Need Help: Float height

[georgiaboy]

I'm planning on doing a carb clean and have a couple questions i need help with...i have read procedure posted on checking float height....."when you slowly raise assembly the float pops up from the spring pressure of the needle valve" You measure float height at this point..While doing mine it looks like the needle

valve is still closed. Does the needle valve suppose to open or just the pressure of the spring load plunger that makes the float pop up. Also what part of the float do you measure from...I know the wide side but do you measure from center, low side or high side...float sits at an angle to the float bowl surface..

[V7Goose]

The needle valve will remain closed, you just want to make sure the spring loaded plunger pops up and that the float tang is contacting the tip of the plunger without depressing it at all. You measure from the surface of the carb where the float bowl seats to the highest point on the float, making sure to hold the measurement tool exactly perpendicular to the flat surface of the carb. If you lean the tool in/out or sideways at all, the measurement will not be correct.

 

And since you now have the carbs opened up, this is the time to properly clean those pilot jets. Take them out (but if you also remove the main jets for cleaning, do NOT mix them up - there are three different sized main jets in those four carbs!!!), spray carb cleaner in the jets and blow them out with compressed air - soaking the jets in a little of the carb cleaner Will help. Repeat this process until they all clearly show the same round point of light when held up to a bright light or window. Even though the pilot hole is very very small, the human eye can easily distinguish if the little point of light is actually round when compared to another good jet.

 

Do not, NOT, under any circumstance, poke something into those jets to clean them! Only a piece of straw or the nylon bristle from a brush would be safe, but you won't find one the exact size you need, so no real value in even trying it. Basically, anything that is capable of actually cleaning out a bit of dried crap from your pilot jet WILL destroy the jet at the same time.

Edited June 8, 2016 by V7Goose
correct stupid mistake

[georgiaboy]

V7Goose....Thanks for excellent advice...I think i can set the floats correctly now....Just one more Question...Are the pilot jets different sizes or did you mean the main jets were different......All of my pilot jets are #15

[V7Goose]

Oops! Good catch - I did make a mistake there - all pilot jets same size, but main jets different. I am very sorry for any confusion. I will correct the first post.

Goose