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Post by smooch on Mar 14, 2020 15:09:38 GMT -5
I cleaned the carb thoroughly. I used my carb cleaning tool with brushes took it apart soaked it in carb cleaner cleared all the ports out cleaned my jets. Brand new main jet #88. I use 93 octane only use a little techron fuel system cleaner and marvel mystery out to keep the carbon off the piston and valves. I ordered a new CDI and coil. I looked for the port you were talking about. Is it behind the throttle plate? I'm going to check the wiring to make sure there is power going to the fuel enriched. Thankyou for your help. You guys on this site are great. I'm going to watch that video now. I'll let you know how I make out.
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Post by smooch on Mar 14, 2020 15:11:05 GMT -5
I cleaned the carb thoroughly. I used my carb cleaning tool with brushes took it apart soaked it in carb cleaner cleared all the ports out cleaned my jets. Brand new main jet #88. I use 93 octane only use a little techron fuel system cleaner and marvel mystery oil to keep the carbon off the piston and valves. I ordered a new CDI and coil. I looked for the port you were talking about. Is it behind the throttle plate? I'm going to check the wiring to make sure there is power going to the fuel enriched. Thankyou for your help. You guys on this site are great. I'm going to watch that video now. I'll let you know how I make out.
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Post by smooch on Mar 14, 2020 15:11:54 GMT -5
I cleaned the carb thoroughly. I used my carb cleaning tool with brushes took it apart soaked it in carb cleaner cleared all the ports out cleaned my jets. Brand new main jet #88. I use 93 octane only use a little techron fuel system cleaner and marvel mystery oil to keep the carbon off the piston and valves. I ordered a new CDI and coil. I looked for the port you were talking about. Is it behind the throttle plate? I'm going to check the wiring to make sure there is power going to the fuel enricher. Thankyou for your help. You guys on this site are great. I'm going to watch that video now. I'll let you know how I make out.
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Post by mikehailwood on Mar 14, 2020 17:05:47 GMT -5
I have done this test recently. On the bench I hooked the bystarter leads to a 12 volt battery. To provide the heat I used a 100 watt incandescent bulb. I got no action until my bystarter was warmed to about 175 degrees F. At that temp the needle began to move.
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Post by FrankenMech on Mar 15, 2020 13:18:10 GMT -5
The enricher has it's own internal heater, that is what the leads are for. No light-bulb required.
You guys should really learn to use the quote function. See forum help.
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Post by smooch on Mar 16, 2020 18:58:12 GMT -5
If it won't start when cold, the carb part that richens the mixture may not be working. You may be able to hold a hand over the intake when cranking, which would make more fuel get pulled into the intake than normal to take the place of the byvalve(enrichment). Alternatives to check if lean mix is the cause of no-start are to squirt fuel into the inlet of the carb, or cycle the throttle several times if your carb has an accelerator pump. The pump will spritz a bit of fuel into the carb, towards the throttle plate when operated by the twist grip. There is a port at about the 3:00 position on the carb inlet that flows air to the byvalve. If you can blow thru it when cold, the byvalve is open to allow extra fuel, if not, it is closed and will not pass fuel. There is a chamber under the byvalve(built into the float bowl) that is filled from the float bowl via a tiny port in the 'wall' of the float bowl. If plugged, no fuel, and no enrichment of the cold mix, harder starting. tom
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Post by smooch on Mar 16, 2020 19:05:19 GMT -5
Can't I just take the enricher off the carburetor keep it connected and turn the ignition on? To see if it comes out and is working. That only makes sense because the battery is the only thing making this work! I don't see it heating up to 175 degrees in a split second hitting the start button!!
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Post by FrankenMech on Mar 16, 2020 21:27:08 GMT -5
The enricher is powered from the stator only when the engine is running. It is not powered by the battery.
The enricher needle is normally retracted when cold and allows fuel to pass from the fuel bowl to the intake to enrich the mixture.
When the engine has been running and heats up the enricher heats up (electrically) also and the needle extends to close off the extra fuel supply.
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Post by mikehailwood on Mar 16, 2020 21:32:22 GMT -5
"The enricher has its' own internal heater, that is what the leads are for. No light-bulb required."
I did not know that.
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Post by FrankenMech on Mar 17, 2020 0:18:02 GMT -5
If you look for them there are lots of diagrams that show how the enricher works, but as usual on the internet, some are better than others.
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Post by FrankenMech on Mar 17, 2020 15:46:00 GMT -5
If the enricher needle fails to extend when 12V is applied to the leads the unit is bad and needs to be replaced.
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Post by smooch on Mar 26, 2020 23:53:06 GMT -5
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Post by smooch on Mar 27, 2020 0:00:48 GMT -5
I put a new fuel enricher in and re gapped the valves and still starts hard it seems a little better but still starting hard. Help Mr. Wizzard!!!!!
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Post by smooch on Mar 27, 2020 10:12:34 GMT -5
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Post by smooch on Mar 27, 2020 10:20:14 GMT -5
Any Ideas? It took me 2hrs to do what someone else could have done in less than a hour. I'm 64 and disabled and that hurt. And the part u were talking about at the 3:00 position. Is it behind the throttle bracket? Someone told me the no rev limit CDI may be advancing my timing too much to make hard starts!! Is this true?
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