Mikuni VM 26SS

[Baz1954]

This a follow up from problems I was having running my GS1000. Discovering it was contaminated fuel I stripped the carbs again going further this time. 

So I find I have 115 main jets (up from original 95). Because memory fades I couldn't remember doing changes when I fitted a 4 into 1 exhaust and the K & N's so thinking I dropped it into a shop for tuning.

what I found;

Cyl *1 - Fuel Mix 3/16 of turn out. Air screw 14/16 turn out.

Cyl *2        "         8/16          "              "          12/16       "

Cyl *3        "         10/16        "               "          14/16      "

Cyl*4         "         3/16         "               "           13/16      "

 

So conundrum, I have original exhausts with muffler but not packed and still have K & N's. Waiting for a set of vacuum gauges and will check timing first.

Do I set the screws to these positions again? I used 1/16 as lowest denominator but it's the disparity for 1 & 2 and 3 & 4 fuel mixing that's got me baffled. Before I abandoned the bike to a lonely garden shed on the far reaches of my property it had run just fine.