Cleaning the carbs 1: Difference between revisions

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*It is quite often difficult to get the Phillips screws out of the carburetor float bowl. Those and a lot of other screws on Japanese products...are specifically Japanese Industrial Standard JIS 4633B-3/1991 and DIN/ISO standard 5260. Note the dot in one corner of the cross formed by the slots... The Japanese-style Phillips screwdrivers are available from [http://www.amessupply.com Ames Supply Company] and [http://www.katun.com Katun]... Using the normal American/European #1 or #2 Phillips screwdriver in a screw head with the dot on it will most likely strip the head on the first try.

A couple other options for float bowl screw removal: Take a Dremel and cut slots in the screws, then use a flathead screwdriver to remove the ridiculously soft metal screws. You may have to cut a piece off of the idle adjustment bracket to get at one of the screws.

A couple other options for float bowl screw removal:

~~[[Image:e7a7a786~~.~~jpg|150px]] [[Image:e7a7a782~~.~~jpg|150px]]~~

*Take a Dremel and cut slots in the screws, then use a flathead screwdriver to remove the ridiculously soft metal screws. You may have to cut a piece off of the idle adjustment bracket to get at one of the screws.

~~Another, most likely easier, suggestion is to (carefully) put the carbs in a bench vice and remove the screws with an impact driver, BEFORE you strip them~~. ~~Whatever you do, plan on replacing the float bowl screws with allen-headed ones~~.

:[[Image:e7a7a786.jpg|150px]] [[Image:e7a7a782.jpg|150px]]

Another trick: As long as you're going to replace them anyway, use vice grips. By gripping the screw top down and holding it hand tight (not clamping) then twisting, it should make a popping sound as it breaks free. As soon as it pops, stop twisting, get a phillips, and turn the screws out.

*Another, most likely easier, suggestion is to (carefully) put the carbs in a bench vice and remove the screws with an impact driver, BEFORE you strip them. Whatever you do, plan on replacing the float bowl screws with allen-headed ones.

*Another trick: As long as you're going to replace them anyway, use vice grips. By gripping the screw top down and holding it hand tight (not clamping) then twisting, it should make a popping sound as it breaks free. As soon as it pops, stop twisting, get a phillips, and turn the screws out.

*One more: Drywall driver bits are great for JIS screw heads. Available at your local Home Depot or Ace hardware. Whoever designed the drywall bit gave us a perfect JIS screwdriver substitute. They come in various sizes and they're cheap.

The following is just a picture of the float. It's what controls the level of fuel in the carbs....

@@ Line 46: / Line 46: @@
 *It is quite often difficult to get the Phillips screws out of the carburetor float bowl. Those and a lot of other screws on Japanese products...are specifically Japanese Industrial Standard JIS 4633B-3/1991 and DIN/ISO standard 5260. Note the dot in one corner of the cross formed by the slots... The Japanese-style Phillips screwdrivers are available from [http://www.amessupply.com Ames Supply Company] and [http://www.katun.com Katun]... Using the normal American/European #1 or #2 Phillips screwdriver in a screw head with the dot on it will most likely strip the head on the first try.
-A couple other options for float bowl screw removal: Take a Dremel and cut slots in the screws, then use a flathead screwdriver to remove the ridiculously soft metal screws. You may have to cut a piece off of the idle adjustment bracket to get at one of the screws.
+A couple other options for float bowl screw removal:
-[[Image:e7a7a786.jpg|150px]]  [[Image:e7a7a782.jpg|150px]]
+*Take a Dremel and cut slots in the screws, then use a flathead screwdriver to remove the ridiculously soft metal screws. You may have to cut a piece off of the idle adjustment bracket to get at one of the screws.
-Another, most likely easier, suggestion is to (carefully) put the carbs in a bench vice and remove the screws with an impact driver, BEFORE you strip them. Whatever you do, plan on replacing the float bowl screws with allen-headed ones.
+:[[Image:e7a7a786.jpg|150px]]  [[Image:e7a7a782.jpg|150px]]
-Another trick: As long as you're going to replace them anyway, use vice grips. By gripping the screw top down and holding it hand tight (not clamping) then twisting, it should make a popping sound as it breaks free. As soon as it pops, stop twisting, get a phillips, and turn the screws out.
+*Another, most likely easier, suggestion is to (carefully) put the carbs in a bench vice and remove the screws with an impact driver, BEFORE you strip them. Whatever you do, plan on replacing the float bowl screws with allen-headed ones.
+*Another trick: As long as you're going to replace them anyway, use vice grips. By gripping the screw top down and holding it hand tight (not clamping) then twisting, it should make a popping sound as it breaks free. As soon as it pops, stop twisting, get a phillips, and turn the screws out.
+*One more: Drywall driver bits are great for JIS screw heads. Available at your local Home Depot or Ace hardware. Whoever designed the drywall bit gave us a perfect JIS screwdriver substitute. They come in various sizes and they're cheap.
 The following is just a picture of the float. It's what controls the level of fuel in the carbs....