RonVee Posted May 24, 2005 Share Posted May 24, 2005 Hi all, I have a 1979 Brat. 1.6L, Hitachi 2-barrel carb with an electric choke. Use it off-road to get around the mtn I live on. Just started acting up with idle problems, starting probelms etc. When I was looking around the carb when it was running, I noticed the Electric Choke Housing is very hot to the touch. The carb was normal temp when touched. Any ideas? Thanks in advance. Ron Link to comment Share on other sites More sharing options...
RonVee Posted May 28, 2005 Author Share Posted May 28, 2005 UPDATE: Tested with Ohm-meter. Got 9 ohms. Manual says 9 ohms normal. Any ideas on why the choke housing is getting so hot and why it is so hard to start? Runs fine after it has warmed up for a few minutes. (it's in the 80's here, so it will get worse when it gets colder. Thanks in advance Ron Link to comment Share on other sites More sharing options...
Skip Posted May 28, 2005 Share Posted May 28, 2005 the choke uses a bi-metal spring that is heated by a heating element It should get hot. As for your hard start well if the normal tune up parts check out, make sure the choke plate is fully closed when cold. My 78 became very hard to start cold.. reason: the points had worn closed to approx. 0.002", should be 0.018" Little burnishing and a regap - starts like a Suby should now. Link to comment Share on other sites More sharing options...
RonVee Posted May 31, 2005 Author Share Posted May 31, 2005 Skip, Thx for buzzing in. I know the Bi-Metal spring is heated by a heating element. But should it stay heated all the time? I thought that after the engine warmed up or after a certain amount of time it stops heating? Surely it the element doesn't constantly stay on (hot) all the time, does it? I thought it "pulled off" electrically after a specified time. I drove the car on the street in the late 80's -90's and never remember the housing getting this hot. I'm currently driving an 82 wagon and the housing in not hot at all. The points are fine and it runs perfect after it warms up. The choke plate is fully closed when cold. Still confused.. Link to comment Share on other sites More sharing options...
TomRhere Posted May 31, 2005 Share Posted May 31, 2005 The choke heating element is key "on" powered at all times. Really shouldn't be way hot to the touch though, don't remember mine ever getting that hot. Choke plate should be fully closed when set, but should open slightly after engine is running. There is a vacuum diaphram that pulls it open slightly after the engine starts. Maybe diaphram has a hole in it, or the hose to it has split. Remove top of air filter, set choke and verify it is closed, start engine and see if choke plate opens abit. If it don't, there's your problem. Getting to much gas with plate closed, funky idle/run stuff until choke opens full from heating element. just my .02 Link to comment Share on other sites More sharing options...
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