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Norm's 2 stroke repair center Having problems with you 2 stroke motorized bicycle engine? Just ask Norm. he loves to tinker and troubleshoot engines.

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  #1  
Old 02-13-2010, 01:44 PM
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B.C Rider B.C Rider is offline
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Default CNS Main Jet Removel

Simply put there is no way to safely put a tool on the jet.
I think I need to go smaller.
Your thoughts.

Cheers.
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Old 02-13-2010, 02:40 PM
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Default Re: CNS Main Jet Removel

B.C.
I have not seen the insides of that carb so I can't tell you what to do for it.
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Old 02-13-2010, 06:48 PM
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Default Re: CNS Main Jet Removel

Quote:
Originally Posted by Norman View Post
B.C.
I have not seen the insides of that carb so I can't tell you what to do for it.
Well, going down to party for the Olympics tonight, but I will take it apart/take/post pics Sunday.

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Old 02-13-2010, 08:56 PM
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Default Re: CNS Main Jet Removel

Quote:
Originally Posted by B.C Rider View Post
Simply put there is no way to safely put a tool on the jet.
I think I need to go smaller.
Your thoughts.

Cheers.
the main jet is pretty big pretty tough use a _3 flathead if that dosent work lightly spin it off with pliers without crushing it.
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Old 02-16-2010, 01:16 PM
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Default Re: CNS Main Jet Removel

Ok.
I got the jet out.
Now does any on know where to get jets for the CNS?
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Old 02-16-2010, 02:05 PM
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Default Re: CNS Main Jet Removel

you got it out find out what the dia of the hole is first so you will know which way to go on size, I use the shank of the micro drill bits to measure the jet hole size first. solder it shut then to make it richer go one size larger in dia leaner one size smaller.
Some of the members won't do the soldering thing, I do it works fine for me. for the cost of a couple of jets you can buy a set of micro drills and the pin vice to hold the micro drills in and the pin vice is the hand powered drill used to drill the solder out in the jet. no need for a bunch of unusable jets laying around. You will be able to re size most any carb jet with the bits.
If you buy the micro bit be sure to buy the pin vice the drill bits are so small they won't fit a chuck on an electric drill, you will break the tiny bits using a electric drill anyway.
Some of the bits are the size of a hair the pin vice is the only tool to use on the bits.
Pin vice can be purchased at the better hobby shops
micro drill too.
you can also find both tools at some gun shows,gives you an excuse to go look at the guns.
I'd sure like to get one of these ak-47s, no wait a 50 cal. rifle,no wait a rugger 10.22.
last time I went I bought a taser for the nasty dogs.
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Old 02-16-2010, 02:35 PM
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Default Re: CNS Main Jet Removel

i def drill and resolder the jets in a cns are oddball one offs never in 13 yrs seen one not even in a streetbike
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Old 02-24-2010, 10:29 PM
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Default Re: CNS Main Jet Removel

the jets are made out of brass, right? What is the best kind of solder to use, and with a torch or soldering iron?
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Old 02-25-2010, 10:34 AM
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Default Re: CNS Main Jet Removel

Main jets are brass or some kind of brass alloy I think.
I use acid flux and what ever solder I happen to have no need for silver solder.
I use a propane torch if your soldering iron will get the main jet hot enough then I see no reason not to use a soldering iron.
It don't take much heat to get the main jet hot,you just want to solder the hole shut and not glob
solder all over the jet.
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