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#21
posted to rec.boats
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Fuel/Oil ratio for old Sea King?
On 5/2/2019 8:42 AM, John H. wrote:
On Thu, 2 May 2019 08:01:06 -0400, "Mr. Luddite" wrote: On 5/2/2019 7:47 AM, John H. wrote: On Thu, 2 May 2019 07:36:51 -0400, "Mr. Luddite" wrote: On 5/2/2019 7:19 AM, John H. wrote: On Thu, 2 May 2019 06:42:24 -0400, "Mr. Luddite" wrote: On 5/1/2019 10:24 PM, Its Me wrote: On Wednesday, May 1, 2019 at 9:25:04 PM UTC-4, wrote: On Wed, 1 May 2019 16:39:31 -0700 (PDT), Its Me wrote: On Wednesday, May 1, 2019 at 7:24:07 PM UTC-4, wrote: On Wed, 1 May 2019 15:56:06 -0700 (PDT), wrote: I just got a old 5hp sea king and it's not locked up but I have no idea how to start it. Help plz! Depending on how old it is at least 50:1 but some of the older ones may have been 25:1 First be sure you have a healthy spark. That usually takes 2 people if you don't have a spark tester. If it is sparking you can try just filling it up and giving it a yank. If you are not sure you are getting gas out of the carb, squirt some premix in the throat, open the throttle all the way and yank it. You will start out too rich but after a few pulls the mix will be OK enough to pop. If it runs a few seconds and stops, suspect a carb problem or a fuel delivery problem. They need three things to run... fuel, air, and spark. Greg's method will get you started. Don't forget compression ;-) You actually don't need much of that. I had a friend growing up that had a neighbor with a "collection" of those old single cylinder engines that fired once every 4-6 revolutions. They have almost no compression, and run just fine, sort-of. Similar to this: http://prestonservices.co.uk/item/horizontal-single-cylinder-workshop-engine/ It was pretty cool to go over on a weekend and see him fire one up. Many engines today used in lawn mowers, some motorcycles and other small engine applications have automatic compression relief valves that vents the cylinder compression until the starter (or pull rope) gets the engine rotation up to a speed that will support starting. Once started, the compression relief valve automatically closes. I remember an old gas engine on something that had a manual compression relief valve. It partially vented (lowering compression) until the engine fired at which time you closed the relief valve. --- This email has been checked for viruses by AVG. https://www.avg.com Some of the old Moto Guzzis had compression relief valves. I think I remember having one on a motorcycle I had once also. Can't remember which one it was. Probably one of your Harleys. Amazon sells them. Here's a listing of what models it fits: S&S Electric Compression Release for Harley DavidsonBike Fitments1999-2012 Harley Davidson FLHR Road King1999-2012 Harley Davidson FLHRCI Road King Classic2000-2006 Harley Davidson FLHRI Road King2004-2007 Harley Davidson FLHRSI Road King Custom1999-2009 Harley Davidson FLHT Electra Glide Standard1999-2012 Harley Davidson FLHTC Electra Glide Classic1999-2006 Harley Davidson FLHTCI Electra Glide Classic2007-2012 Harley Davidson FLHTCU Electra Glide Ultra Classic1999-2006 Harley Davidson FLHTCUI Electra Glide Ultra Classic2009-2012 Harley Davidson FLHTCUTG Tri Glide Ultra Classic2003-2006 Harley Davidson FLHTI Electra Glide Standard2010-2012 Harley Davidson FLHTK Electra Glide Ultra Limited2006-2012 Harley Davidson FLHX Street Glide2006 Harley Davidson FLHXI Street Glide2012 Harley Davidson FLHXXX Street Glide Trike2010 Harley Davidson FLHXXX Street Glide Trike2006 Harley Davidson FLST Heritage Softail2000-2012 Harley Davidson FLSTC Heritage Softail Classic2001-2006 Harley Davidson FLSTCI Heritage Softail Classic2000-2012 Harley Davidson FLSTF Fat Boy2010-2012 Harley Davidson FLSTFB Fat Boy Lo2001-2006 Harley Davidson FLSTFI Fat Boy2006 Harley Davidson FLSTI Heritage Softail2005-2012 Harley Davidson FLSTN Softail Deluxe2005-2006 Harley Davidson FLSTNI Softail Deluxe2000-2003 