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Jialing



Joined: 09 Oct 2006
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PostPosted: Tue Nov 07, 2006 12:36 am    Post subject: Reply with quote

I wonder how many scooter owners have seen a scored piston? It only takes one small piece of metal to stuff up not only the bore but also the piston too.

Its too late after the event to say, "it will never happen to me."
Prevention is always better and cheaper than the cure. Razz


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px166bajaj
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Joined: 09 Oct 2006
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Location: Sevenoaks Kent (Er, that's UK!)

PostPosted: Tue Nov 07, 2006 6:51 am    Post subject: Reply with quote

On a Honda C50/70/90 my old manual said change the oil every 300 miles! I wonder what the chinese copies of these engines require?

The most common engine fault with C50s used to be people forgetting to change the oil and thrashing the little engine til it seized!



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larry8



Joined: 14 Oct 2006
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PostPosted: Tue Nov 07, 2006 8:28 pm    Post subject: Reply with quote

I read somewhere the Chinese copies of these engines require oil changes every day, or at least every 7.5284 miles.



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gazza



Joined: 18 Oct 2006
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Location: derbyshire

PostPosted: Sun Nov 12, 2006 3:49 pm    Post subject: Reply with quote

wow that would be a right pain in ass having to change it that often. be a proper nightmare unless get bored often and needed something to do. Shocked


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HodgeyBoy



Joined: 10 Oct 2006
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Location: Gibraltar + Spain, in a bar, on the floor.

PostPosted: Sun Nov 12, 2006 5:32 pm    Post subject: Reply with quote

JIALING!.....

Did you ever stick those magnets on your oil plug?


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Jialing



Joined: 09 Oct 2006
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PostPosted: Sun Nov 12, 2006 8:25 pm    Post subject: Reply with quote

I have finally got a nice small magnet that's gunna do the job and will not interfere with anthing.
One you remove your sump plug, you will find that there is a spring that holds up the oil filter onto the internal crankcase.
At the bottom of the actual sump plug you will find a nice big hole that the spring sits in.
Wash the plug, spring and filter in a drop of petrol and allow to dry while the engine oil is draining.
After its drained put the small magnet into the base of the sump plug followed by the spring. You will find the magnet is drawn onto the spring and sticks to it. This is normal and it stops the magnet from moving about. The spring being a cage, traps the magnet so it cant wander or cause any damage to the internals of the engine.
Last place the filter on top of the spring and put the lot back and tighten it up, then fill engine with oil.
The next time you do an oil change you will find tiny particles of metal sticking to the magnet. These can be removed quite easily on the next oil change.
If you ever find large pieces of metal, then you have advanced warning something is amiss and you may need to strip your engine and find out where that metal is coming from.
It may never happen but that little magnet might just be a life saver or rather an engine saver in this case.
Either way for the pennies a magnet might cost its good insurance to know that you have added protection by way of that magnet.
Hope it helps Razz


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zafer



Joined: 18 Nov 2006
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PostPosted: Sun Nov 19, 2006 7:37 am    Post subject: Reply with quote

at one time a flushing oil was used for an oil change, first the old oil was draind then flushing was poured in and the engine turned for a few strokes then drained, after that normal engine oil was poured in, as flushing oil is thinner it washes the parts of any thing that may have become cloged and the small metal parts easily washed out with it.


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px166bajaj
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PostPosted: Sun Nov 19, 2006 10:16 am    Post subject: Reply with quote

Shouldnt need to do this with modern oils. Just change your oil regularly and use a decent brand.



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gazza



Joined: 18 Oct 2006
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Location: derbyshire

PostPosted: Sun Nov 19, 2006 10:49 am    Post subject: Reply with quote

anyone recommend good oil for a shady baotian 50cc scoot? for engine oil and gearbox oil. maybe an ebay link? cheers


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sunburnspain



Joined: 11 Oct 2006
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Location: Malaga, Spain

PostPosted: Sun Nov 19, 2006 10:52 am    Post subject: Reply with quote

My dealer said never use flushing oil, just run some fresh oil through.



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larry8



Joined: 14 Oct 2006
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Location: Cleveland, Ohio USA

PostPosted: Sun Nov 19, 2006 1:48 pm    Post subject: Reply with quote

Use Amsoil Synthetic oil. It's the best oil for any engine, and probably too good for a Chinese scoot, but if you want engine longevity it can't be beat.
For you cheapscates, get used french fry oil from McD's or KFC.



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DS-Racing



Joined: 20 Oct 2006
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Location: Auckland, NZ

PostPosted: Tue Jan 02, 2007 10:16 am    Post subject: Reply with quote

I have a oil cooler on mine, I'm still trying to figure out a way to fit this magnet, I'm thinking of jb weilding an earth magnet to the outside of the plug, I'm sure the magnetisim of an earth magnet should be enough to draw some oil down.

also does any one recon it woul be hard to fit a remote oil filter between my hoses for the cooler???


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cb50j



Joined: 11 Oct 2006
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Location: Bonnybridge,Stirlingshire,Scotland

PostPosted: Tue Jan 02, 2007 11:05 am    Post subject: Reply with quote

"I have a oil cooler on mine"
your what?
"I'm still trying to figure out a way to fit this magnet"
you could always try what jialing has done, attach it to the inside of the sump plug.
"weilding an earth magnet to the outside of the plug"
suppose that's an idea.
"I'm sure the magnetisim of an earth magnet should be enough to draw some oil down."
gravity seems to do a good enough job for me?

"also does any one recon it woul be hard to fit a remote oil filter between my hoses for the cooler???"
can't see it being a problem

get some pics of your oil cooler up on site

................... C

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DS-Racing



Joined: 20 Oct 2006
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Location: Auckland, NZ

PostPosted: Tue Jan 02, 2007 11:37 am    Post subject: Reply with quote

cb50j wrote:
[you]"I have a oil cooler on mine"[/you]
your what?
[you]"I'm still trying to figure out a way to fit this magnet"[/you]
you could always try what jialing has done, attach it to the inside of the sump plug.
[you]"weilding an earth magnet to the outside of the plug"[/you]
suppose that's an idea.
[you]"I'm sure the magnetisim of an earth magnet should be enough to draw some oil down."[/you]
gravity seems to do a good enough job for me?

[you]"also does any one recon it woul be hard to fit a remote oil filter between my hoses for the cooler???"[/you]
can't see it being a problem

get some pics of your oil cooler up on site

................... C

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the problem is the oilcooler is one I brought from partsforscooters in the US, and it works by an adapter that screws into where the drain plug is so the drain screw isnt used in the same way well it is but there no longer is any room to fit a magnet. also I dont have any pics but look on there website and I'm sure you can find it.


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cb50j



Joined: 11 Oct 2006
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Location: Bonnybridge,Stirlingshire,Scotland

PostPosted: Tue Jan 02, 2007 11:46 am    Post subject: Reply with quote

I'm not going to bother trying to find it mate
I don't see any need for an oil cooler on these scoots..........
are you in some kinda hot climate?

................... C

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Jinlun JL50QT-4 88jet,KOSO Freeflow,4.7g rollers,CDI,NGKC7HIX sports variator (retaining 4.7g weights) 55mph
http://media.putfile.com/flat-50
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