I have a Hybird 150 for my son. It has never idled well, and seems to have little power. I read here somewhere a while ago about the carb adjustments, and setting the valves. Someone had a post about how to adjust and to what spec. I have it in a shop right now getting worked on and they don't know to what to adjust the valves. Does anyone know or have a link to the post on how to do it? Thanks in advance.

 

My GY6 150 service manual says 0.08" or .12mm for the valves, engine is to be adjusted cold.

 

Obviously the 0.08" spec is wrong. That is over 1/16 of an inch! By the way my service manual says the same thing - it is just a *big* misprint.

0.12mm is 0.005", and that sounds a lot better. Here is an interesting link that has a step by step pictorial guide for the 150cc GY6 engine:

http://www.scooterforumonline....c1c%202ad&topic=1326.0

 

You are awesome! This is exactly what I needed! Thanks so much!

 

Thanks for catching that LynnEdwards, I hate giving bad info. I should have realized it had a missing zero, not to mention it didn't equal the 0.12mm.

 

<div class="FTQUOTE"><begin quote>Originally posted by: LynnEdwards

[snip]... Here is an interesting link that has a step by step pictorial guide for the 150cc GY6 engine:



http://www.scooterforumonline....c1c%202ad&topic=1326.0</end quote></div>

The link above used to work, but apparently it moves around so that you must access it though the main page. Go to:

http://www.scooterforumonline.com/

Then select Chinese Scooter Forum and look for Valve Adjustment "Sticky" post near the top. Even though this post is for a scooter the engine it is identical to the 150cc GY6 engines used on ATV's.