Harley Davidson FLSTS Heritage Springer2008-2012 Harley Davidson FLSTSB Cross Bones2005-2007 Harley Davidson FLSTSC Softail Springer Classic2005-2006 Harley Davidson FLSTSCI Softail Springer Classic2001-2003 Harley Davidson FLSTSI Heritage Springer1999-2009 Harley Davidson FLTR Road Glide1999-2006 Harley Davidson FLTRI Road Glide2012 Harley Davidson FLTRU Road Glide Ultra2010-2012 Harley Davidson FLTRX Road Glide Custom2008-2009 Harley Davidson FXCW Rocker2008-2012 Harley Davidson FXCWC Rocker C1999-2010 Harley Davidson FXD Dyna My "rememberer" is slowly warming up. I think I was wrong ... it wasn't on a motorcycle. I have a hazy memory it was on an old outboard engine on a boat when I was a kid. Can't be sure. Some of the files in my brain are slowly becoming corrupted. :-) You surely owned one of the Harleys in that list! I did but if it had a compression relief valve it was of the automatic type, not manual. The one I remember was a little knob on the side of an outboard engine that you pulled out when first pulling the manual cord start. Once it fired up you pushed the knob back in. If you left it out the engine would run but wouldn't rev up or develop any power. |
#22
posted to rec.boats
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Fuel/Oil ratio for old Sea King?
On Thu, 2 May 2019 08:52:59 -0400, "Mr. Luddite" wrote:
On 5/2/2019 8:42 AM, John H. wrote: On Thu, 2 May 2019 08:01:06 -0400, "Mr. Luddite" wrote: On 5/2/2019 7:47 AM, John H. wrote: On Thu, 2 May 2019 07:36:51 -0400, "Mr. Luddite" wrote: On 5/2/2019 7:19 AM, John H. wrote: On Thu, 2 May 2019 06:42:24 -0400, "Mr. Luddite" wrote: On 5/1/2019 10:24 PM, Its Me wrote: On Wednesday, May 1, 2019 at 9:25:04 PM UTC-4, wrote: On Wed, 1 May 2019 16:39:31 -0700 (PDT), Its Me wrote: On Wednesday, May 1, 2019 at 7:24:07 PM UTC-4, wrote: On Wed, 1 May 2019 15:56:06 -0700 (PDT), wrote: I just got a old 5hp sea king and it's not locked up but I have no idea how to start it. Help plz! Depending on how old it is at least 50:1 but some of the older ones may have been 25:1 First be sure you have a healthy spark. That usually takes 2 people if you don't have a spark tester. If it is sparking you can try just filling it up and giving it a yank. If you are not sure you are getting gas out of the carb, squirt some premix in the throat, open the throttle all the way and yank it. You will start out too rich but after a few pulls the mix will be OK enough to pop. If it runs a few seconds and stops, suspect a carb problem or a fuel delivery problem. They need three things to run... fuel, air, and spark. Greg's method will get you started. Don't forget compression ;-) You actually don't need much of that. I had a friend growing up that had a neighbor with a "collection" of those old single cylinder engines that fired once every 4-6 revolutions. They have almost no compression, and run just fine, sort-of. Similar to this: http://prestonservices.co.uk/item/horizontal-single-cylinder-workshop-engine/ It was pretty cool to go over on a weekend and see him fire one up. Many engines today used in lawn mowers, some motorcycles and other small engine applications have automatic compression relief valves that vents the cylinder compression until the starter (or pull rope) gets the engine rotation up to a speed that will support starting. Once started, the compression relief valve automatically closes. I remember an old gas engine on something that had a manual compression relief valve. It partially vented (lowering compression) until the engine fired at which time you closed the relief valve. --- This email has been checked for viruses by AVG. https://www.avg.com Some of the old Moto Guzzis had compression relief valves. I think I remember having one on a motorcycle I had once also. Can't remember which one it was. Probably one of your Harleys. Amazon sells them. Here's a listing of what models it fits: S&S Electric Compression Release for Harley DavidsonBike Fitments1999-2012 Harley Davidson