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joe_T
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| Fri Feb 22, 2008 12:27 am precaution: one way an engine can sieze |
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hi guys. just a precaution, always warm your engine up for a couple of minutes and take it easy for the first couple of miles. if you don't warm your engine gradually on the stand, the piston will expand faster than the cylinder and sieze! I was unfortunate to find this out the expensive and hard way :roll:. I thought I better warn everyone because not many people think of it.
pics of the damage:
be warned! I know most of us do warm up our engines but this once I was running late so I didnt warm it up. luckily I'm crazy enough to take it apart myself lol. |
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NoBike
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| Fri Feb 22, 2008 6:12 pm |
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| I clicked no because I don't warm it up properly. It's hard to let the bike idle on it's own with it being manual choke. So I sit on it and keep the revs up using the throttle for about 2mins, then I set off. After a few hundred yards I take the choke off. then ride away 30mph in 4th/5th gear. |
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TheDarkCutlass
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| Fri Feb 22, 2008 6:27 pm |
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Most people might say they let their bike/car warm up, but sad thing is, alot of those people don't warm up their bikes/cars properly. In 40F weather, it can take a car 15-20 minutes of idling and it still isn't 100%
Sad thing is with these scoots being air cooled, in cold whether they will never get up to operating temperature on the stand just idling.
Best thing to do is let it stand there running for a 3-5 minutes, and then just take it easy for like the first mile. By then it will be at full operating temperature
And a side note, a big V16 diesel can sieze just the same as a 50cc 1 cylinder if not properly warmed up and maintained. |
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frainey
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| Fri Feb 22, 2008 7:33 pm |
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I start mine on full choke then switch it to half straight away and it will idle fine.
Usually give the bike 2 mins on idle then take it easy for the first mile or so. |
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px166bajaj
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| Fri Feb 22, 2008 7:50 pm |
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The thing with twist and gos is that even though the engine is nice and warm after a few minutes, the poor old gearbox is still stone cold way down at the back of the transmission casing. Mind you, those gears are fairly robust and unlikely to suffer much wear at all as long as you change the oil regularly.
With a geared bike, the gearbox is in unit with the engine, so it is worth warming it up before you start off.
Either way, it's not a good plan to rag it from the startoff! :wink: |
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nikolai
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| Fri Feb 22, 2008 7:53 pm |
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| Even though I live in Southeast Asia, motors do seize if not warmed up properly. Fire up the bike, fast-idle on auto-choke for a couple of minutes, then nice and easy for the first few kilometers. |
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joe_T
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| Fri Feb 22, 2008 10:19 pm |
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| hi guys I'm glad everyones got a good idea on how to warm up your engines. it's sad that they don't tell you these things on your cbt. something as simple as this can be overlooked, I never would have thought my engine siezed because of it warming up too quick. at least shes running again! I clicked yes on the poll because I intend to treat my bike better now. these 50cc engines are only small and the piston is about [________this wide__________]. from taking apart my engine, I was amazed at how such a small piston can carry you up to 35mph on average. ive learnt to treat my bike with a bit more respect in the future. |
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