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Engine Idles but bogs down with throttle..??

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Old May 31, 2012 | 07:01 PM
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lakegeorgia's Avatar
lakegeorgia
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Default Engine Idles but bogs down with throttle..??

I have an 85 Ironhead.

Engine starts and idles like a champ. Once it is given throttle it bogs down, misfires and runs like hell. Started a month ago at high RPMs and has gotten worse and worse until now where it will only idle

So far I have..
put in new plugs, cleaned entire carb and jets, checked the fuel flow from tank to petcock to filter to carb, sealed pipes at exhaust flange

Problem still persists.. ideas?
 
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Old May 31, 2012 | 08:52 PM
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Pushrods? They need to be adjusted on ironheads somewhat regularly.
Ignition? If it has been converted back to points, have you set the gap and checked/lubed the advance mechanism?
 
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Old May 31, 2012 | 09:11 PM
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Is the float in the carb set properly?
 
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Old May 31, 2012 | 09:14 PM
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soft 02
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High speed jet clogged?
 
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Old Jun 8, 2012 | 05:50 PM
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lakegeorgia
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Ok heres an update..

Tested the coil at primary and secondary locations.. tested just fine
Tore the whole carb apart again.. no clogged jets etc cleaned everything..
cleaned all hoses etc in the fuel system..

Still boggs down with throttle...?

Ideas??
 
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Old Jun 8, 2012 | 06:01 PM
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Intake leak.
 
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Old Jun 8, 2012 | 06:40 PM
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Originally Posted by lakegeorgia
I have an 85 Ironhead.

Engine starts and idles like a champ. Once it is given throttle it bogs down, misfires and runs like hell. Started a month ago at high RPMs and has gotten worse and worse until now where it will only idle

So far I have..
put in new plugs, cleaned entire carb and jets, checked the fuel flow from tank to petcock to filter to carb, sealed pipes at exhaust flange

Problem still persists.. ideas?
What carb are you using?
 
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