Broken down

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Steve_D

Original Poster:

13,756 posts

259 months

Sunday 18th May 2008
quotequote all
Broke down this morning for a while.
Went out for a run and stopped on route to meet up with others.
Came to start up and the engine fired but with a loud blowback through the carb which it does from time to time. From then on it would turn over but with no indication it was even trying to catch.
The others went on and I phoned the AA.
Whilst waiting I took off the air cleaner to see if fuel was getting through. Noticed the electric choke butterfly fully closed then thought that as the engine was warm it should have been slightly open.

It was jammed closed, obviously by the backfire, and took pressure from both thumbs to clear it. Started fine and I had a quick run up to meet everyone at the start of our little drive in the country.

Steve

steve_d

Original Poster:

13,756 posts

259 months

Sunday 18th May 2008
quotequote all
GTWayne said:
How much more persuasion does one need? Bin that God awful feckin carburetor, NOW!


I will as soon as I get my current project on the road.
I have already fitted the AFR meter and it fully confirms how crap the carb is.
The readings are all over the shop.
I'm seeing 8 or 9 at tickover and part throttle.
10 ish in the cruise
And I have hit 20 under acceleration. This last one is not good as I could see a hole in a piston.

Steve

Steve_D

Original Poster:

13,756 posts

259 months

Sunday 18th May 2008
quotequote all
San Diego GTR said:
....... What was causing it to bind?.....
The blowback on startup just drove it into the housing. Once I had forced it out it is free moving.

Steve