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Keep & Kill
Last Post: Crusty
Posted On: 4 Minutes Ago
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26th November 2021
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Biker
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Join Date: Dec 2020
Posts: 27 Sportster/Buell Model: Ironhead XLCH Sportster/Buell Year: 1976
Reputation: 10
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Ironhead engine problem?
Hey guys I have a 76 xlch, I was having a problem where the engine was stuttering when I would open the throttle, it wouldn’t happen all the time and some days were better than others. I first thought carb, since the carb would also spill a lot of gas on kick start(sometimes a lot other times not so much). I rebuilt the carb, noticed that the fuel bowl nozzle wasn’t spraying gas tried to clean, eventually I bought a new fuel bowl( it’s a bendix 38mm carb) and put it back together. At first it was difficult to start, but I messed around with the jet settings and eventually I got it going. It rode pretty good for about two days, today I took it out, I noticed it was backfiring and stuttering a bit. I tried to take off at a red light and it stuttered to go and turned off. I tried to turn it back on and was successful, but when I went to take off it kept stalling. Eventually It didn’t turn back on and I ended up walking about 2 miles back home. Any ideas or suggestions?
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27th November 2021
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XL FORUM TEAM MEMBER
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Join Date: Nov 2017
Posts: 678 Sportster/Buell Model: XLCH Sportster/Buell Year: 1972
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Are all your grounds good?
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27th November 2021
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Biker
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Join Date: Dec 2020
Posts: 27 Sportster/Buell Model: Ironhead XLCH Sportster/Buell Year: 1976
Reputation: 10
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Quote:
Originally Posted by Gold Member
Are all your grounds good?
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Not sure honestly. What should I look for? |
27th November 2021
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Flat Track Champion
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Join Date: Feb 2015
Posts: 665 Sportster/Buell Model: custom Sportster/Buell Year: na
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crap in your fuel system, start with your tank, lines ,filter then your carb again
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27th November 2021
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Senior Master Custom Bike Builder
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Join Date: May 2009
Location: 37° 25' 28" N by -80° 03' 42" W
Posts: 11,292 Sportster/Buell Model: XLCH Sportster/Buell Year: 1975
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Still running points? Make sure your point gap hasn’t closed up, and make sure you don’t have a broken advance spring.
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27th November 2021
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XL FORUM TEAM MEMBER
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Join Date: Jan 2011
Location: Kelso, Washington
Posts: 450 Sportster/Buell Model: XLCH Sportster/Buell Year: '68 Sportster/Buell Model #2: FXR Sportster/Buell Year #2: '89 Other Motorcycle Model: R50/5 Other Motorcycle Year: '73
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Fuel tank venting OK?
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27th November 2021
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Land Speed Record
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Join Date: Feb 2015
Location: Seattle
Posts: 750 Sportster/Buell Model: XLCH Sportster/Buell Year: 1971 Sportster/Buell Model #2: 1973 HD/Aermacchi TX125 Other Motorcycle Model: 1988 BMW K75
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Quote:
Originally Posted by doodah man
Still running points? Make sure your point gap hasn’t closed up, and make sure you don’t have a broken advance spring.
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+1
These are classic ignition system issues associated with points, condenser and advance. |
27th November 2021
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XL FORUM TEAM MEMBER
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Join Date: Jul 2008
Posts: 11,038 Sportster/Buell Model: 1200s Sportster/Buell Year: 2001 Sportster/Buell Model #2: xlch Sportster/Buell Year #2: 1974
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murphy's law states
it probably is the last thing i touched
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27th November 2021
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Biker
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Join Date: Dec 2020
Posts: 27 Sportster/Buell Model: Ironhead XLCH Sportster/Buell Year: 1976
Reputation: 10
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Quote:
Originally Posted by doodah man
Still running points? Make sure your point gap hasn’t closed up, and make sure you don’t have a broken advance spring.
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Yeah I’m running points. I’ll have to look into that, I do notice that there is also crap in the tank, so I’ll have to take care of that as well. |
27th November 2021
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Biker
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Join Date: Dec 2020
Posts: 27 Sportster/Buell Model: Ironhead XLCH Sportster/Buell Year: 1976
Reputation: 10
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Quote:
Originally Posted by Fivecats
Fuel tank venting OK?
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I believe so, fuel seems to be flowing to the carb, there’s a good amount of fuel in the in line filter |
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