Runs kinda rough on the garden hose in gear at idle. Will accelerate to WOT and act ok, but when you bring it back to idle, it just dies. In the water it wont idle at all, had to rev it up to get it in gear and it will run wide open, but as you slow down close to and idle, she dies and will not restart for a few hrs.
drained fuel, replaced 10 mic filter
opened and cleaned vst (was very clean inside), replaced filter, fuel lines, and diaphragm pumps, check psi on vst all good 50 psi.
tried running on 5gal shop fuel tank same problem
YDS not showing anything unusual
cleaned air intake found some dirt and gunk stuck in there
replaced battery just to be sure it was not a voltage issue
compression is 120 psi on all cyl
checked spark with an in line spark tester, and all cyl are firing
was wondering if its a coil issue, but wouldn't that make it act up in higher rpms rather than idle range???
vz300 tlrc 2004 model on a Skeeter bass boat.
any help would be greatly appreciated.
We dont have a Yamaha dealer that really knows them around here, just part changers
drained fuel, replaced 10 mic filter
opened and cleaned vst (was very clean inside), replaced filter, fuel lines, and diaphragm pumps, check psi on vst all good 50 psi.
tried running on 5gal shop fuel tank same problem
YDS not showing anything unusual
cleaned air intake found some dirt and gunk stuck in there
replaced battery just to be sure it was not a voltage issue
compression is 120 psi on all cyl
checked spark with an in line spark tester, and all cyl are firing
was wondering if its a coil issue, but wouldn't that make it act up in higher rpms rather than idle range???
vz300 tlrc 2004 model on a Skeeter bass boat.
any help would be greatly appreciated.
We dont have a Yamaha dealer that really knows them around here, just part changers
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