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Old 08-30-2022, 07:05 PM   #1
Thumper   Thumper is offline
 
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Smoothbore Carburetor

I pulled the carb and there are just TWO break-off bolts holding the float bowl in place.

I used a fine saw this time to cut a flathead slot. STILL barely got the first one off. I actually used an impact driver. Shocked at how hard to remove!
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The second one was NOT as cooperative, so I ground off the head and removed the bowl. To my surprise, the shaft of the bolt was EASILY accessible. I could have just ground off the head on BOTH of them. Once exposed, it was no match for a vice grip.

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But the reason became obvious. They are loctite sealing these in place!
HAH!!! No match for a dremel and vice grip!

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BY THE WAY... Threads are M4 -.7
I got a couple of 16mm Allen bolts to replace them.



Last edited by Thumper; 08-31-2022 at 01:26 PM.
 
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Old 08-31-2022, 06:32 AM   #2
rider1010   rider1010 is offline
 
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carb

Are you changing jets or installing new carb?


 
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Old 08-31-2022, 07:19 AM   #3
Thumper   Thumper is offline
 
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Quote:
Originally Posted by rider1010 View Post
Are you changing jets or installing new carb?
Changing jets. It is a good smoothbore carb. And no need to open the bowl if I was just replacing the carb!

I found #120 main and #40 pilot in there.


 
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Old 09-02-2022, 02:54 PM   #4
Thumper   Thumper is offline
 
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Quote:
Originally Posted by Thumper View Post
I pulled the carb and there are just TWO break-off bolts holding the float bowl in place.

EDIT- The M4-0.7 allen bolts are perfect (16mm length). There is still threadlocker in there, so they will stay put

The main and pilot jets seen in the carb are Keihin style jets.
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I just got a pack of these jets. Perfect and less than $8 on ebay
*item 334527584998, Description:
"Carburetor Main Jet 10pcs/Set Slow/Pilot Jet Kit For PZ30"
Vendor is shmoto. They arrived in TWO days.

Original 120 main, 40 pilot
installed 125 main, 42 pilot (or 45 in hot weather, low elevation)
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Last edited by Thumper; 08-06-2024 at 04:47 AM.
 
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Old 03-06-2024, 03:32 PM   #5
Weresquatch   Weresquatch is offline
 
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Quote:
Originally Posted by Thumper View Post
I just got a pack of these jets. Perfect and less than $8 on ebay
*item 334527584998, Description:
"Carburetor Main Jet 10pcs/Set Slow/Pilot Jet Kit For PZ30"
Vendor is shmoto. They arrived in TWO days.

Original 120 main, 40 pilot
installed 125 main, 42 pilot (45 was too rich, didn't need choke in cold weather!)
Attachment 27434
This was *so* helpful. I got this done last night. That was kind of a surprising amount of grinding to pop that bowl free. I only have about an hour or so a night on weekdays to work in my garage. Getting the carb *back* on has been a much bigger PITA then I thought it would be LOL. #GettingThere
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