diff --git a/config/default.json b/config/default.json
index b4f436ec..c438a831 100644
--- a/config/default.json
+++ b/config/default.json
@@ -1,6 +1,6 @@
 {
   "boot": {
-    "fundRelayers": true
+    "fundRelayers": false
   },
   "health": {
     "checkRelayers": false
@@ -9,17 +9,9 @@
     "validate": true
   },
   "supportedNetworks": [
-    1, 137, 97, 56, 1101, 42161, 42170, 10, 43113, 43114, 8453, 59144, 5000,
-    204, 5611, 88888, 592, 88882, 81, 1115, 1116, 169, 1715, 9980, 421614,
-    11155111, 84532, 168587773, 81457, 534351, 534352, 56400, 7000, 11155420,
-    80002, 27827, 4653, 8101902, 666666666, 2442, 7001, 5003, 100, 10200, 195,
-    196, 2810, 997, 3799, 167009, 80084, 5845, 167000, 1328, 1329, 995, 28882,
-    288, 920637907288165, 1740, 1750, 4202, 1135, 2818, 146, 57054, 10143
-  ],
-  "supportedNetworksV07": [
-    1, 11155420, 84532, 8453, 10, 56, 42161, 137, 100, 80084, 168587773, 81457,
-    11155111, 146, 57054, 10143, 80002, 421614, 97, 10200
+    43113, 43114, 27827, 56400, 88888, 88882
   ],
+  "supportedNetworksV07": [],
   "EIP1559SupportedNetworks": [
     1, 137, 42161, 10, 43114, 43113, 8453, 59144, 204, 5611, 421614, 11155111,
     84532, 168587773, 81457, 42170, 169, 56400, 11155420, 80002, 27827, 4653,
diff --git a/src/common/service-manager/index.ts b/src/common/service-manager/index.ts
index 27ef5f14..095521ea 100644
--- a/src/common/service-manager/index.ts
+++ b/src/common/service-manager/index.ts
@@ -474,8 +474,11 @@ async function setupRelayerManagers(
     );
 
     /*
-      UNSAFE: Disable funding relayers for testing purposes or local devenv.
-      This is enabled by default but you can set it to false if you want to run smoke tests for example
+      UNSAFE: Disable funding relayers for testing, local devenv, or service shutdown drains.
+      When false, this skips the initial boot funding here AND disables runtime auto-funding
+      (the flag is also checked inside EVMRelayerManager.fundRelayers, which is the chokepoint
+      for postTransactionMined low-balance top-ups, on-demand scaling, and the FUND_BUNDLER
+      retry path from BundlerConsumer).
     */
     if (nodeconfig.get<boolean>("boot.fundRelayers")) {
       await relayerMangerInstance.fundRelayers(addressList);
diff --git a/src/relayer/relayer-manager/EVMRelayerManager.ts b/src/relayer/relayer-manager/EVMRelayerManager.ts
index f8f6ece1..f7b023bb 100644
--- a/src/relayer/relayer-manager/EVMRelayerManager.ts
+++ b/src/relayer/relayer-manager/EVMRelayerManager.ts
@@ -1,5 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
 import { Mutex } from "async-mutex";
+import nodeconfig from "config";
 import {
   privateToPublic,
   publicToAddress,
@@ -449,6 +450,12 @@ export class EVMRelayerManager
    * @param addressList List of relayers to fund
    */
   async fundRelayers(addressList: `0x${string}`[]): Promise<any> {
+    if (!nodeconfig.get<boolean>("boot.fundRelayers")) {
+      log.warn(
+        `Skipping fundRelayers on chainId: ${this.chainId} for addresses ${addressList}: boot.fundRelayers is disabled`,
+      );
+      return;
+    }
     log.info(
       `Starting to fund relayers on chainId: ${this.chainId} with addresses: ${addressList}`,
     );