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Showing results for tags 'lugging'.
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Hi, my friend with XVZ13 Venture has following problem: his motorcycle is lugging at acceleration from 2000 - 2500RPM to full throttle values from dynojet (gauged at 37.500 mil, now drived 38.000 mil): - 95 nm - 77 HP Others data: - compression: 13 - 14 atm - new carburettor membranes (main and acceleration) - new plugs - new filters (fuel, air) - underpressure OK - exhaust gas oxygen sensor 1,100 +- - CO2 1,2 Any ideas are welcome. Best regards, Jarda Horak
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OK, I have done everything I can think of on this bike and it still runs like my old 59 Harley PanHead. When you roll back on the throttle it runs like you are in 5th gear at 45 MPH. I am doing 70 when I do this and it vibrates and feels like you are lugging the moter. I have reset the fuel/air mixture, synced the carbs, changed the plugs and air filters. Checked all vacum lines and the fuel tank vent tube. I am at a loss on why this bike runs like an old v twin Harley. It is not smooth when you throttle up and no I am not lugging it. If I am then it is a piss poor design that you have to be doing 75/80 when you shift to 5th and it still does it. Today I had a 25/30 mph head wind and it vibrated so bad when attempting to pick up speed at 65 mph that the handlebars were shaking. I even had it in the Yamaha shop and the rechecked the sync and said it was dead on and they said they couldn't find anything wrong with the bike. What do they run like if the valves are off? Is there any timing that can be done? Any ideas? Thanks Rick
