I looked on Craigslist for another scooter. Some nice scooters are being listed on there every so often.
Luckily, I tried another RMV and a person working there gave me a sticker. I have a Roketa model MC-07S-50. The Roketa models MC-07-50 and MC-07K-50 are on the list as "limited use cycles" so the first RMV I went to said mine was limited use, too.
Here in MA, the RMV lists some 50cc scooters in the motorcycle category. So your 50cc scooter will need all the same paper work that a large motorcycle would need.
Anyways, good luck finding your new scooter.
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Post by bigmac on Aug 3, 2013 13:27:21 GMT -5
I wanted to test ride the scooter after doing some work to it and took a photo at McDonald's since I was going by the area. I figured it would be a cool and funny idea with my user name being bigmac.
It was tough to take that photo though because I didn't want any cars or people in the background and that McDonald's is in a busy shopping plaza.
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Post by bigmac on Aug 2, 2013 13:41:27 GMT -5
Here is mine.  |
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Post by bigmac on Jul 31, 2013 23:56:08 GMT -5
While lubrication is important for every motorcycle engine, newly-built motors usually require an extra supply of oil to reduce the friction and heat that occurs during break-in. This is because the "new" surfaces are actually rough. Eventually, after break-in, these surfaces wear smooth, which in turn reduces the amount of friction that causes excessive heat buildup inside a new engine. To insure that the pistons get proper lubrication during the break-in process, the builder must put a crosshatch pattern of fine scratches on the cylinder walls. These tiny grooves act as oil troughs and are put in the cylinder walls by running a honing tool up and down the cylinder bore. Because your engine is new, perhaps oil is being used up in the break-in process. My guess would be that any excessive oil usage will slow as your engine's cylinder wears smooth. I recently installed new piston rings and piston on my scooter and have found that the engine does run hotter. I didn't redo the honing of my cylinder though, so I'm a bit worried about how well the rings and piston will break-in. Also, I've noticed that my speed has decreased about 5mph since installing the new rings and piston. I'm wondering if because the engine is so small the extra friction from the new rings against the cylinder walls is reducing speed. |
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Post by bigmac on Jul 28, 2013 19:59:24 GMT -5
Well, she just started walking a few months ago so she's not yet quite ready for these toy scooters. Those do look fun. I'll probably look into getting her one in the future. I was thinking of something small that I could put on my desk though. I searched the Toys R Us website and found a brand called "Maisto" that makes lots of toy motorcycles. I did an image search for "Maisto scooter" and found that they do actually have scooters:    I never seen these at any stores before. I'm guessing they were released before I started looking, or are simply hard to find. |
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Post by bigmac on Jul 28, 2013 17:55:40 GMT -5
Has anyone ever seen a toy or model scooter?
A friend of mine has a kid and we often take her to Toys R Us. I look every time for toy or model scooters when I’m there, but never see one. There are Kawasaki Ninjas, Yamaha dirt bikes and BMW motorcycles, but not one toy scooter.
I know toy scooters would probably not sell very well, but still, I'm kind of surprised that no toy company seems to have a scooter out there.
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Post by bigmac on Jul 18, 2013 16:06:42 GMT -5
It's all fixed, but no changes to the valve clearances were made. All I did was remove the cylinder head and its valves for a cleaning.
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Post by bigmac on Jul 17, 2013 14:33:49 GMT -5
Yeah, the tapping/pinging was much louder than it was before. The scooter's original valve clearance was .002 for both valves and there weren't any issues for the first 2,000 miles.
After those 2,000 miles, I started to experience stalling after the engine had warmed up. That's when I first adjusted the valves. I checked them before adjusting and found both to be .002. The stalling turned out to be due to the carb flooding though. So the valves have been set tighter than they are now without any issues.
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