rangerreece
RangerReece
Dude, your my hero!
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My New to me R80/7
- Thread starter evojet
- Start date
evojet
New member
Hahahaha. Thank you.
evojet
New member
Sound advice. I am taking it slow and just getting comfortable riding.
evojet
New member
Trying to sort out an annoying problem when in 4th or 5th gear at 4-5k RPM has lack of power and a slight bucking. Once past the 5k rpm it pulls strong and smooth. Replaced the things I had not when doing the rebuild. New plug wires and and floats and needles. Sad to say it has not helped 
evojet
New member
Carb synch went well. Got them pretty close. This weekend I am going to check the AFRs using my gauge I use for car tuning. So maybe I will catch something there.
m_stock10506
Well-known member
Trying to sort out an annoying problem when in 4th or 5th gear at 4-5k RPM has lack of power and a slight bucking. Once past the 5k rpm it pulls strong and smooth. Replaced the things I had not when doing the rebuild. New plug wires and and floats and needles. Sad to say it has not helped
Sounds like you're running okay once you get to the main jet. Do you have the needles set to the right notch? If set too low you'll run lean until the needle is fully lifted and then you'll have switched fueling to the main jet.
evojet
New member
Can you elaborate on what notch you are talking about? Perhaps a picture would help. Thank you.
m_stock10506
Well-known member
The attached drawing is the top portion of a carb needle. It regulates the flow of gas through the needle jet. If you have the needle set at position 1 - closest to the top - the needle will be inserted into the jet more than if it was in other positions. Since the needle is deeper into the jet it is restricting the flow of gas MORE, making it run leaner. If you put the needle into position 2, 3 etc. each higher position raises the needle so it's relative position in the jet is higher and it restricts gas flow LESS, making it run richer.
When you twist the throttle you end up raising the needle. By putting the starting point of the needle into the "richer" or higher numbered positions you are effectively raising the needle a little bit.
evojet
New member
I will check it out when I get a chance. I didn't remove the needles when I cleaned everything. And actually had no idea they had different positions on the needle. Thank you, really appreciate the help.
That Bing book is an essential reference for any Airhead. Any one who reads this and wants to have a fighting chance to keep their Airheads running well should spend the money to get a copy.
m_stock10506
Well-known member
evojet
New member
I'll read through the snowbum again.
The numbers are 64/32/201
Much appreciated. Thank you!!!
evojet
New member
I keep forgetting to order that book. I'll call tomorrow and finally get it. Thanks.
Dmftoy1
Member
Pretty sure you have a typo there on the third # - should be two different third numbers left/right side and it will be like:
64/32/9 & 64/32/10 or 64/32/11 & 64/32/12
I'll check my book though for 201 as they might have jumped up for the /7's?
Sent from my iPad using Tapatalk
The 201 and 202 carbs are listed as belonging to an R80 (also the R45 series but pretty sure it's not that). Also, the carb appears to be the flat top series. The clip position for the jet needle is shown to be the #3 position, as measured from the blunt end of the needle. This would run the carb at the next to highest richest condition for the needle.
