Planet Minis

damann33 · 03-24-2008, 11:23 AM

Hi there, I recently bought a 26mm oko carb kit, but the intake I bought is around 22mm in diameter on the head side, and is 26mm on the other. Is it possible to use a dremel cutting tool, and just open up the port to 26mm? or do you need to send it out, to get it done proper?

76 VETTE · 03-24-2008, 12:22 PM

By Intake you mean the intake manifold?

If so; Dremel away......

There is no higher science involved in opening up a restrictive manifold.

While you're at it; try to accomplish that the intakemanifold(hole) and the intake port(hole) in the head line up to eachother as nicely as possible.
Using the gasket to check things helps.

Good luck.

damann33 · 03-24-2008, 12:26 PM

the head intake port is already ported at 26mm, and yea I mean the intake manifold. I will try my best at opening up that intake all the way through to 26mm.

dougtrip · 03-24-2008, 03:56 PM

You Will Probably Have To Taper It. The Neck Isn't Big Enough To Go 26mm Up Into The Intake. At Least The Few That I Have Done It Would Be To Thin Or You Would Go Thru

223 · 03-24-2008, 08:30 PM

imagine thats thats like covering half your mouth and trying to run and breath
i got the pick and ported them out with a die grinder or a drill bit

Pat Farsole · 03-24-2008, 11:43 PM

Don't bother with the TB manifold if it's going to be too thin or break thru ...... Sell it ! Just bolt the OKO mounting rubber to your Lifan 140 manifold and run that if it's a 56-2 DC since it's already 26 mm all the way thru . You can port the Lifan manifold to match your head and carb using an el cheapo long shank ball shaped stone in a variable speed drill ..... use lower speeds to stop alloy from clogging the stones up and use a dressing stone to clean it up and keep it cutting evenly . Use the biggest stone you can fit into the stock bore without it jamming and it'll greatly help you keep things round .......

Here's a few examples of ported Loncin manifolds done as described above .......

Carb end :

Head port end :

noVtecHERE · 03-24-2008, 11:55 PM

looks good... i really need to do my bike...

damann33 · 03-25-2008, 10:19 AM

I have an intake which is 26mm all the way through, but the rubber carb flange is to big to bolt onto that intake. How much would it be to have someone port/taper this intake for me

Pat Farsole · 03-27-2008, 01:25 AM

The rear O/D of your carb should be 35 mm ..... Akunar sells rubbers which fit the stock Lifan 56-2 DC intake ..... That's what we use in 26 OKO flatslide kits .

03-24-2008, 11:23 AM	#1 (permalink)
damann33 1st Gear Member Join Date: Jan 2008 Location: canada ontario Posts: 170	porting TB intake Hi there, I recently bought a 26mm oko carb kit, but the intake I bought is around 22mm in diameter on the head side, and is 26mm on the other. Is it possible to use a dremel cutting tool, and just open up the port to 26mm? or do you need to send it out, to get it done proper?

03-24-2008, 12:22 PM	#2 (permalink)
76 VETTE 1st Gear Member Join Date: Sep 2007 Location: Oisterwijk, The Netherlands Posts: 155	Re: porting TB intake By Intake you mean the intake manifold? If so; Dremel away...... There is no higher science involved in opening up a restrictive manifold. While you're at it; try to accomplish that the intakemanifold(hole) and the intake port(hole) in the head line up to eachother as nicely as possible. Using the gasket to check things helps. Good luck.

03-24-2008, 12:26 PM	#3 (permalink)
damann33 1st Gear Member Join Date: Jan 2008 Location: canada ontario Posts: 170	Re: porting TB intake the head intake port is already ported at 26mm, and yea I mean the intake manifold. I will try my best at opening up that intake all the way through to 26mm.

03-24-2008, 03:56 PM	#4 (permalink)
dougtrip 3rd Gear Member Join Date: Dec 2005 Location: North East Ohio Posts: 1,919	Re: porting TB intake You Will Probably Have To Taper It. The Neck Isn't Big Enough To Go 26mm Up Into The Intake. At Least The Few That I Have Done It Would Be To Thin Or You Would Go Thru

03-24-2008, 08:30 PM	#5 (permalink)
223 2nd Gear Member Join Date: Jan 2008 Location: oregon Posts: 971 My Mood:	Re: porting TB intake imagine thats thats like covering half your mouth and trying to run and breath i got the pick and ported them out with a die grinder or a drill bit

03-24-2008, 11:43 PM	#6 (permalink)
Pat Farsole 2nd Gear Member Join Date: Nov 2006 Posts: 389	Re: porting TB intake Don't bother with the TB manifold if it's going to be too thin or break thru ...... Sell it ! Just bolt the OKO mounting rubber to your Lifan 140 manifold and run that if it's a 56-2 DC since it's already 26 mm all the way thru . You can port the Lifan manifold to match your head and carb using an el cheapo long shank ball shaped stone in a variable speed drill ..... use lower speeds to stop alloy from clogging the stones up and use a dressing stone to clean it up and keep it cutting evenly . Use the biggest stone you can fit into the stock bore without it jamming and it'll greatly help you keep things round ....... Here's a few examples of ported Loncin manifolds done as described above ....... Carb end : Head port end :

03-24-2008, 11:55 PM	#7 (permalink)
noVtecHERE 3rd Gear Member Join Date: Nov 2007 Location: Gilbert AZ Posts: 1,512	Re: porting TB intake looks good... i really need to do my bike...

03-25-2008, 10:19 AM	#8 (permalink)
damann33 1st Gear Member Join Date: Jan 2008 Location: canada ontario Posts: 170	Re: porting TB intake I have an intake which is 26mm all the way through, but the rubber carb flange is to big to bolt onto that intake. How much would it be to have someone port/taper this intake for me

03-27-2008, 01:25 AM	#9 (permalink)
Pat Farsole 2nd Gear Member Join Date: Nov 2006 Posts: 389	Re: porting TB intake The rear O/D of your carb should be 35 mm ..... Akunar sells rubbers which fit the stock Lifan 56-2 DC intake ..... That's what we use in 26 OKO flatslide kits .

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