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Post by kavid2013 on Jun 4, 2013 9:33:45 GMT -5
i have purchased 50mm hoca cylinder kit.
i previously owned 50mm chinese bbk, and would like to use the chinese head.
would the hoca cylinder kit work fine ?
or should i buy the matching hoca head?
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Post by kavid2013 on Jun 4, 2013 9:26:47 GMT -5
dude if you take out the whole air box, it will run lean.
more air = lean
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Post by kavid2013 on Jun 3, 2013 12:51:13 GMT -5
it is foggy and white
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Post by kavid2013 on Jun 3, 2013 12:11:09 GMT -5
i was riding without airbox because it was running rich.
i think it was slightly lean because it ran ok for like 10 min and when i came hill climb, it started crawling and engine turned off by itself. and engine couldnt be started for like 5min.
could smell something burning too.
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Post by kavid2013 on Jun 3, 2013 10:46:00 GMT -5
i have disconnected hose to the air box and put longer hose to the back of the scoot and it is dumping out engine oil until all of oil disappear in the crank case
what is wrong?
i see oil dripping out from the end of the hose
also i see smoke coming out of the hose
i think piston ring is broke.
because i was running lean and over heated once.
since then this problem consists
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jerky ride
by: kavid2013 - Jun 2, 2013 21:06:46 GMT -5
Post by kavid2013 on Jun 2, 2013 21:06:46 GMT -5
I think you have the same problem as mine,
just clean the air filter and jerking problem will disappear
and take out the hose and put it upward somewhere in scoot so the oil won't leak any more
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Post by kavid2013 on May 28, 2013 23:20:00 GMT -5
what kinda gear oil should i use for my scoot?
my scoot is Chinese 50cc and gy6 qmb139.
which brands are good? any recommendations?
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Post by kavid2013 on May 23, 2013 22:37:35 GMT -5
is it supposed to be connected to intake manifold?
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Post by kavid2013 on May 23, 2013 22:16:40 GMT -5
how does vacuum fuel pump work?
my scooter has vacuum operated fuel pump that is connected to fuel tank and other hose is connected to intake manifold, and the other is to the fuel filter.
how does it pump the fuel?
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Post by kavid2013 on May 23, 2013 22:14:07 GMT -5
I want to know what is the difference between stock air filter box and simple sponge air filter like ones made by UNI.
which one is better?
why would stock air filter box be designed that way?
why wouldn't they just simply make it like UNI's?
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Post by kavid2013 on May 21, 2013 21:22:52 GMT -5
thx for the useful information!
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Post by kavid2013 on May 21, 2013 20:36:21 GMT -5
I'm just curious.
my 50cc scooter has valve cover vent connected to air box.
and I would like to know what does the valve cover vent do?
what is it's function?
also I found lots of oil soaked into the sponge inside the air box.
is it normal thing?
thanks.
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Post by kavid2013 on May 10, 2013 11:40:39 GMT -5
lol i didnt know there is scooter mx races
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Post by kavid2013 on May 9, 2013 21:25:26 GMT -5
I have put a dirt bike tire on my rear wheel today!
and I can throw any off road on my scoot and it will just go.
I feel like as if I am riding a dirt bike!
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Post by kavid2013 on Apr 30, 2013 22:14:13 GMT -5
where can I find these ground wires?
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