plastic-idol
Well-known member
I've got a freshly rebuilt 1100 i'm going to bolt on tomorrow. What steps do I need to follow to get it ajusted and tuned right?
ajusting a new carb
- Thread starter plastic-idol
- Start date
Howdy PI:
Did you rebuild it or did you buy a rebuilt? If you rebuilt it proceed, If it is a rebuilt start by checking the main jet size, checking the float level, and making sure the needle valve is aligned with the seat and seats properly. retighten everything. This is the first step in tuning a new carb. Now turn the idle screw on the existing carb in and count the turns. Set the new carb the sam way to begin with.
Have a catch can ready for gas and parts. Some pieces will be used to reattach the rebuilt carb. Be sure to use a new gas filter. Check the old gasket to manifold for leaks. Scrape all mating surfaces clean before you start to install with the new gaskets. Tighten everything is stages- not all at once.
Once it's on and running, check for leaks, both vacuum and gas. Fix those first. Also make sure the gas pedal is achieving full throttle when depressed. If not adjust the linkage. Make sure the vacuum advance hose to the distrivutor is in place and tight. Set the idle. Now turn the low speed screw in and out 1/2 turn listening for an increase in engine speed. Set it to the highest engine speed. Reset the idle screw.
Now take it for a drive. If you like it, your done. If not begin assessing and fixing. Other issues could be choke settings, vacuum advance in the distributor, ignition, jetting, filters, gas pump, fuel lines. This could take a book.
Good luck.
Adios, David
Did you rebuild it or did you buy a rebuilt? If you rebuilt it proceed, If it is a rebuilt start by checking the main jet size, checking the float level, and making sure the needle valve is aligned with the seat and seats properly. retighten everything. This is the first step in tuning a new carb. Now turn the idle screw on the existing carb in and count the turns. Set the new carb the sam way to begin with.
Have a catch can ready for gas and parts. Some pieces will be used to reattach the rebuilt carb. Be sure to use a new gas filter. Check the old gasket to manifold for leaks. Scrape all mating surfaces clean before you start to install with the new gaskets. Tighten everything is stages- not all at once.
Once it's on and running, check for leaks, both vacuum and gas. Fix those first. Also make sure the gas pedal is achieving full throttle when depressed. If not adjust the linkage. Make sure the vacuum advance hose to the distrivutor is in place and tight. Set the idle. Now turn the low speed screw in and out 1/2 turn listening for an increase in engine speed. Set it to the highest engine speed. Reset the idle screw.
Now take it for a drive. If you like it, your done. If not begin assessing and fixing. Other issues could be choke settings, vacuum advance in the distributor, ignition, jetting, filters, gas pump, fuel lines. This could take a book.
Good luck.
Adios, David
A
Anonymous
Guest
you have to open the carb up to check the jets right? if so, do you need to replace the carb gaskets when you put it back together or can the gasket be reused?
Howdy Back All:
Good question Evren. Yes, it has to be opened up and disassembled to check jet size. And gaskets can be reused so long as gas has not been in the carb yet and they are in good shape and not torn or damaged on disassembly.
We use some Chapstick on new gaskets to help them seal and to come apart easier.
Adios, David
Good question Evren. Yes, it has to be opened up and disassembled to check jet size. And gaskets can be reused so long as gas has not been in the carb yet and they are in good shape and not torn or damaged on disassembly.
We use some Chapstick on new gaskets to help them seal and to come apart easier.
Adios, David
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