> -----Original Message-----
> From: jon@dakota-truck.net
>
> Just wanted to run this one past y'all to see if there is something
> I am missing. :-)
>
> I'm trying to get a roto-tiller running which has been
> sitting unused for probably 10-15 years. <snip>
>
> Basically what it comes down to is the engine will stay running
> as long as I keep pouring gas or starter fluid down the carb. I
> am assuming this means the engine just isn't getting enough fuel
> for some reason. I've checked for air leaks downstream of the
> carb and there don't seem to be any, so I was basically working
> off the assumption that the carb wasn't providing enough fuel.
> I've taken the carb apart several times and cleaned it really
> well; it seems to be a very simple design, none of the fuel
> passages or orifices seem to be blocked.
>
> Is there anything that I'm missing? I'm basically thinking
> that the carb isn't providing enough fuel, but is there any
> other reason why a motor wouldn't stay running unless it was
> being provided extra gas or fed with starter fluid? <snip>
> I have confirmed that there is spark, but would a weak spark
> or incorrect gap cause this?
You might try a new plug to eliminate that possibility.
> What about incorrect timing?
Is it even adjustable?
> Low compression?
Isn't that a design "feature" of these little engines? ;-)
Seriously Jon, I've encountered the same symptoms with my chipper/shredder
when I've failed to run out all of the gas at the end of the season. In my
case it was a very small orifice in the carb/float bowl that filled with
varnish or debris. It was very difficult to see that there was even a
passage there but once I found it and ran a small wire through it all was
well. It might take a bright light and a magnifying glass to see it.
My long term solution has been to always run out all of the gas before
winter storage. I've had no problems since.
HTH.
Ray
This archive was generated by hypermail 2b29 : Fri Sep 01 2006 - 10:07:45 EDT