---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Sat 06/02/18: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:12 PM - Re: Chinese rebuild engine (Flibob) 2. 06:27 PM - Re: Re: Chinese rebuild engine (bill wade) ________________________________ Message 1 _____________________________________ Time: 02:12:36 PM PST US Subject: Yak-List: Re: Chinese rebuild engine From: "Flibob" Still working on this engine. Starts but won't run unless 1. Throttle is pumped constantly or 2 wobble is pumped or 3 primer is pumped. Any of which will keep engine running at 1500 +_. I have taken the carberater and fuel pump off running engine with no effect. Also cleaned points in both mags. Any ideas? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=480590#480590 ________________________________ Message 2 _____________________________________ Time: 06:27:50 PM PST US From: bill wade Subject: Re: Yak-List: Re: Chinese rebuild engine I had a problem similar to this in a Yak 52. A Friends Yak the problem was the fire valve was closed. Fire Valve fuel shut off valve, tried for about an hour till a friend came over sat there pumping the primer keeping it ru nning till it quit sat there and looked around and said is this lever suppo sed to be off? problem solved turned the fuel ON.#1 throttle pump probably after pressurizing the system, on a Yak the system primer-pump (wobble pump ) draws from the header tank by passing the fuel valve also why #2 the wobb le pump works. #3 primer CYL also by passes the fuel valve. so go to the en gine side of the fuel shutoff valve and see if you have fuel flow. I believe in a Yak when you run out of fuel there is 2 gals in the header t ank that can be accessed buy the primer pump as it draws fuel from the bott om of the tank the header tank is there to supply fuel to the engine invert ed and when upright that fuel is unavailable. =C2- On =8ESaturday=8E, =8EJune=8E =8E2 =8E, =8E2018=8E =8E05=8E:=8E21=8E: =8E38=8E =8EPM=8E =8EEDT, Flibob wrote: Still working on this engine. Starts but won't run unless 1. Throttle is pu mped constantly or 2 wobble is pumped or 3 primer is pumped.=C2- Any of w hich will keep engine running at 1500 +_.=C2- I have taken the carberater and fuel pump off running engine with no effect .=C2- Also cleaned points in both mags. Any ideas? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=480590#480590 S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.