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Sportbikes / Re: Friction noise?
« on: March 20, 2010, 03:56:06 PM »
This is a follow up. I never find the root of the problem. But lubricating the chain reduced the noise significantly, if not eliminate it.
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Sportbikes / Re: OK BIKE STILL BOGGS OUT! help
« on: January 11, 2010, 07:57:07 PM »
Don't go more than 5k when the bike has less than 500 miles. Do you see smoke came out of the muffler? Could be too much oil. Did you use the right kind of oil? Check the spark plug. Make sure the spark plug cable stay clear of the engine.
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Sportbikes / Re: Friction noise?
« on: January 11, 2010, 07:45:22 PM »
There is another possible cause. It could be the rear brake rubbng against the brake disc.
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Sportbikes / Re: Friction noise?
« on: January 10, 2010, 10:50:56 AM »
I think you are right. It's the rear wheel alignment not right. Probably the sprocket is touching the side of the chain causing the friction like sound. Thanks. I didn't know the rear wheel alignment is so touchy. Actually I did it as careful as I could.
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Sportbikes / Friction noise?
« on: January 08, 2010, 04:30:04 PM »
I had my 250GS for a year and half,. Almost 4000 miles now. Can get about 73 miles per gallon. It does run better after couple thousands miles. No big problem, but some small problems. I list them in the following.
1. The battery connector was broken. This is because they bent the metal too sharp an angle.
2. The ignition cable got in contact with the engine and almost burned through before I discovered it.
3. The spark plug gap was too small.
4. The ruber bands used to hold the battery and other parts all disintegrated.
5. The transmission lever became loose.
6. The gasolne tank leaks near the cap when I drop my bike. Fromtme to time some sticky staff came out near the cap.
Recently I discovered that the chain was too loose(this could be dangerous and everybody should check it out). So I bought a big lug wrench and loosed the rear wheel. Adjusted the chain tension by the adjusting screw. But afterwards I began to hear a friction sound. It seems the sound happens when the wheel rotates to a certain position. Does anyone have an idea as where this sound comes from? I checked both the front and the rear wheel and didn't see anything. Thanks for any info.
1. The battery connector was broken. This is because they bent the metal too sharp an angle.
2. The ignition cable got in contact with the engine and almost burned through before I discovered it.
3. The spark plug gap was too small.
4. The ruber bands used to hold the battery and other parts all disintegrated.
5. The transmission lever became loose.
6. The gasolne tank leaks near the cap when I drop my bike. Fromtme to time some sticky staff came out near the cap.
Recently I discovered that the chain was too loose(this could be dangerous and everybody should check it out). So I bought a big lug wrench and loosed the rear wheel. Adjusted the chain tension by the adjusting screw. But afterwards I began to hear a friction sound. It seems the sound happens when the wheel rotates to a certain position. Does anyone have an idea as where this sound comes from? I checked both the front and the rear wheel and didn't see anything. Thanks for any info.
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