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vanus
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| Fri Jul 18, 2008 1:42 am kaisar 125cc shock when engine over 8000rpm |
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I don't know what happening.....
very shock in the engine when I going on 8000rpm
should I bring to repair?
ps: engine oil half year old.... |
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Scribble1412
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| Fri Jul 18, 2008 5:07 am |
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Well if you're still able to hit 8000rpm then your scooter is obviously still running. Can you define the "shock" you speak of?
Here's a pretty generic response:
Change the fluids (engine oil and gear oil)
Pull the sparkplug and check its color (white, brown, or black)
Look for kinked or torn air hoses
Replace sparkplug
Then report back! |
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px166bajaj
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| Fri Jul 18, 2008 5:54 am |
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I'm guessing he means vibration at 8000 RPM. Could be the belt is worn.
I had a mysterious knocking on my SYM when I got up to speed recently. I found the rear wheelnuts were a bit loose where I had taken it off to change the tyre. It sounded just like a flapping belt though. |
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J€Di
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| Fri Jul 18, 2008 10:07 am |
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The Kaisar is a geared bike, not a scooter... it uses a copy of the Honda CG125 engine, which was never designed to exceed 8,000rpm however a number of bike makers use it and give it a redline of 10,000rpm. It is safe to do those revs, even though it sounds harsh as hell and vibrates strongly. Unfortunately, 8000rpm in 5th gear equates to 50mph so if you want to go faster than that you just have to grit your teeth and go for it.
I found that fitting some foam grips to my girlfriends Sukida (same engine and frame, just different plastics) cut down on the vibrations through the handlebars, and a set of heavy steel bar end weights also helped. |
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J€Di
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| Fri Jul 18, 2008 10:08 am |
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| Oh, and... change your oil! |
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vanus
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| Fri Jul 18, 2008 10:54 am |
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hahahaha......
I always grit my teeth and do faster
in fact, the kaisar can done 80mph....@ 8000rpm topgear
on lewes road brighton
anyway, thankyou everyone opinions
I am now going to change oil and gear oil
and I wish I can change CDI and let it go more faster
PS: just 1years old bike shouldn't be worn....!!? I think=.= |
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J€Di
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| Fri Jul 18, 2008 12:01 pm |
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Yes, a 1 year old bike can be worn... for example are you oiling and adjusting your chain every week? Giving all the shiny bits and all the nuts and bolts a squirt of WD40? Checking everything is tight? Seeing as you state your oil is 6 months old, I suspect not... the oil is vital and should be changed every 2000km on these bikes, the oil doesn't just keep the engine from wearing away it also cools it. That means it breaks down very quickly, I'll bet your oil is black and runny as water... have you checked?
Jut to give you an example, a chain that isn't oiled or badly adjusted can snap. When that happens, it can wrap itself around the rear sprocket, locking the wheel. So imagine doing 80mph down Lewes Road in Brighton, on your arse... and you have three seconds before the tarmac goes through your jeans, your skin, your muscle and starts scraping your bones... |
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McLovin
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| Fri Jul 18, 2008 5:20 pm |
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| Mine vibrated crazy at 8000 revs it's normal, I think the highest I ever went was 9000 and it wanted to blow up. |
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Brighton Russell
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| Sun Jul 20, 2008 9:27 pm |
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vanus wrote: hahahaha......
I always grit my teeth and do faster
in fact, the kaisar can done 80mph....@ 8000rpm topgear
on lewes road brighton
anyway, thankyou everyone opinions
I am now going to change oil and gear oil
and I wish I can change CDI and let it go more faster
PS: just 1years old bike shouldn't be worn....!!? I think=.=
part of Lewes road is a heavily built up shopping road, with kids and old people crossing. and a 30mph speed limit :x . so dont speed there. |
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scooterfanatic
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| Wed Jul 23, 2008 8:31 pm |
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vanus wrote:
in fact, the kaisar can done 80mph....@ 8000rpm topgear
PS: just 1years old bike shouldn't be worn....!!? I think=.=
ROFL !!!! |
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vanus
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| Sun Jul 27, 2008 11:31 pm |
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changed engrine oil .... now is better
I am going to running in .... just 2500km I think I wouldn't go to fast until 3500km
yup....if I wanna go fast.... I have to check the bike everyweeks
WD40 for chain and something else??
thankyou....
from newb ^_^ |
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J€Di
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| Mon Jul 28, 2008 12:33 am |
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| Chain lube for chain, not WD40. Halfords do Holts chain lube for £6. |
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scooterfanatic
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| Mon Jul 28, 2008 6:39 am |
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J€Di wrote: Chain lube for chain, not WD40. Halfords do Holts chain lube for £6.
Dont forget to REGULARLY check the chain tension, these stock chains are crappy quality (as are the sprockets) and need adjustment regularly like once a week or so. Mine old bike was the same as yours and needed this so I'd keep an eye on it cause a very slack chain can spell trouble. |
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scooterfanatic
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| Mon Jul 28, 2008 6:45 am |
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J€Di wrote:
. So imagine doing 80mph down Lewes Road in Brighton, on your arse... and you have three seconds before the tarmac goes through your jeans, your skin, your muscle and starts scraping your bones...
Oh stop it jedi, your making my eyes water!!! Owch!!! :icon_scared: |
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vanus
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| Mon Jul 28, 2008 10:13 am |
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thankyou everyone seniors.....
I will check my moped everyweek
today I went to A27 and tried 85mph but the moped rejucted..=_=
also I think the tyres too tiny .... you right... the moped is not design for highway... even I am running 75~80mph... but also scaring...=_="
I need to learn how ride safely.... |
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