Hey crew!
vlx 600 single carb, boot burners, velocity stacks and performance kit. Brand new plugs.
first test ride today. And first of all holy mother the sound..😱😱😂
anyways! Must have full choke to start it. Once warm i am able to go off the choke but had to up the idle knob abit as it sounded like it was just about to die.
from performance kit i went "somewhere in the middle" with 50 + 148 jets.
it was a short ride as it was getting late and the extreme sound of the Boot burners kinda made me feel bad 😂
but first observations, some black smoke, very heavy smell, wife loco from tainted asphalt in the driveway but feels "ok" trough the throttle span all the way to Full throttle, idle maybe a bit erratic.
next step probably pull the carb and drop jets from 50/148 to 48/145?
thanks in advance 🤘🏻
Yes you will need to turn your idle up. very normal. @Karl Valderhaug
Got a couple questions for ya -
Did you lift the needle with the included shims? put two shims under the needle.
is your air fuel mix screw turned out to 2-3.5 turns out?
Did you replace the exhaust gaskets? non negotiable. they MUST be replaced if you swap out your exhaust.
Did you replace the intake boots? if not you NEED to replace these. non negotiable.
the VT600 is a cold natured bike anyways and all the 600's ive owned like to be started with choke if the temps are anywhere near 60degrees.
If you adjust your jetting, make ONE change at a time. ONLY change pilots, then test ride.
to determine what metering circuit to change heres a diagram to tell you which throttle stage to tune -
And heres some info to help you determien whats lean or rich:
Lean Mixture Symptoms -
1 - It is difficult to apply the throttle quickly or the engine picks up speed when the throttle is rolled off.
2 - The engine knocks or Pings or overheats.
3 - The engine surges or hunts for a stable RPM while cruising at part throttle.
4 - Engine acceleration is flat or slow to pick up.
5 - When the pilot circuit is too lean, there will be popping or spitting in the carburetor as the throttle is opened. Sometimes there will be popping or after fire in the exhaust on deceleration after the throttle has been closed.
6 - Engine performance improves in warmer weather, or runs poorly in cold weather.
7- Engine performance worsens when intake is removed.
8 - Baked white and flaky spark plugs.
Rich Mixture Symptoms -
1 - Engine acceleration is flat, uneven, not crisp.
2 - The throttle needs to be opened continuously to maintain consistent acceleration.
3 - The engine performs poorly when the weather gets warmer, or the engine works better in cold conditions.
4 - Black smoke coming out of the exhaust.
5 - Poor fuel economy.
6 - Engine performance improves when the intake is removed.
7 - When the pilot circuit is rich, the engine will idle roughly, or not return to idle without blipping the throttle, the exhaust can smell of excessive fuel and burn the eyes.
8 - Black sooty or fouled spark plugs, black and sooty exhaust tail pipes.
