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Post by gatekeeper on Apr 12, 2013 17:27:44 GMT -5
Yes that is fine. I know the manuals usually call for .05mm but I think the is a bit tight. I set mine at .1mm. (around .004 inchees)
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Post by gatekeeper on Apr 9, 2013 18:04:10 GMT -5
It looks like your standard generic 150cc that goes by many names. With a two year old battery (not a 9 volt system, it's 12 volts) and cosmetic damage, I think $600 is too much. But that is me.
They are basically good scooters. It all depends on the kind of care it's had over it's life. If you want to own a chinese scooter you need to be able to work on them, or know someone that can. If you want to just be able to always turn the key and go look at the japanese offerings.
I have three chinese scooters and I love them. But then I like to tinker with them too.
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Post by gatekeeper on Apr 9, 2013 15:36:38 GMT -5
Probably needs a valve adjustment.
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Post by gatekeeper on Apr 9, 2013 15:18:28 GMT -5
why spend $5 on a special tool. Don't some vale caps still have the grove in em to tighten the stem? I don't see those around much these days. I think they do that on purpose to make you buy the tool.  |
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Post by gatekeeper on Apr 9, 2013 15:11:56 GMT -5
Cold air makes the engine run leaner. Adjust the fuel mixture to richen it up.
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Post by gatekeeper on Apr 9, 2013 6:36:34 GMT -5
I believe that is the same body style as my MC-13-250 (Bali). Do you have the 244cc Honda clone engine with the vertical cylinder? If so the rear tire should be a 10 inch rim. Rear tire size is 120/  -10. The front tire should be a 12 inch rim. Front tire size 120/70-12. Yes, air temperature can make a difference on how it runs. They tend to run leaner in cold temperatures and it can be compensated for with the mixture screw, which is hard to get at on these. Stalling at stop signs is also an indication that the valves need to be adjusted. When you apply the brakes, does the front of the scooter dive down sharply? That can be the cause of the noise you hear. Means the front forks need to be serviced with fresh oil. They might be low and what passes for chinese oil isn't the best. Also, the sound could come from a loosely mounted brake caliper or loose steering head bearings. |
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Post by gatekeeper on Apr 8, 2013 22:20:48 GMT -5
Not in my experience. If fact, in my experience performance went down when I used it in my scoots. I am of the belief that you should only use the higher octane fuel if your engine has problems with pre-ignition.
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Post by gatekeeper on Apr 8, 2013 21:18:00 GMT -5
Check it on the center stand. If not it will be overfilled.
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Post by gatekeeper on Apr 6, 2013 20:50:55 GMT -5
The valve inside the stem may be loose. I had the same problem with a front tire. Turns out they never installed the valve core inside the stem tight enough and the tire would go flat on a weekly basis. Get a valve core tool at Walmart, 2 to 5 dollars, and check them. When I checked mine it took 1 1/2 turns to fully tighten it.
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Post by gatekeeper on Apr 6, 2013 14:22:53 GMT -5
45 and dumping down rain here in the good old Pacific Northwest. |
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Post by gatekeeper on Apr 6, 2013 10:56:04 GMT -5
A valve adjustment isn't anything major. A lot of Chinese scooters come from the factory with the valves poorly set. They also require more frequent adjustment than their Japanese counterparts.
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Post by gatekeeper on Apr 6, 2013 9:48:23 GMT -5
Adjust the valves. Here is a how to video:
Don't need to pull the fan cover off. Just make sure to holes in the cam sprocket are lined up as shown in the video.
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Post by gatekeeper on Apr 6, 2013 9:28:34 GMT -5
Pull the plug, put the lead back on it and ground the plug on the valve cover. Hit the start button and check for spark. If you have spark check your valve gaps. They should be around .004 inches on the intake valve and .005 inches on the exhaust valve. Dying at stop signs and hard starting is a clue that the valves need to be adjusted.
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Post by gatekeeper on Apr 6, 2013 5:54:22 GMT -5
Did this also happen before you bought the new solenoid?
You either hooked up to a wire that is always hot when the key is on or your start button switch and or brake switches are stuck in the on position.
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Post by gatekeeper on Apr 6, 2013 5:41:32 GMT -5
Yes, especially if they have never been adjusted before. Not uncommon for chinese scooter engines to need adjustment with less than 1000 miles on them. Should be set to .004 inches on the intake valve and .005 inches on the exhaust valve.
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-10. The front tire should be a 12 inch rim. Front tire size 120/70-12.