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  1. P

    Soft Pop/Backfire on Throttle Open

    Good to hear! I always use some seafoam after filling up. Tank is in good shape so good call. Good idea to drain. Probably what brought on the issues in the first place!
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    Soft Pop/Backfire on Throttle Open

    Hello All! I believe that hopefully this is the final update! After taking the advice of @brettp and checking the spark on all cylinders to find that all plugs were sparking strongly, I figured that just left the carb. After thinking about it for a while and watching a few videos talking about...
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    Soft Pop/Backfire on Throttle Open

    To anyone who may see this, UPDATE (with pics): I had a few minutes to stop and look at things and noticed several seemingly obvious observations that i had not noted before. I started the bike to let idle and went about checking for exhaust leaks on cylinder 3 and 4 using a small piece of...
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    Soft Pop/Backfire on Throttle Open

    Greetings from the other side! Thank you brother. Appreciate the insights!
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    Soft Pop/Backfire on Throttle Open

    Good point on the condensation drain. It definitely appears to be intentional. Bo82 made the same point so thank you both for deterring my ill thought solution. Good idea to use paper or feathrer to check for the exhaust leaks. I had tried with my hand, hence how i discovered the drain hole...
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    Soft Pop/Backfire on Throttle Open

    I have done precisely that already! Some fresh premium with a dash of seafoam. About a tank through the bike at this point. I frequently run small amounts of seafoam through my dirtbike and find that it helps delay the buildup of gunk. Also, thanks for the warning about the condensation drains...
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    Soft Pop/Backfire on Throttle Open

    Thank you everyone for the responses! I really appreciate the insights. Looking forward to getting back to the bike when i have some time this week or weekend. Hopefully I will have an update sometime soon. This bike is close to being a dime Im really hoping to sort out the fart!
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    Soft Pop/Backfire on Throttle Open

    Hello All, I'm new to the forum, but extremely happy to see it alive and active. I recently acquired an 81 750F from a "collector". Very clean and well maintained bike. 11,xxx miles. Bike is nearly what i would consider to be 8 or 9 out of 10. However, the bike has a somewhat consistent...
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