gs450 running problems

[zero_signal13]

hey am pretty new to this and i have recently received a 1980(i think)gs450l from a friend. the bike was very nearly a basket case and after a bit of a rebuild it now runs, unforunately it runs like a sack of spanners, idle speed is fine but as soon as i open the throttle even a fraction it starts running rough and backfiring through the left hand carb any help would be greatly appreciated thanks

[kparkfan]

Did you dip the carbs and install new o-rings? Also check the valve adjustment. Forum member Steve has a pretty awesome spread sheet for doing the valve adjustments.

[BassCliff]

Greetings and Salutations!!

Hi Mr. zero_signal13,

Just about everything you need to get you started on your Suzuki GS journey is contained in what is affectionately known as the "mega-welcome". Here is your very own...

Please click here for your mega-welcome, chock full of tips, suggestions, links to vendors, and other information. Then feel free to visit my little BikeCliff website where I've been collecting the wisdom of this generous community. Don't forget, we like pictures! Not you, your bike!

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Thank you for your indulgence,

BassCliff

[zero_signal13]

been through the carbs and had them double checked by a friend, changed the o rings and checked valve adjustment all ok . been told by another friend that it may just be down to the airbox and if i fit a set of filters (that he provided free of charge) it may just rectify the problem, is there any truth in this

[Larry D]

been through the carbs and had them double checked by a friend, changed the o rings and checked valve adjustment all ok . been told by another friend that it may just be down to the airbox and if i fit a set of filters (that he provided free of charge) it may just rectify the problem, is there any truth in this

You've been through the carbs ? You mean you dipped and cleaned them ?

Did you adjust the valves ? How do you mean that they're ok ? Why the question mark face ??

If you install pods, re-jetting of the carbs will be required.