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Post by hillbillybob on May 1, 2017 7:54:33 GMT -5
So, it has been 2 weeks now with no trouble. Has anyone else "plugged" their scooter tire? Success? Failure? Bad Idea? Good Idea?
I have plugged them successfully......scooter, motorcycle, car, even the pick-up. Keep an eye on inflation pressure...for signs of leakage, until you are comfortable it is sealing well. I have a Pirelli on the rear of one of my bikes... I plugged it on May 2, 2015.....never requires additional air during riding season. This tire had only 1200 miles on it when it picked up a 3" nail. If it had been a 5 year old tire, or had 5, or 6 thousand miles of wear, I would have replaced it.
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Post by hillbillybob on Apr 3, 2017 7:21:59 GMT -5
That was an easy fix. I know most people swear by Seafoam, and it's a good product, but being the old fart that I am.....I've used MMO for years and years. Not only keeps carbs or injectors clean, but also reduces or eliminates carbon build up on all parts in the combustion chamber. I add it to every fill up at the rate of 4/10 of an ounce per gallon. A small Stabil bottle, makes a nice dispenser with the measuring compartment built right in, and it fits under the seat well also. Wally World sells it for less than $4 a quart. I used $1.60 worth, covering 2,608 scoot miles last summer. This photo is a bit out of focus, but shows my scoots plug after 11,490 miles of operation. ![]() i1271.photobucket.com/albums/jj622/rks3526/b6245c71-13eb-4bf2-80ef-e58b001cdf12.jpg |
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Post by hillbillybob on Nov 21, 2016 8:18:18 GMT -5
This is exactly why I add Marvel Mystery Oil, at the rate of 4/10 of an ounce per gallon, every time I fuel up, and not just occasionally. My bikes, the scooter, lawnmower, ATV.......all get treated every fill up.
In 2015, my scoot covered 3,159 miles, was fueled 32 times, burned 35.4 gallons of gas, to which I added 15 ounces of MMO. Total cost of MMO for the 2015 season..... $1.98......pretty darn cheap.
Do a search on the stuff, you may just want to try it.
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Post by hillbillybob on Nov 10, 2016 18:58:35 GMT -5
No....it will never make it that far. I'd have to cover as many miles annually as I do now, until I'm 109 years old. Now that would be a milestone. We all know that these little plastic Chinese scoots are not built like a Honda, Yamaha, or Vespa. But they are not the troublesome, unreliable, pieces of junk, that some make them out to be.
Properly maintained, and ridden as intended, they can be a great little machine......for a long time.
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Engine Life
by: hillbillybob - Nov 9, 2016 9:48:34 GMT -5
Post by hillbillybob on Nov 9, 2016 9:48:34 GMT -5
Oh no.....just wrapping up my 5th year of operation. Should I be expecting my scoot to poop the bed?
I have yet to change the original spark plug, or any of the other ignition components. It uses no oil, and blowby is almost non-existent. I haven't needed to adjust the valves since the 2,500 mile mark, haven't cleaned or adjusted carburetor in 11,000 miles, when I up jetted it to compensate for the free flow air filter. I'm still running the same Visu Fuel Filter that I installed while doing the PDI when scooter was new. It still starts, idles, and runs great. My scoot is a long, long way, from being worn out.
How long will yours last?...... that's totally up to you.
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Post by hillbillybob on Nov 8, 2016 18:17:24 GMT -5
Vent the breather hose to the atmosphere. This link will help you understand what the other parts in question are for. If it were mine.....all that stuff would be gone. emissions sys |
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Post by hillbillybob on Nov 8, 2016 6:29:54 GMT -5
The crankcase ventilation hose normally runs from the valve cover to the airbox. You say you have no airbox.....so yours should vent to the atmosphere. Some people tie the hose to a high location on the frame, with a cheap fuel filter on the end of it, to keep trash out......others let them dangle, and drip. Still others make or install a catch can to collect the condensed material being expelled. Bottom line.....it must vent. From your photo, we don't know if yours is venting or not.....because we don't know where the hose on the other end of the small black canister goes.
If it is not a necessary vacuum hose, fuel line, or vent line (such as the crankcase, or fuel tank).....get rid of it. That's just my opinion....and what I did before ever starting my scoot.
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Post by hillbillybob on Nov 6, 2016 6:11:08 GMT -5
How sweet it is......gotta love those older Honda's. I bought my first one 51 years ago, this month......it's long gone, but still brings a smile to my face when I think of it.
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Post by hillbillybob on Nov 4, 2016 5:20:57 GMT -5
2011 Jonway, YY150T-29, purchased March of 2012. Miles covered to date... 11,292. and not a single breakdown....not even a burned out light bulb. The only parts that have worn out are tires and belts, and the original battery. It is truly a wonderment how well it starts, idles, and runs.....it has been a pleasure to own.
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Post by hillbillybob on Sept 2, 2016 19:07:53 GMT -5
And......quit banging through potholes.   |
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Post by hillbillybob on Aug 30, 2016 5:44:54 GMT -5
Your float is sticking for some other reason.  * is a warm day in our part of the world, but would be considered a cool one in the south-western states. Have not read of scooters from there running gas all over......and I have run my scoot in  + degree temps without any trouble.(We've had 24 days over * this summer, in Western NY) I still say that % of carb problems are ethanol related. I upped my main jet to a 115, when I went to the K&N airfilter over 4 years ago (10,400 miles ago), and haven't had to touch the carb since......never even cleaned it. But...I burn non ethanol only, and add 4/10 of an ounce of marvel mystery oil to every gallon of gas I put in the tank. Not only with the scooter, but my 3 motorcycles as well. An ounce or prevention.....is worth a pound of cure. (but in this case, it's only 4/10 of an ounce) |
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Post by hillbillybob on Aug 25, 2016 6:01:38 GMT -5
Welcome oldcoot, nice scooter ya have there. You will find there are a few of us geezers on this site, who started with motorcycles decades ago. (My first bike purchase was in the fall of '65')
The 'twist an go' bike does seem weird at first, but will grow on you quickly. I still have 3 other units with a brake pedal under foot, and a manually operated clutch.......but I enjoy riding the little 150cc scoot just as much as the larger machines. It is my ride of choice for morning coffee runs, which normally run about 30 miles.
Congrats on joining the world of scooters, ride safely, and keep us posted as to your scooting adventures.
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Post by hillbillybob on Aug 20, 2016 16:46:48 GMT -5
I have no idea if your Sym is something special......but torque values are determined by bolt/nut thread diameter, thread pitch, bolt material/hardness, dry or lubricated, etc, etc. I linked this chart to another forum, for one of it's members with a torque question.......thought I'd link it here too. Might be useful to keep a copy of it for future reference. Metric FastenerTorque Chart |
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Post by hillbillybob on Aug 20, 2016 6:26:38 GMT -5
According to a generic GY6 service manual, (of which there are many available to download) the front axle nut should be torqued from 5.0 - 7.0 kg/m, or 35 - 40 ft/lbs.......that's pretty close to what your mechanic told you.

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Post by hillbillybob on Aug 18, 2016 4:45:00 GMT -5
An air leak in the exhaust system will cause some popping when decelerating. Something as simple as a clamp not being tight enough.
I'd also check the vacuum line to the air cut valve on the right side of the carburetor. The whole purpose of that valve is to prevent exactly what you are describing. If it doesn't have a good source of vacuum, it doesn't work.
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* is a warm day in our part of the world, but would be considered a cool one in the south-western states. Have not read of scooters from there running gas all over......and I have run my scoot in 
+ degree temps without any trouble.(We've had 24 days over