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Engine basics => Engine set up tips => Topic started by: Tom Taylor on September 24, 2007, 07:09:44 AM

Title: K&B 61 needle valve
Post by: Tom Taylor on September 24, 2007, 07:09:44 AM

I need some help with my K&B 61.  I bought this engine with out a needle valve, but with the aluminum venturi.  The problem that I'm having is that I can't find a needle valve long enough add both of the securing nuts to the needle valve end.  I've attached a pic to explain. ???

Title: Re: K&B 61 needle valve
Post by: Tom Dugan on September 24, 2007, 10:47:47 PM

Tom,

I asked the very same question a couple months ago.  I even contacted MECOA who produces a CL version of the 61.  Unless something has come available in the past 2 months or someone else weighs in with an answer....I'm afraid you will need to mill the sides of to get the needle assembly to fit.  MECOA mills the sides to get their valve to fit properly.  If you need parts, for that 61, MECOA has them.  WWW.MECOA.com .

Link to my original post   http://stunthanger.com/smf/index.php?topic=6315.msg52082#msg52082

Thomas

Title: Re: K&B 61 needle valve
Post by: Tom Taylor on September 25, 2007, 07:13:12 AM

Thanks Thomas,

I should have done a little investigation before posting.  Looks like some machining work will be needed.

Tom

Title: Re: K&B 61 needle valve
Post by: Bill Hummel on September 25, 2007, 07:18:08 AM

Hi, Tom,
   I found a long ST style NVA in my junk box which fits in my K&B 61, don't know the source.  Might contact Randy Smith, he can usually come up with a good solution, better than machining.  Also, I'm told that a Merco NVA will fit in the K&B, but have no hands-on experience. The K&B 61 runs pretty well, I'm impressed!  Hope this helps...

Title: Re: K&B 61 needle valve
Post by: Tom Taylor on September 25, 2007, 07:38:33 AM

Thanks Bill,

That would be a relief if I don't have to mill the housing.  I'll contact Randy and search around for a Merco.

Tom

Title: Re: K&B 61 needle valve
Post by: RandySmith on September 25, 2007, 09:40:08 AM

Quote from: Tom Taylor on September 25, 2007, 07:38:33 AM

Thanks Bill,

That would be a relief if I don't have to mill the housing.  I contact Randy and search around for a Merco.

Tom

HI

I was trying to find  the exact diminsion of the case  where the spray bar goes thru
If it is .720 or less  the PA  60  NVA  will fit
If it is up to .750 wide the ENYA 60 NVAs  will fit
I will try to find others

Randy

Title: Re: K&B 61 needle valve
Post by: Tom Dugan on September 25, 2007, 09:59:45 PM

Tom,

I'm not sure if Randy intended to make a post or not.  Maybe he's agreeing that you contact him.  He didnt indicate in my previous post that he has a solution but maybe he does.  Regardless, if you find a suitable solution for your situation please let me know. 

Yesterday, I mailed 2 K&B 61's to Clarence Lee to setup for CL.

Thomas

Title: Re: K&B 61 needle valve
Post by: Leester on September 26, 2007, 03:12:00 AM

My Gold head which should be the same case is 25/32 nds or .781

Title: Re: K&B 61 needle valve
Post by: Tom Taylor on September 26, 2007, 06:48:45 AM

Thanks for the measurement Leester,  I sent Randy a private message to ask for his help if he had anything available.  I soon as I know something I'll post it.

Title: Re: K&B 61 needle valve
Post by: Tom Taylor on October 05, 2007, 01:22:00 PM

An ENYA needle valve assembly works perfectly for a K&B 61.  You will not need to machine any of the housing away.  Our moderator, Randy Smith sent me one and it fit perfectly. #^