Hipa Snap in Primer Bulbs Air Purge Pump 188-512 for Husqvarna Stihl Craftsman MTD 791-683974B Ryobi 683974B Oregon 49-088 for 2-Cycle Small Engine (10 Pack)

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3-7 business days.

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US , CA and Mexico, only US with free shipping.
While we need to charge $4.99 shipping fee for the following US areas:
1. Alaska
2. Hawaii
3. Puerto Rico

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Returns Policy

1 Year Warranty


Hipa guarantees any products will be defect-free (material and workmanship) under normal use and service for ONE YEAR. For any manufacturing quality problems, we will offer you a replacement within one year of receipt of your original purchase.

30-Day Returns Policy


We have a 30-day returns policy, which means you have 30 days after receiving your item to request a return. If you need to return a product purchased online from Hipastore.com, here is what you need to know:

Items shipped from Hipastore.com can be returned within 30 days of receipt of shipment for a full refund. (Original shipping fees are not refundable.)

To start a return, you can contact us at service@hipastore.com. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase. You can always contact us for any return questions at service@hipastore.com.

1."How To Replace a Primer Bulb on Trimmer?"

A:"Steps to Replace the Primer Bulb on a Weed Trimmer: Turn off and disconnect the spark plug for safety.
Locate and remove the cover around the primer bulb using a screwdriver.
Disconnect fuel lines if needed and remove the old primer bulb.
Insert the new primer bulb securely in place.
Reconnect the fuel lines and cover.
Reconnect the spark plug.
Test the new primer bulb by pressing it a few times to ensure proper priming."

2."why primer bulb not working on weed trimmer?"

A:"2.1. Clogged Fuel Line or Carburetor:
Problem: Dirt or debris can clog the fuel line or carburetor, preventing fuel from flowing to the primer bulb.
Solution: Inspect the fuel lines and carburetor for clogs. Clean or replace them if necessary.
2.2. Damaged Primer Bulb:
Problem: Over time, the primer bulb can crack or become worn, preventing it from working properly.
Solution: Replace the primer bulb with a new one if it’s cracked or damaged.
2.3. Air Leaks:
Problem: Air leaks in the fuel system, such as loose connections on the fuel lines or around the carburetor, can prevent proper priming.
Solution: Check for any loose or damaged fuel line connections and ensure everything is sealed tightly.
2.4. Fuel System Issues:
Problem: Low-quality or old fuel can cause issues with fuel flow to the primer bulb.
Solution: Drain the old fuel, clean the system, and refill with fresh, clean fuel.
2.5. Faulty Check Valve:
Problem: Some primer bulbs have a check valve inside to prevent fuel from flowing backward. If this valve is faulty, the bulb may not work.
Solution: Inspect and replace the check valve if necessary.
2.6. Blocked Vent in Fuel Tank Cap:
Problem: If the fuel tank vent is blocked, it can cause a vacuum that prevents fuel from flowing to the primer bulb.
Solution: Check the fuel tank cap for any blockages and ensure it's venting properly.
2.7. Weak or Stale Fuel:
Using old or improper fuel can cause poor performance."

3."which fuel line goes to the primer bulb on weed trimmer?"

A:"On most weed trimmers, there are as follows:
The shorter fuel line goes to the fuel tank (often the intake line).
The longer fuel line goes to the carburetor (outlet line).
When you press the primer bulb, it draws fuel from the tank and pushes it to the carburetor, making it easier to start the engine.

Make sure to check your trimmer's manual for the exact configuration, as fuel line setups may vary by model."

4."why a primer bulb not filling with fuel ?"

A:"Clogged Fuel Lines: Blockages in the fuel lines can prevent fuel from reaching the primer bulb.
Faulty Fuel Pump: If the fuel pump is malfunctioning, it won't properly draw fuel into the primer bulb.
Air Leaks: Cracks or leaks in the fuel lines or primer bulb itself can cause air to enter, preventing proper fuel flow.
Empty Fuel Tank: Ensure the fuel tank has enough fuel to be drawn into the system.
Dirty Carburetor: A clogged or dirty carburetor can restrict fuel flow to the primer bulb.
Inspect these components to resolve the issue."