05-30-2007, 10:22 PM | #1 |
bad vibeacions
on the newest motor. the OHC lifan I put in Rachel's Viva. when the motor is under a load there is growl like a bad bearing, I have pulled the rear wheel off and checked the wheel bearings, checked chain and sprockets, wheel hub and pulled the cluch apart. I can't find the source. any better ideas?
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05-30-2007, 10:45 PM | #2 |
Join Date: Jul 2006
Posts: 499
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Double check the chain and sprockets. Sounds like a stretched chain.
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05-31-2007, 07:58 AM | #3 | |
Join Date: Jan 2007
Location: Northern Vermont, USA
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Quote:
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First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP! |
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05-31-2007, 12:33 PM | #4 | |
Join Date: May 2006
Location: Fredericton, NB, Canada
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Quote:
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Frostbite "The beatings will continue until moral improves" |
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06-02-2007, 09:19 PM | #5 | ||
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Location: Altamont, Kansas
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Going to call AL and ask them. Allen
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06-02-2007, 11:36 PM | #6 |
Join Date: Dec 2006
Location: Douglas, Arizona
Posts: 154
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Frostbite, you were right the transmission is blown. Spoke with longevity and waiting on his reply for the replacement. Only 2 weeks and the transmission gone. Sounds like they are going to honor the warranty but we shall see.
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06-03-2007, 08:34 AM | #7 |
Join Date: Jan 2007
Location: Northern Vermont, USA
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Holy smokes. That's horrible news. Especially if others are having issues. Frosty, did you get to take the tranny apart to diagnos the problem or did it get shipped back?? This seems like a Lifan problem so far. I'd be curious to know what's up in there and a little nervous about losing the tranny at highway speeds. OB1, what do you think. I have no experience with a motorcycle tranny.
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First Chinabike: 2006 Roketa RSX200E Current Chinabikes: 2023 Titan DLX & 2022 Lifan KP Mini w/ 210cc BRT kit, 22 RWHP! |
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06-03-2007, 09:34 AM | #8 |
Join Date: Jul 2006
Posts: 499
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Transmissions are not my forte.
I can say this though, gearing these 200's for max speed will definitely increase the load on the whole engine. Add hilly terrain for more stress. I'm guessing most here {myself included} are no longer svelte, more stress. I thrash my 163FML2 engine whenever I ride it, but the Honda chassis is much lighter, and my gearing is 15/48, and I have had no problems with the motor at all. But still, the tranny shouldnt fail so soon after installing the new engine. My guess is that some excess casting debris may be floating around in some of the engines, galling bearings and causing failures. |
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06-03-2007, 01:21 PM | #9 | |
Join Date: May 2006
Location: Fredericton, NB, Canada
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Quote:
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Frostbite "The beatings will continue until moral improves" |
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06-03-2007, 07:23 PM | #10 |
Join Date: May 2007
Location: Altamont, Kansas
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This is not encouraging, but I haven't looked close enough to determine if mine is transmission related. Thanks, Allen
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06-04-2007, 02:19 AM | #11 |
Join Date: Jun 2006
Posts: 188
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This is ugly. My GY 200 has added a pretty nasty vibration when it is warmed up. I was wondering if it was falling apart. Think I will drop the oil and see what's floating around in there.
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06-04-2007, 01:01 PM | #12 |
Join Date: Dec 2006
Location: Douglas, Arizona
Posts: 154
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We had notthing floating around in the oil when we changed it, but the transmission was blown.
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06-04-2007, 01:56 PM | #13 |
Join Date: Apr 2007
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All the real nasty stuff gets stuck to the permanent magnets in the flywheel on these bikes i find when you drop the oil then pull the stator cover off and that's where you'll find debris
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06-04-2007, 05:26 PM | #14 |
Join Date: Jul 2006
Posts: 499
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Cast aluminum cases.... aluminum is nonferrous.
Regardless, without anyone actually ripping one down and finding the problem, we are all guessing. |
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06-05-2007, 12:37 AM | #15 |
I'm trying to keep the motor so I can do a tair down. hopefuly we will find out.
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