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  #1  
Old 2 Weeks Ago
Lionstrike Lionstrike is offline
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Default Well... it kinda.... works.

So I saw that carb overflow leak again... and I kinda of don't mind.

I love this bike.

First of all, after cleaning the carb... this thing fires right up. Look how quickly it springs to life.

Second of all, the carb overflow stops entirely once the bike it idling rendering it not a big deal. Like mentioned before, when I disconnected the malfunctioning one side of the throttle cable and it rebounds perfectly. It works very well.

...But this thing is LOUD!! I mean loud! Even some cheapo Amazon baffles in the drag pipes did precious little to tone it down. I've gotta get those decibels down... my neighbors are like 90, and I don't want to be a pain the the rear to them. Can anybody recommend some ideas on how to kill that noise? Not entirely mind you... I want to be visible, but a little less would be nice.

What do y'all think?


Last edited by Lionstrike; 2 Weeks Ago at 05:46..
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  #2  
Old 2 Weeks Ago
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Basic slip-on mufflers will quiet things down a little and improve your midrange too.
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Mine sounds this quiet with lollipops in it's drag pipes.

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RicThompson RicThompson is offline
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First off if your neighbors are in their 90's they're likely to be somewhat hearing impaired so unless you are doing burnouts at 2 a.m. I wouldn't be concerned with them. The overflow is a result of the gas level in the float bowl being too high. Either the float is in need of adjustment or your float needle needs to be looked at. Needles can be all metal or rubber tipped. The seat and tip need to be in good shape. Could also be as simple as debri in the gas. Is the inside of your tank rusty? Do you have a fuel filter on it?
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The gas is still escaping.
When starting, it overflows the bowl.
When idling, it overflows into the engine.
Does your oil tank smell like gas? Don't run the engine until you adjust the float and change the oil.
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Lionstrike, I feel like you have either an intake leak or loose and/or worn timing components in the nosecone. If you still have the advance mechanism in the nose cone, you may want to change out the advance springs; it’s a good idea to keep some spare springs in your tool bag for just in case. That “spitting/sneezing” thing it’s doing, does it clear up or improve any if you put the choke on?
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what you need is an s&s super e complete and some paughco type pipes.gonna be pricy but it works.on my '85 drag race bike its a super b and 2"pipes tho I change the pipes around.and don't go for that cheap ass china copy,doesent come with anything your gonna need.manifold,spacer,air cleaner,support
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Thanks for the advice all! That video of the other Ironhead running is super helpful. There doesn't seem to be anything "wrong" with this bike at all. It just really is that loud and arguably is supposed to be. You know... maybe I'll leave it alone after all.

Yeah, that carb leaks sometimes... but oddly it stopped when it's idling or running. I am going to have to bring it in for inspection soon anyway, maybe I just oughta have them have that headache as long as it has to be in the shop.

Thanks again for the advice guys.
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Mufflers will help get rid of the mid-range torque dip and make for better streetability. And probably still let you set off just about as many car alarms.

Carb: I wonder if the float is binding when the engine isn't running, and vibration frees it up. Or maybe when it runs, the excess fuel gets pulled into the intake tract and you don't see the overflow, which obviously isn't good.
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Lionstrike Lionstrike is offline
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Quote:
Originally Posted by GA_Ironhead View Post
Mufflers will help get rid of the mid-range torque dip and make for better streetability. And probably still let you set off just about as many car alarms.

Carb: I wonder if the float is binding when the engine isn't running, and vibration frees it up. Or maybe when it runs, the excess fuel gets pulled into the intake tract and you don't see the overflow, which obviously isn't good.
I can't say. I pulled it apart a couple of times and thought that I had it just right but maybe I am wrong. Is there a good tutorial on seating the float correctly somewhere? Maybe that's my problem.
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