At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Re: How do I adj carb on ryobi bp 42 that is too lean
There are two small screws on the carb. One is for the high end and one for the low end. When it is running you can tweek these slightly to get the result you want. Change the spark plug as well.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
That is the mixture screw. Turn clockwise to get a leaner mixture, counter-clockwise for richer. For initial setting, try with the mixture screw open 1/4 turn. Start the engine and adjust the mixture screw for good running. After it is warmed up, lean the mixture until the engine starts to miss and then turn the screw about 1/8 turn CCW
There are two screws on the carb (small ones) one adjusts the low and the other adjusts the high. very slight turns will get you what you need. Always remember where the screw started so you can get back if needed.
some carbs have a small screw located in the throttle shaft at the lever
there may be a small plastic block that has to be removed first and then a small screw driver to adjust the screw
probably better to get a repair kit or new carby as that setting very seldom changes
air flow vane adj to the return spring.
gas flow adj on front bottom screws ,not too lean. close it down . back off 3 turns. an try.
then the vacuum advance big knobby thing with black plastic an one screw on side of the carb with a vac hose to it. when u gun it .adjusts points firing.
Its a lean condition, not getting enough fuel. Check fuel filter and fuel lines. be sure you have fresh fuel. and the carb needs to be adjusted or rebuilt.
all carbs are adjustable,float levels can be changed,jets if you can buy new can be drilled out using a hobbiest drill set(approx $14)you can also shim the needle...make sure your carb is clean and you don`t have any air leaks.
if they are not capped with limiter caps
you can try this turn both adj. cw with a small screwdriver until
they bottom out do not force once they stop turning
now back them out 1and1/4 to 1and1/2 ccw
that is the approx. initial setting.
×