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General Category => Maintenance => Topic started by: rollinghelmet on January 01, 2015, 09:25:18 PM

Title: choke knob not staying fully up
Post by: rollinghelmet on January 01, 2015, 09:25:18 PM
My choke knob is not staying fully up

What is causing this, how do i fix, were do i get parts

so this means on cold mornings when i want full choke i have to hold the choke knob out for a minute


Title: Re: choke knob not staying fully up
Post by: Arnie on January 01, 2015, 10:59:57 PM
Don't really know the reason, but its not a "serious" problem.
Mine has never stayed 'engaged', but pulls back in almost immediately after pulling it ON.
It could be that I should never have lubed the "enrichment connector rod", or it could be that the cable end should be crimped a bit more. (which I'm not willing to try)
I've got a piece of closed cell foam about 10mm thick with a V cut into it and a string connecting it to the little change box in the LH fairing.  IF I need to keep the choke ON, I just  put this under the knob for a 1/2 min or so.  The FJ shouldn't need choke for more time than that anyhow.
You might want to ensure that your idle speed (when fully warm) is about 1100 rpm.

Arnie
Title: Re: choke knob not staying fully up
Post by: ELIMINATOR on January 02, 2015, 10:48:01 AM
At the FJ's age it is not surprising, even worse at my age. :biggrin:
Title: Re: choke knob not staying fully up
Post by: Mark Olson on January 02, 2015, 04:08:13 PM
If it doesn't make the click..click sound when you pull it or push back in , it is worn out .

You can find one at RPM Randy's and have it shipped.

Often they will melt into the head if not guided properly.

A way to put more tension in it is to route the cable for sharp turns so it becomes stiffer to pull and stays up.

(Yeah , I know what this sounds like.) :mocking:

Title: Re: choke knob not staying fully up
Post by: FJmonkey on January 02, 2015, 08:39:16 PM
Switch to #40 jets, you may not need the choke. I hardly use my choke now.
Title: Re: choke knob not staying fully up
Post by: simi_ed on January 02, 2015, 09:10:53 PM
Quote from: FJmonkey on January 02, 2015, 08:39:16 PM
Switch to #40 jets, you may not need the choke. I hardly use my choke now.

I hear switching to a rideable bike may require use of the choke    :empathy2:

When are you fixing yours?   :ireful:
Title: Re: choke knob not staying fully up
Post by: FJmonkey on January 02, 2015, 10:58:58 PM
Quote from: simi_ed on January 02, 2015, 09:10:53 PM
When are you fixing yours?   :ireful:

I love you too Ed.... That was a really good laugh, thanks. I am working on solutions. I have a good welder and recent access to Solidworks to design a bracket to make this debackle work. I plan to make extra brackets for other sorry ass Ambulance riders that want to have dog bones....
Title: Re: choke knob not staying fully up
Post by: mark1969 on January 03, 2015, 10:58:43 AM
Degrease the cable by spraying some brake cleaner down it. Someone has probably lubed the cable in the past. Worked for me anyway..
Title: Re: choke knob not staying fully up
Post by: mark1969 on February 11, 2015, 12:30:09 PM
Quote from: mark1969 on January 03, 2015, 10:58:43 AM
Degrease the cable by spraying some brake cleaner down it. Someone has probably lubed the cable in the past. Worked for me anyway..

Further to my comment about degreasing, it does help to a degree, but I've just bought a new unused choke cable (old stock) and the action is really positive and kind of like a mini ratchet inside the cable. Without stripping it apart (I may with the old one when I've swapped them) I'm guessing the ratchet action wears over time rendering the thing a bit useless.

Put simply, I cannot wait for my new choke cable to be fitted. I've also purchased a very nice looking aluminium choke knob from ebay Germany. I don't particularly want the bling look, but in case I have to mash up the old knob to get it off (if drilling old screw out doesn't work..) it seemed a steal at £7.50 delivered...  :yahoo:
Title: Re: choke knob not staying fully up
Post by: JOMPPA10 on February 26, 2015, 12:41:11 AM
I fixed mine by using dremel to grind those worn out notches in choke rod (hope u understand).