5-Pack Primer Bulb For Stihl TS400 TS410 TS420 TS700 TS800 Concrete Cutoff Saws Replace 4238 350 6201

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3-7 business days.

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US , CA and Mexico, only US with free shipping.
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1. Alaska
2. Hawaii
3. Puerto Rico

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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.

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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 cut off saw?"

A:"Safety First:
Cool Engine: Ensure the chainsaw is cool before replacing the primer kit components.
Remove Cover: Release top cover clips and lift off.
Disconnect Spark Plug: Remove wire/boot from the spark plug.
Remove Recoil Assembly: Unscrew and remove recoil starter assembly.
Handle Removal: Untie the starter rope knot, then remove the handle.
Release Spring Tension: Hold pulley and slowly release spring tension. Remove Parts: Unscrew, remove starter cog, spring retainer, and pulley carefully.
Install New Spring: Align new spring in housing, secure rope in notch. Reassemble: Rotate pulley, secure parts, feed rope through housing.
Final Assembly: Tie rope to handle, check recoil function, reattach cover and spark plug wire."

2."What's the symptoms of a bad primer bulb on cut off saw?"

A:"Hard to Start: Difficulty starting the chainsaw, as the fuel may not be properly primed into the carburetor.
Fuel Leaks: Fuel leaking around the primer bulb or a cracked bulb.
No Fuel Flow: No fuel being drawn into the carburetor when you press the bulb.
Weak or No Suction: The bulb doesn’t return to its normal position or feels soft and unresponsive.
Stalling: The chainsaw may start but quickly stalls because the fuel isn’t getting to the engine properly.
If you notice any of these symptoms, it’s a good idea to inspect or replace the primer bulb."

3."Why cut off saw primer bulb not getting hard?"

A:"There could be a few potential causes: Clogged Fuel Lines: A blockage or clog in the fuel lines can prevent fuel from reaching the primer bulb, which may cause it to stay soft. Check the lines for obstructions.
Damaged or Cracked Primer Bulb: If the bulb is cracked, damaged, or worn out, it might not be able to hold pressure, leaving it soft when pressed.
Faulty Check Valve: The primer bulb has a check valve that helps create suction. If the valve is damaged or stuck, fuel won’t be pulled through properly, and the bulb may not harden.
Air Leaks: If there are air leaks in the fuel system, such as at the carburetor or connections, the bulb won't create the necessary vacuum to pump fuel and might stay soft.
Old or Degraded Fuel: If the fuel is old or has evaporated, it may cause improper priming, making the bulb feel soft because there's not enough liquid fuel to create pressure.
In these cases, you may need to inspect the fuel lines, replace the primer bulb, or check the check valve for damage."

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."

5."which way to insert fuel primer bulb on cut off saw?"

A:"When inserting the fuel primer bulb on a chainsaw, it's important to ensure it's positioned correctly for proper operation. Here's the general process:
Orientation: The flat side of the primer bulb (the side without the small raised rim) typically faces outward, toward the outside of the chainsaw. This allows the fuel to be pumped into the carburetor effectively when you press the bulb.
Positioning: Insert the primer bulb into the housing in a way that it sits flush with the surface of the chainsaw. The bulb should fit securely in its designated space.
Sealing: Ensure that the bulb is sealed tightly in its housing, so there’s no air leakage. If it’s not sealed properly, it won’t create the necessary vacuum to prime the fuel system.
If you're unsure, refer to your chainsaw’s manual for the specific instructions for your model, as designs can vary slightly."