FLHR Road King1999-2012 Harley Davidson FLHRCI Road King Classic2000-2006 Harley Davidson FLHRI Road King2004-2007 Harley Davidson FLHRSI Road King Custom1999-2009 Harley Davidson FLHT Electra Glide Standard1999-2012 Harley Davidson FLHTC Electra Glide Classic1999-2006 Harley Davidson FLHTCI Electra Glide Classic2007-2012 Harley Davidson FLHTCU Electra Glide Ultra Classic1999-2006 Harley Davidson FLHTCUI Electra Glide Ultra Classic2009-2012 Harley Davidson FLHTCUTG Tri Glide Ultra Classic2003-2006 Harley Davidson FLHTI Electra Glide Standard2010-2012 Harley Davidson FLHTK Electra Glide Ultra Limited2006-2012 Harley Davidson FLHX Street Glide2006 Harley Davidson FLHXI Street Glide2012 Harley Davidson FLHXXX Street Glide Trike2010 Harley Davidson FLHXXX Street Glide Trike2006 Harley Davidson FLST Heritage Softail2000-2012 Harley Davidson FLSTC Heritage Softail Classic2001-2006 Harley Davidson FLSTCI Heritage Softail Classic2000-2012 Harley Davidson FLSTF Fat Boy2010-2012 Harley Davidson FLSTFB Fat Boy Lo2001-2006 Harley Davidson FLSTFI Fat Boy2006 Harley Davidson FLSTI Heritage Softail2005-2012 Harley Davidson FLSTN Softail Deluxe2005-2006 Harley Davidson FLSTNI Softail Deluxe2000-2003 Harley Davidson FLSTS Heritage Springer2008-2012 Harley Davidson FLSTSB Cross Bones2005-2007 Harley Davidson FLSTSC Softail Springer Classic2005-2006 Harley Davidson FLSTSCI Softail Springer Classic2001-2003 Harley Davidson FLSTSI Heritage Springer1999-2009 Harley Davidson FLTR Road Glide1999-2006 Harley Davidson FLTRI Road Glide2012 Harley Davidson FLTRU Road Glide Ultra2010-2012 Harley Davidson FLTRX Road Glide Custom2008-2009 Harley Davidson FXCW Rocker2008-2012 Harley Davidson FXCWC Rocker C1999-2010 Harley Davidson FXD Dyna My "rememberer" is slowly warming up. I think I was wrong ... it wasn't on a motorcycle. I have a hazy memory it was on an old outboard engine on a boat when I was a kid. Can't be sure. Some of the files in my brain are slowly becoming corrupted. :-) You surely owned one of the Harleys in that list! I did but if it had a compression relief valve it was of the automatic type, not manual. The one I remember was a little knob on the side of an outboard engine that you pulled out when first pulling the manual cord start. Once it fired up you pushed the knob back in. If you left it out the engine would run but wouldn't rev up or develop any power. The old Moto Guzzi had a manual valve also, with a cable attached up by the handlebar somewhere. |
#24
posted to rec.boats
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Fuel/Oil ratio for old Sea King?
wrote:
On Wed, 1 May 2019 19:24:04 -0700 (PDT), Its Me wrote: You actually don't need much of that. I had a friend growing up that had a neighbor with a "collection" of those old single cylinder engines that fired once every 4-6 revolutions. They have almost no compression, and run just fine, sort-of. Similar to this: http://prestonservices.co.uk/item/horizontal-single-cylinder-workshop-engine/ It was pretty cool to go over on a weekend and see him fire one up. === I think those were engines with "spark interrupter" governors. They had big fly wheels with a lot of momentum. In order to maintain a constant speed and prevent over revving, the governor would actually disable the ignition until the speed came back down. I once saw a big collection at a county fair in upstate NY, and they were a lot of fun to watch. Running under load they'd generally fire on every compression stroke. --- This email has been checked for viruses by AVG. https://www.avg.com They were make-break ignition engines. And I think the intake valve was kept open to prevent overspeed. They also disconnected the battery, so no spark at same time. Was to save battery juice. The battery disconnect was not on all engines. Make break had the points inside the combustion chamber and no condenser to suppress the spark. |
#25
posted to rec.boats
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Fuel/Oil ratio for old Sea King?
