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Carb float bowl screws

6773 Views 5 Replies 6 Participants Last post by  elime
As Qwerty described them, "those %^&^$ float bowl screws", are a pain to remove, and the phillips heads are easily stripped.



The stock screws are not standard Phillips screws, they are Japanese Industrial Standard (JIS) Phillips screws, and are easily stripped with a standard Phillips screw driver

(thanks to Peruano for this info).



If you are going to work on your carb, it would be a good idea to replace them with socket head screws.



On 2001 and newer TW carbs, the stock screws are M4 x 14mm, which I couldn't find at Home Depot, but they had M4 x 16mm. I added 4mm lock washers to take up the extra couple of threads.







At the same time I replaced the two screws on the top of the carb, M5 x 15mm, although I have not had any problem with them stripping.







For about $3.00 US, you can save yourself a lot of grief when working on your carb.



jb
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The manual says you can remove the float bowl without removing the carb first. I couldn't do it using the Phillip head screws so I changed to the allen head screws. Now I can remove it but it is toss up whether or not to remove the carb first is the easier way. Anyway, this is what I did.



Take a 3mm wrench with the ball on the end and break off the elbow. Better to grind it off but if you choose to break it make sure your eyes are protected. I had a piece go flying.









I found a small grinding wheel and epoxied it on the wrench. It gives leverage and friction. I think you could use a lot of different things but this is what I had.









Then I tried the new home altered wrench on the right side screws of the carb. These are the most difficult and I can easily remove them.











I added the little grinding wheel wrench to the tool kit I carry on the bike. Hopefully I will never have to find out how it works in the field.

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