Aftermarket Carb Help

[Scott Palmer]

Hey everyone, haven't been on here in a while . I finally decided to do a top end on my 2001 Blaster and noticed that the carb is not OEM. It looks like a Keihin PWK 28mm with a 145 main and 42 pilot. It ran good, but the compression was getting low and sometimes it would stall and take a really long time to start again so I finally decided to do it. Its an all around stock bike, stock bore and exhaust, but it has some holes drilled in the airbox. I was just wondering what jets I should run on it, or if I should just let it be. Thanks for the help in advance.

 

[Larry's Shee]

First off list all your mods.

 

[Scott Palmer]

First off list all your mods.

No mods, pretty much all stock. Only thing that I mentioned is the holes in the airbox.

 

[Larry's Shee]

Do a compression test and leak down test.
If compression is low get your OEM cylinder bored. DO NOT buy a Chi-NA cylinder or piston

Learn how to do a plug chop. Most likely the main jet is to big

 

[Scott Palmer]

Do a compression test and leak down test.
If compression is low get your OEM cylinder bored. DO NOT buy a Chi-NA cylinder or piston

Learn how to do a plug chop. Most likely the main jet is to big

Great, thanks for the help!