Bill
wrote: On Wed, 1 May 2019 19:24:04 -0700 (PDT), Its Me wrote: You actually don't need much of that. I had a friend growing up that had a neighbor with a "collection" of those old single cylinder engines that fired once every 4-6 revolutions. They have almost no compression, and run just fine, sort-of. Similar to this: http://prestonservices.co.uk/item/horizontal-single-cylinder-workshop-engine/ It was pretty cool to go over on a weekend and see him fire one up. === I think those were engines with "spark interrupter" governors. They had big fly wheels with a lot of momentum. In order to maintain a constant speed and prevent over revving, the governor would actually disable the ignition until the speed came back down. I once saw a big collection at a county fair in upstate NY, and they were a lot of fun to watch. Running under load they'd generally fire on every compression stroke. --- This email has been checked for viruses by AVG. https://www.avg.com They were make-break ignition engines. And I think the intake valve was kept open to prevent overspeed. They also disconnected the battery, so no spark at same time. Was to save battery juice. The battery disconnect was not on all engines. Make break had the points inside the combustion chamber and no condenser to suppress the spark. ....... What got me was a lot of the old ww1 biplane radials were setthrottle (wide open) when the guy hit the prop you were gone! Anyhow, to control the engine you actually killed the Magnito and let off if it. Making the engine cut out then refire. Then Tom Seleck is in the dog fight in High Road To China, there’s a good demonstration of the cut-out technique. Bye, Bill, yes there’s a local guy that has a “hit n miss” engine with the point breaker built in the head. |
#26
posted to rec.boats
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Fuel/Oil ratio for old Sea King?
On Wed, 1 May 2019 15:56:06 -0700 (PDT), wrote: I just got a old 5hp sea king and it's not locked up but I have no idea how to start it. Help plz! Depending on how old it is at least 50:1 but some of the older ones may have been 25:1 First be sure you have a healthy spark. That usually takes 2 people if you don't have a spark tester. If it is sparking you can try just filling it up and giving it a yank. If you are not sure you are getting gas out of the carb, squirt some premix in the throat, open the throttle all the way and yank it. You will start out too rich but after a few pulls the mix will be OK enough to pop. If it runs a few seconds and stops, suspect a carb problem or a fuel delivery problem. ...... I plan on running my 115 2-smoker mercury on 40:1 |
#27
posted to rec.boats
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Fuel/Oil ratio for old Sea King?
Tim wrote:
Bill wrote: On Wed, 1 May 2019 19:24:04 -0700 (PDT), Its Me wrote: You actually don't need much of that. I had a friend growing up that had a neighbor with a "collection" of those old single cylinder engines that fired once every 4-6 revolutions. They have almost no compression, and run just fine, sort-of. Similar to this: http://prestonservices.co.uk/item/horizontal-single-cylinder-workshop-engine/ It was pretty cool to go over on a weekend and see him fire one up. === I think those were engines with "spark interrupter" governors. They had big fly wheels with a lot of momentum. In order to maintain a constant speed and prevent over revving, the governor would actually disable the ignition until the speed came back down. I once saw a big collection at a county fair in upstate NY, and they were a lot of fun to watch. Running under load they'd generally fire on every compression stroke. --- This email has been checked for viruses by AVG. https://www.avg.com They were make-break ignition engines. And I think the intake valve was kept open to prevent overspeed. They also disconnected the battery, so no spark at same time. Was to save battery juice. The battery disconnect was not on all engines. Make break had the points inside the combustion chamber and no condenser to suppress the spark. ...... What got me was a lot of the old ww1 biplane radials were setthrottle (wide open) when the guy hit the prop you were gone! Anyhow, to control the engine you actually killed the Magnito and let off if it. Making the engine cut out then refire. Then Tom Seleck is in the dog fight in High Road To China, there’s a good demonstration of the cut-out technique. Bye, Bill, yes there’s a local guy that has a “hit n miss” engine with the point breaker built in the head. We had a large collection at the county fair grounds. All donated. New manager auctioned them off. I think he gets a percentage of profits. |
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