Brumby/EA81 almost stalling at idle

theconcierge · Post by **theconcierge** » Tue Nov 08, 2011 3:44 pm

hi all

So my Brumby has always run like a dream. Haven't driven it too much in the last couple of months, but it seems to have developed a idle problem over the last couple of weeks. On start up and at idle it sounds and feels like it is going to stall. When driving it is 100%, it's just when it's at idle.

I have taken a quick video - I have the air cover off ( this made no difference )

http://www.youtube.com/watchv=4hjNKyDK6 ... ata_player

Any ideas what I should start looking at ( I have a very basic knowledge on cars )

revmax · Post by **revmax** » Tue Nov 08, 2011 3:46 pm

youtube link does not work

theconcierge · Post by **theconcierge** » Tue Nov 08, 2011 3:46 pm

lets try that again

http://www.youtube.com/watch?v=4hjNKyDK ... ata_player

YouTube · Post by **El_Freddo** » Tue Nov 08, 2011 4:24 pm

Without viewing the video I'd be checking all of your vacuum hoses to make sure they're all still connected. It will take one hose to slip off and you'll have starting issues, idle issues and it won't run very well either.

The other thing to check is your spark plugs and leads - if one spark is down you'll be on three cylinders until you pick the revs up.

All the best

Bennie

Silverbullet · Post by **Silverbullet** » Tue Nov 08, 2011 5:15 pm

+1 for vacuum leak, I had a small one and mine idled like that but when driving it was barely there. Also plugs and leads, I've had a plug look like new but was broken internally.

Failing that you could always give the idle speed screw a little tweak, although it wouldn't solve why the engine has suddenly developed this problem.

theconcierge · Post by **theconcierge** » Tue Nov 08, 2011 5:57 pm

Thanks guys - how many vacuum hoses are there?

Brumby91 · Post by **Brumby91** » Tue Nov 08, 2011 7:38 pm

theconcierge wrote:Thanks guys - how many vacuum hoses are there?

Not many, just the same amount of people with the last name "Chang" in a Chineses white pages!

steptoe · Post by **steptoe** » Wed Nov 09, 2011 5:32 pm

Your Brumby has just read you intend to sell.....

an amazing fix can be to spray same carby cleaner down the throat of carby while running, comes up nice and clean, washes out gummy crap from all the orifices and bleeder jets etc

Silverbullet · Post by **Silverbullet** » Wed Nov 09, 2011 5:35 pm

Depends more how old the engine/manifold is. All my engines have been 83' or before and have only had 1 or two vacuum outlets. I'm assuming this Brumby is alot later in which case there's a few

FROG · Post by **FROG** » Wed Nov 09, 2011 5:57 pm

Silverbullet wrote:Depends more how old the engine/manifold is. All my engines have been 83' or before and have only had 1 or two vacuum outlets. I'm assuming this Brumby is alot later in which case there's a few

one million precisely

Post by **TOONGA** » Wed Nov 09, 2011 6:17 pm

mine is an 89 brumby and from the look of your aircleaner they put in more vacuum lines

this is a few shots of my carby before the motor was replaced

it may help

TOONGA

Post by **TOONGA** » Wed Nov 09, 2011 6:18 pm

and some more because I cannot put 10 images in a post

TOONGA