Posted by BrianNZ on January 9, 2009, 3:08 pm
Wheeled the KTM out last night and it wouldn't start on the usual 1/2
choke.....so I gave it full choke (never had to do that before?) and it
burst into life, but with a definate 'miss'. Even when warmed up,
anything less than full choke and it would drop one cyl. and die. Touch
the throttle when the choke is on full.....and it dies. I was hoping it
would cure itself overnight but it hasn't!
maybe it's sulking cos it knows it's being parked up?
Luckily the nearest KTM dealer is a 3 hour ride away........POS. Not a
happy camper!
Posted by . on January 9, 2009, 3:48 pm
> Wheeled the KTM out last night and it wouldn't start on the usual 1/2
> choke.....so I gave it full choke (never had to do that before?) and it
> burst into life, but with a definate 'miss'. Even when warmed up,
> anything less than full choke and it would drop one cyl. and die. Touch
> the throttle when the choke is on full.....and it dies. I was hoping it
> would cure itself overnight but it hasn't!
Is it fuel injected, or carbureted?
Carbureted bikes act like that when the idle circuits are plugged up.
That's when it's time to add some clear carburetor cleaner to the fuel
to dissolve deposits in the carbs.
Posted by SBH on January 9, 2009, 7:47 pm
>Is it fuel injected, or carbureted?
>Carbureted bikes act like that when the idle circuits are plugged up.
>That's when it's time to add some clear carburetor cleaner to the fuel
>to dissolve deposits in the carbs.
He had to use the choke, therefore, it's a carb.
Clean the carb out, it's most likely gummed up. You can try some Seafoam or
other cleaning additive first. If that doesn't work, clean the carbs.
Posted by . on January 9, 2009, 8:15 pm
> Clean the carb out, it's most likely gummed up. You can try some Seafoam or
> other cleaning additive first. If that doesn't work, clean the carbs.
Seafoam is mostly petroleum distillate with light oil to protect
outboard motors and personal watercraft from rusting internally.
Seafoam might help a stuck fuel injector, though.
A clear carburetor cleaner containing acetone, toluene, xylene, and
methyl alcohol is best for quickly cleaning the gum and varnish out of
carburetors.
In the US, I recommend adding 4 or 5 ounces of Berryman B12 Choke and
Carburetor Cleaner in the non-aerosol form to a full tank of gasoline
to clean the carbs.
Gunk and STP carb cleaners in the aerosol can work too.
Posted by BrianNZ on January 9, 2009, 8:53 pm
SBH wrote:
>
>> Is it fuel injected, or carbureted?
>
>> Carbureted bikes act like that when the idle circuits are plugged up.
>
>> That's when it's time to add some clear carburetor cleaner to the fuel
>> to dissolve deposits in the carbs.
>
> He had to use the choke, therefore, it's a carb.
>
> Clean the carb out, it's most likely gummed up. You can try some Seafoam or
> other cleaning additive first. If that doesn't work, clean the carbs.
>
>
It will be trailed to the dealer then, as it's still under warranty.
It's time for it's 15,000km service anyway. It was running fine a week
ago. :(
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> choke.....so I gave it full choke (never had to do that before?) and it
> burst into life, but with a definate 'miss'. Even when warmed up,
> anything less than full choke and it would drop one cyl. and die. Touch
> the throttle when the choke is on full.....and it dies. I was hoping it
> would cure itself overnight but it hasn't!