This is my second post to this site. My first was about the starter pull cord that would not rewind and, thanks to replies I received, I have it fixed and working perfectly now! I now have another problem and am hoping for some similar good advice. The motor is a 1973 Evinrude 25hp model 25302A.
The part in question is the linkage between the throttle and the choke. I have looked at the diagram that I found though the sticky at the top of this forum, entitled ""top secret file"....'manual and diagrams'. On the diagram, there is a connecting rod between the choke and throttle that is labeled #54 LINK, throttle lever to choke bellcrank. While disassembling this linkage last night, a small plastic retainer was lost and then subsequently found today (although it was found broken in half!). It attaches #54 directly to the plate on #12, the throttle shaft. However, according to the diagram, this little plastic retainer does not even exist....so I'm wondering if someone may have placed it there as a substitute for another part. In the diagram, it appears that there is another part, #73/74, Arm Assy, shaft and screw/arm to shaft that I do not have on this motor. This is where I am getting quite confused!!!
First of all, I can't quite make sense of the purpose of this linkage. I don't have much knowledge of these motors so please bear with me as I ask for an explanation. As far as I can tell, this linkage seems to serve the purpose of closing the butterfly valve (choke) when the throttle is engaged....is this correct or am I way off on this? As I position everything into place (with the broken plastic retainer) and then move the parts, it seems that all it does is close this valve when the throttle is opened.
If anyone is familiar with this linkage, it would be really helpful to me if you could explain what the function of it is. Do I need to find parts 73 and 74 to get it to work properly or should I be looking for another plastic retainer like the one that broke off of it? I am at a total loss for what to do next, so any help with this would be a step closer to getting it all figured out. Thanks!
The part in question is the linkage between the throttle and the choke. I have looked at the diagram that I found though the sticky at the top of this forum, entitled ""top secret file"....'manual and diagrams'. On the diagram, there is a connecting rod between the choke and throttle that is labeled #54 LINK, throttle lever to choke bellcrank. While disassembling this linkage last night, a small plastic retainer was lost and then subsequently found today (although it was found broken in half!). It attaches #54 directly to the plate on #12, the throttle shaft. However, according to the diagram, this little plastic retainer does not even exist....so I'm wondering if someone may have placed it there as a substitute for another part. In the diagram, it appears that there is another part, #73/74, Arm Assy, shaft and screw/arm to shaft that I do not have on this motor. This is where I am getting quite confused!!!
First of all, I can't quite make sense of the purpose of this linkage. I don't have much knowledge of these motors so please bear with me as I ask for an explanation. As far as I can tell, this linkage seems to serve the purpose of closing the butterfly valve (choke) when the throttle is engaged....is this correct or am I way off on this? As I position everything into place (with the broken plastic retainer) and then move the parts, it seems that all it does is close this valve when the throttle is opened.
If anyone is familiar with this linkage, it would be really helpful to me if you could explain what the function of it is. Do I need to find parts 73 and 74 to get it to work properly or should I be looking for another plastic retainer like the one that broke off of it? I am at a total loss for what to do next, so any help with this would be a step closer to getting it all figured out. Thanks!
