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1977 gs 550

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    1977 gs 550

    Almost back together; 6 years! Rebuilt innards but still need to assemble carbs, install, and sync. New, non-stock 4 into 2 pipes. Three questions. 1. I have one straight gas line carb coupler w/ o-rings and o-ring style Tee). Should I try my straight plastic version for the second one or only use new/used w/ o-rings style? Would a bench test with gas answer that question? Where would I obtain a new one? 2. Petcock seems to leak (capillary action?) only when I touch it (larger of the two nipples). Normal, or should I install an inline shutoff valve. between tank and carbs. I can't seem to locate a petcock rebuild kit for this particular petcock model. 3. Recommendations for carb syncing and possible jetting services in Metrowest area of Massachusetts (assuming it runs)? Thanks
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