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Warm-blooded?!
Posted: Fri Aug 03, 2012 1:34 pm
by talindsay
So I've read everywhere that the new 4t Stellas are cold-blooded - that they have long warm-up periods and need a lot of choke. Perhaps it's because it's so warm here right now, but I haven't even used the choke in the last 200 miles of commuting. I don't have to over-rev to start it or anything - just push the button or kick it over, and it idles smoothly even after sitting all night. Perhaps mine is unusually warm-blooded, or the shop richened it a touch, or it's just the recent warm weather, but my Triumph needs full choke for a long time to start under the same conditions, so I'm thinking the "cold-blooded" label doesn't apply to my Stella 4t.
Posted: Fri Aug 03, 2012 2:12 pm
by GeorgeP1111
FWIW, I can't relate to the Stella (I don't have one) but because a cold motor cannot vaporize the fuel enough, a choke should be needed to richen up the mixture (by creating a low pressure point in the venturi to draw up fuel) to allow starting. I have read thru the years that if a motor will start/run normally without a choke circuit it just means that the Slow Speed or Enricher (or main Jet?) circuit is running richer than it is needed to. That being said, yours appears to be starting fine, and if the idle and off idle response is good after it warms up.... "If it ain't broke don't fix it".
My ride is a 1967 Honda S90. Choke is required to start it, but immediately after starting I have to open the choke fully to keep it running. This is Ok, but when the motor is up to running temp, my Idle and off Idle is so rich to the point that I have to slip the clutch pulling away from a stop. Yes.... I'm attempting to figure this out. Trying to chase carb issues is sometimes confusing because it is also said that 90% of all carb problems are electrical.
Sounds like your Stella is running fine (just my .02 worth) ..... Enjoy the Summer.
George
Posted: Fri Aug 03, 2012 4:49 pm
by gilbee
i live in orange county which means the mornings are cold (because of the marine layer) so if the sun isn't out, i have to pull the choke to even get my new stella running.
and even after she's been sitting all day in the shade, if i leave work and the sun isn't out, i have to run with the choke out for about a mile.
so i guess Tessie is cold bloded. :/