Aero 80 again

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dbuzz77
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Aero 80 again

Post by dbuzz77 »

I cleaned and sealed the tank, put seafoam in the tank and carb till it was running, and rode it around in a circle , it seemed to run good. then i took it out running and it stalled and it will only run selectively now. I thought it was the petcock but when i take the gas line off and crank, gas comes out the line so i thought the petcock was ok. not sure what to try now short of taking the carb off. thanks
1984 Aero 80, 2003 Honda VFR, 2001 Kawasaki ZR-7S
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flybd5_juan
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Re: Aero 80 again

Post by flybd5_juan »

The gas is only supposed to come out of the petcock when the engine is running and there is vacuum from it to the petcock. Check and see if you installed fuel and vacuum backwards, otherwise remove and thoroughly clean the carb with CARB CLEANER SPRAY, not Seafoam.
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dbuzz77
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Re: Aero 80 again

Post by dbuzz77 »

fuel comes out in pulses when i crank
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Re: Aero 80 again

Post by dbuzz77 »

cleaned the carb and got it running, but i can't get the idle screw to work and sometimes just revs up on its own
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Re: Aero 80 again

Post by flybd5_juan »

Ok, so petcock is good and tubing is correct. But what do you mean you can't get the idle screw to work? It's a screw. It turns. Pretty simple stuff. :lol:
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dbuzz77
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Re: Aero 80 again

Post by dbuzz77 »

turn it all the way in or all the way out or in between , nothing changes
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Re: Aero 80 again

Post by flybd5_juan »

Did you disassemble the carb to clean it? Sounds like something in the carb is clogged. Did you change the air screw position, or remove and reinstall it, and if so did you follow the instructions in the service manual to set it correctly?
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Re: Aero 80 again

Post by dbuzz77 »

cleaned the carb (it had been done by the p.o. and wasn't really dirty) , ran some thin wire through all the holes and blew it out gently. I didn't touch the air screw as it still has a big cap on it and didn't want to break something taking it off
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Re: Aero 80 again

Post by flybd5_juan »

That's the right thing to do with the air screw. I can't think of anything else from way over here. Sorry.
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Re: Aero 80 again

Post by dbuzz77 »

ok thanks. when i put the carb back on the back bolt would not tighten as if it is stripped so i am putting a nut on it so i can tighten it for my next try.
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Re: Aero 80 again

Post by dbuzz77 »

Used a longer bolt now the carb is tight. it's really no better. found out now my exhaust gasket is blown out, i'll have to fix it first , i have had a 2 strokes run goofy before with a hole in the exhaust.
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Re: Aero 80 again

Post by flybd5_juan »

dbuzz77 wrote: Thu Aug 20, 2020 6:15 pm Used a longer bolt now the carb is tight. it's really no better. found out now my exhaust gasket is blown out, i'll have to fix it first , i have had a 2 strokes run goofy before with a hole in the exhaust.
All the Honda 2-strokes have exhausts specifically designed for the engine. If there is a hole it will indeed run "goofy".
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Re: Aero 80 again

Post by dbuzz77 »

took the exhaust off, the washer was good but it was bolted on very loosely and it was leaking. bolted it back and doesn't do the erratic high revs and starts with no throttle but still won't idle more than 2 or 3 seconds
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Re: Aero 80 again

Post by flybd5_juan »

So try something else. Check the carb float chamber. See how much fuel is in there. Make sure the vent screw or tube is not clogged. Make sure the float is not gummed up.
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