63cc tao tao 2011 a buddies of mine  By  burnrubber (Read 1,252 times)

Hard start suggests possible valve adjustment but I would do a proper idle adjustment first.

This is taken from a thread from scootdawg. I do not take credit for it.

ADJUSTING YOUR FUEL RATIO SCREW:

FOLLOW THIS PROCEDURE, take your time DO NOT Be turning the SCREW fast and wait in between turns otherwise you will be off.

Warm Up the SCOOT for at least 5 minutes.

YOU WANT THE HIGHEST IDLE OUT OF THE FUEL RATIO SCREW YOU CAN GET.

ADJUST YOUR FUEL RATIO:

1. Turn the Fuel Ratio Screw Counter Clockwise 1/4 and wait 10-15 seconds to allow the engine to catch up with the new setting.

** IF ON THE FIRST TURN IT DOES NOTHING OR IDLE GOES DOWN- GO to 2.*** Otherwise GO to a. below.

a. If the IDLE GOES up repeat 1.
b. If the IDLE does not go up or it does nothing turn the Fuel Ratio Screw 1/8 Clockwise that should be the highest IDLE you can get out of the Fuel Ratio Screw-- GO to FINISH UP.

2. Turn the Screw Back 1/4 and GO to 3..

3. Turn the Fuel Ratio Screw Clockwise 1/4 and wait 10-15 seconds to allow the engine to catch up with the new setting.

** IF ON THE FIRST TURN IT DOES NOTHING YOUR PILOT JET AND OR PASSAGES ARE CLOGGED*** GO to CLEAN CARB*** Otherwise GO to a. below.

a. If the IDLE GOES up repeat 3.
b. If the IDLE does not go up or it does nothing turn the Fuel Ratio Screw 1/8 Counter Clockwise that should be the highest IDLE you can get out of the Fuel Ratio Screw-- GO to FINISH UP.

FINISH UP:
SET IDLE USING IDLE SPEED SCREW:
USING the IDLE SPEED SCREW set the Idle to 1500-1800 where it IDLES the smoothest AND the REAR WHEEL IS NOT Spinning-

TEST YOUR ADJUSTMENT:
Now while on the Center Stand GIVE THE THROTTLE a GOOD QUICK TWIST and Let go,
It should REV UP with with a nice VROOOOOOOOOM with no Bogging or Hesitation and Come back down to where you set your Idle.

When I first got my scooter I tried adjusting the valves to fix my hard start issues. The scooter ran better, but was still difficult to start. Then only after properly jetting (or improperly jetting if you ask some, 38 pilot jet LOL), and adjusting my idle I still couldn't get the thing to start on the first try, it was very difficult to start. It was only after I popped off the A/F screw cap on the carb (I use a stock carb that came with a small cap blocking this feature) and got access to the a/f screw that I was able to adjust my a/f ratio and finally get my scooter to start on the first try, every time.

I do hope you followed this very guide that I used.

Valves closed tight, re adjusted intake to 00.4,exaust 00.5 severe rattle, yes top dead center,any answers?

Reset valves to speak rattles real bad now ,was so bad couldn't get a feeler gauge in Starts better though.

Are you setting the valves while its running?