Post by scrobins on Nov 2, 2013 14:17:57 GMT -6
Hi,
I'm a poor college student who can't afford a car so I bought a 2012 150cc Jonway (Chinese brand) scooter off the internet. I've had nothing but problems with it. I don't know very much at all about mechanical things, but I'm so poor I can't afford to pay someone to fix it every time it has new issues (which is frequently). I have been trying to figure all of this out as I go along.
It started out randomly bogging down during acceleration at high speeds (45+ mph), then gradually started bogging down at lower and lower speeds and more frequently until I couldn't even get up to 20 mph before it would bog down and shut off. It was going through a lot of oil. It wasn't leaking on the pavement, but I was always having to add a quart of oil every 2 weeks (even after switching from 10w-40 to 15w-40). I didn't see any noticeable smoke from the exhaust pipe.
I drained the gas tank and put new gas in it. I changed the fuel filter. I cleaned the carb twice. I replaced the spark plug twice due to carbon build up. I was doing all my regular motor oil changes (by mileage) and changing the gear oil at the same time just to keep things simple.
All of this only got me 1100 miles on the scooter (over 1 year). Most of the time I couldn't even drive it due to it not working. When it was drivable I would ride about twice a week.
In August, I got a tax return so I was able to bring it to a good motorcycle mechanic. He did a compression test, replaced the whole top end (pistons, rings, gasket, valves), set the valves, and cleaned and adjusted the carb. This cost me $500 but got it running like a top!
That was 3 months ago. Now I am at 2050 miles and it is starting to bog down again at 40+mph. I am devastated!
I have been babying this scooter like crazy! I have been doing oil changes once a month (changing gear oil too). I add a fuel injector cleaner to the gas tank after EVERY fill up. I let it warm up a good 5 minutes, or more, after starting the engine before accelerating. Every time I accelerate I take my time and accelerate VERY slowly (even though people honk at me or flash their lights at me because they want me to go faster). I make sure not to push the engine, especially uphill. I rarely drive past 40 mph. If I do it's because I'm going downhill. Plus, it has started to leak oil onto the pavement. It looks like it is leaking from a seal located in a vented box behind the valve housing unit and spattering all over the underside of the scooter, making it drip from multiple points.
I am at my wit's end! I can't afford to pay $500 every 3 months to keep it running. Am I doing something wrong? What is causing this trouble and how can I fix it? Also, once I fix it, how can i keep it from happening again?
Thanks for any and all advice!
I'm a poor college student who can't afford a car so I bought a 2012 150cc Jonway (Chinese brand) scooter off the internet. I've had nothing but problems with it. I don't know very much at all about mechanical things, but I'm so poor I can't afford to pay someone to fix it every time it has new issues (which is frequently). I have been trying to figure all of this out as I go along.
It started out randomly bogging down during acceleration at high speeds (45+ mph), then gradually started bogging down at lower and lower speeds and more frequently until I couldn't even get up to 20 mph before it would bog down and shut off. It was going through a lot of oil. It wasn't leaking on the pavement, but I was always having to add a quart of oil every 2 weeks (even after switching from 10w-40 to 15w-40). I didn't see any noticeable smoke from the exhaust pipe.
I drained the gas tank and put new gas in it. I changed the fuel filter. I cleaned the carb twice. I replaced the spark plug twice due to carbon build up. I was doing all my regular motor oil changes (by mileage) and changing the gear oil at the same time just to keep things simple.
All of this only got me 1100 miles on the scooter (over 1 year). Most of the time I couldn't even drive it due to it not working. When it was drivable I would ride about twice a week.
In August, I got a tax return so I was able to bring it to a good motorcycle mechanic. He did a compression test, replaced the whole top end (pistons, rings, gasket, valves), set the valves, and cleaned and adjusted the carb. This cost me $500 but got it running like a top!
That was 3 months ago. Now I am at 2050 miles and it is starting to bog down again at 40+mph. I am devastated!
I have been babying this scooter like crazy! I have been doing oil changes once a month (changing gear oil too). I add a fuel injector cleaner to the gas tank after EVERY fill up. I let it warm up a good 5 minutes, or more, after starting the engine before accelerating. Every time I accelerate I take my time and accelerate VERY slowly (even though people honk at me or flash their lights at me because they want me to go faster). I make sure not to push the engine, especially uphill. I rarely drive past 40 mph. If I do it's because I'm going downhill. Plus, it has started to leak oil onto the pavement. It looks like it is leaking from a seal located in a vented box behind the valve housing unit and spattering all over the underside of the scooter, making it drip from multiple points. I am at my wit's end! I can't afford to pay $500 every 3 months to keep it running. Am I doing something wrong? What is causing this trouble and how can I fix it? Also, once I fix it, how can i keep it from happening again?
Thanks for any and all advice!
..BAD TO THE BONE..
