| Tricks of the trade Posted in Bike Setup!!!  | | 
08-03-2009, 07:45 PM
|  | Certified MR Member | | Join Date: Feb 2009
Posts: 1,403
| | Quote:
Originally Posted by twisties whitty im not 100% sure myself, but from what i understand its like this:
get a caliper or something, and measure the diametre of the hole in your engine block that the manifold goes into.
you want that hole to match the size of the pipe between the carby and the engine block itself.
so basically you are sanding it etc to widen it up so that there is no restriction between the carby and the engine block.
hope that helps! | best things using bearing blue or ink on both faces, slip in some paper and screw it on... pull it apart and look thru the paper against the light...
then you can see if the holes are actually in line and what material needs removing from where...
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08-04-2009, 06:28 PM
|  | Member | | Join Date: Apr 2009 Location: Sydey!!:)
Posts: 40
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great thread.
what about for the people who are half poor.
if you got 50 bucks lying around, go and buy an aftermarket performance cdi and coil
the cdi will send a larger pump to the coil wich will give a larger spark
match it to a good spark plug and it will make a diff | 
08-04-2009, 07:58 PM
|  | Senior Member | | Join Date: Feb 2009 Location: rindi rep
Posts: 101
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sick thread mate
im gonna port and pollish my manifold tomorrow
cheers
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30-04-2009, 02:08 PM
| | Junior Member | | Join Date: Dec 2008
Posts: 13
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I have no idea if this applies or is relevant to the small size of pitbike wheels, but on our motocross bikes we used to cable tie each of the spokes where they crossed over.
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31-05-2009, 08:00 PM
| | Junior Member | | Join Date: May 2009
Posts: 25
| | Quote:
Originally Posted by kwikaz yer top post unit one question though, how do i port the hole in the head with out gettn metal dust in there??  |
you dont port no head, u port the INTAKE MANIFOLD the thing coming out of the head into the carb.
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01-10-2009, 10:15 AM
| | Senior Member | | Join Date: Jan 2008 Location: qld
Posts: 314
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if your sick of ripping valves out of tubes , and are to tight to get a rim lock .
stick a couple of short self tapping screws thru the rim and into the tyre ,make sure they dont go into tube .
about 4 on the back and 2 on the front
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16-03-2010, 01:19 AM
|  | Senior Member | | Join Date: Sep 2008 Location: Mt Gambier, SA
Posts: 110
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Glad to have found this thread
I got a rough looking intake manifold with my new OKO carby today. Well, from what I've read it sounds like they are all rough as guts
So it must be time to make use of that Dremmel Kit I bought years ago!
Here are a few pics to show what a manifold looks like (brand new) and what part of it needs tidying up (ie. the entire inside bit!!)
I'll put some more pics up after the job is done
__________________ MSO SR140 | 
16-03-2010, 02:45 PM
|  | Senior Member | | Join Date: Oct 2008 Location: RADelaide
Posts: 269
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Believe it or not muddymini that is actually a good manifold.
__________________
Motovert RX150
Lifan 150cc
OKO 26mm carby with match ported manifold
32mm exhaust with Yoshimura silencer
Unifilter pod
NGK R plug
Twinspark lead
Death grips
Bar end mirrors
LED indicators
Black plastics with Hotwheels graphics
Dunlop TT92s
16/39 gearing
DID chain
Polished swingarm
One Industries seat cover
Full 150cc compliance/rego
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16-03-2010, 03:04 PM
|  | Senior Member | | Join Date: Sep 2008 Location: Mt Gambier, SA
Posts: 110
| | Quote:
Originally Posted by Motovert Pro Believe it or not muddymini that is actually a good manifold. | HOLY CRAP! Well I'd hate to see what a really bad one looks like then  This manifold actually makes my Mikuni look flawless
__________________ MSO SR140 | 
16-03-2010, 05:32 PM
|  | Senior Member | | Join Date: Aug 2009
Posts: 180
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i gave the porting trick ago on the manifold, turned out alright, all smoothed and polished 
ill post pics later
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