You must replace it . Remove the 2 screewes that hold it to the distributor base and it will then slide out and the 90 degree rod will drop out of the bass plate hole as you are moving it. Then put the new 1 on and hook the vacuum hose to it.
Replace it.
If your pressure vacuum breaker is leaking, it may be due to a damaged seal or valve. To fix it, you can try tightening any loose connections, replacing the seal or valve, or contacting a professional plumber for assistance.
You need to get the carb vent tube and install it. Just do a web search for samurai carb vent tube fix. It's right from Suzuki. Also take off the distributor cap and use a vacuum tester (squeeze kind) on the vacuum line going to the distributor. Look inside the bottom of the distributor as you work the tester and make sure the vacuum advance is moving and hasn't gotten stuck from sitting. While your at it this is a good time to remove the EGR and clean the intake tube behind it. After you restart use small (very) squirts of starting fluid around the vacuum lines. Listen for the motor to speed up temporarily. Fix all leaking vacuum lines! Very important for that carb to work well.
You can replace it. Or you get a plastic tank fix kit in AutoZone or Advance Auto Parts.
If a fitting is leaking and the system is evacuated to a deep vacuum, the vacuum pump will struggle to reach and maintain the desired vacuum level, and the system will not hold the vacuum pressure. This can lead to moisture and air infiltration into the system, which can cause performance issues and potentially damage system components. It is important to fix the leak before evacuating the system to ensure proper operation.
The fix is replacing the leaking part.
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It could be leaking from a number of places. Some could be a simple fix and others not so simple. Need more info as to where it is leaking.
The only fix for a leaking heater core is to replace it.
You replace it.