Question about 2000 Buell Blast

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My carburetor isn't sucking any fuel from the tank, could this be because of a bad rocker gasket not letting it get any compression?

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No, you have a fuel problem. Either your carb is stopped up or your tank, line, filter are stopped up. Take the fuel line off the carb, (with fuel shut off) then place the hose in to a container and turn on the fuel, if no fuel is coming out, you have a tank / fuel shut off or filter stopped up. If you have fuel flowing then you most likely have a carb stopped up. Have it cleaned out (both jets and floats) one of these will fix you issues, let me know how this turns out, Thanks!

Posted on Mar 27, 2014

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2 fuel lines broke (1 from tank 1 from primer bulb). Line from back of tank to back of carb still there. Which lines go where?

Do not mix them up!! Doing so will bring debris into carburetor. Assuming the line from back of tank to carburetor is the fuel feed line then you should also plan to replace it if the other lines have failed..

The primer bulb sucks (pulls) the air fuel through the carburetor thus venting out any air. The process draws the fuel through the in tank filter through the impulse fuel pump. The fuel connects via an internal carburetor passage from the pump to the needle valve and during the prime passes the needle valve into the pressure diaphragm chamber. From there the fuel is drawn(sucked) into the inlet side of the purge/prime valve and returns the air fuel into the tank.

The center hose on the primer is the return into the fuel tank. The hose from the center of the primer bulb goes directly to the fuel tank and is the return. The outer diameter hose connection to the primer is the connection made to the carburetor. By closing off the end of the hose you can test with your finger the function of each hose. You do not want to pass fuel into the carburetor by reversing the primer hoses.


Dec 06, 2015 | Garden

1 Answer

Having a hard time starting my ts400 concrete saw

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tank ariation good ? fuel hose not porous , carburetor get no fuel by a sludged tankfilter or fuel tap a bad airfilter clogged nozzle and last possibility the gaskets and crankshaft seals are leaking ?
Look also if you remove the muffler to the
the state of the piston if there are grooves then you no that it will not function and the L+H adjustments in combination of the used fuel are bad or your airfilter or gaskets are not good

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Is a carburetor on a honda vtx1300c supposed to suck air or blow out?

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Have had generator in storage, Makita G1300R. What do I need to do repair wise to get it to start after about ten years in storage??

Remove air filter assembly. Disconnect fuel line from carburetor and drain old fuel into suitable container to discard. Fuel Shut Off in the On position. If fuel has gelled up in the tank or lines, add small amount fresh fuel in fuel tank, swish around several times and flush until clean.
Loosen and remove Carb Mounting nuts, throttle linkage and spring (note the position). Carefully remove Carburetor and very carefully remove gaskets (do not discard until completion of final reassembly)
Disassemble Carburetor and thoroughly clean with appropriate cleaner and immediately following with compressed air. If thick gelled old fuel is present, soak disassembled carb in cleaner overnight before using compressed air is highly recommended.Reassemble carburetor, replace gaskets and install Carburetor (Reverse dis assembly) Inspect and replace air filter upon reassembly.
Inspect spark plug and replace (do not over tighten).
Add fresh fuel and perform start procedure. Initial start might take a few pulls but should start right up.

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1 Answer

Stihl chainsaw problems

Your dealer is right. Gas is not a carbs best friend. every time you fuel dirt gets in the fuel tank from the air. This eventually blocks air and fuel passages and check valves inside the carb. That is the reason. Carbs wear out like anything else. Check the price of a carb compared to a kit. Some Stihl carbs are reasonable.

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1 Answer

My problem seems to be no fuel being sucked into the carburetor. I have flow from the tank through the line, but it doesn't seem to flow through the carburetor. I can put fuel directly into the

if you left fuel in it from last year it plugged up the carb drop the bowl and clean it out if really bad you might need to remove the carb and clean it out completely

Mar 30, 2012 | Garden

3 Answers

It was running after a carb re-build. now my bulb isn't pulling gas when i pump it

The bulb and/or fuel lines could have a small hole in them, losing vacuum, introducing air into the fuel system and causing problem. First off, check inside the fuel tank and make sure the fuel filter is attatched to fuel line. This is a common place for the line to break and if it does, it floats, introducing LOTS of air and a malfunctioning purge/primer bulb. When you depress the bulb, the vacuum created actually allows gas to Flow to the carburetor as it is pushing any air/old gas back to the fuel tank. So, in summary. Carefully check the condition of ALL of the fuel lines ,fuel filter and the bulb itself. If they are dry, non-flexible, or cracked, they need to be replaced.

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1 Answer

O8 rocker c has run fine until yesterday. After about 150 miles of riding it began cutting out and backfiring then died. I can start it for a few seconds while on the throtle then it backfired and dies....

Hi Dorkita24, you probaly got some moisture in a wiring connector, try removing your seat and use some compressed air to blow dry all the connections you can get at, otherwise the usual suspects are:
1. Spark plugs in bad condition or partially fouled.
2. Spark plug cables in bad condition or leaking.
3. Spark plug gap to close or to wide.
4. Faulty ignition coil, module and or sensor.
5. Battery nearly discharged.
6. Damaged wire or loose connections at battery terminals,
ignition coil, or plug between ignition sensor and module.
7. Intermittent short circuit due to damaged wire insulation.
8. Water or dirt in fuel system, carburetor or filter.
9. Fuel tank vent system plugged or carburetor vent line closed off.
10. Carburetor controls misadjusted.
11. Damaged carburetor.
12. Loose or dirty ignition module connector at crankcase.
13. Faulty MAP, CKP, and or CMP sensors.
14. Incorrect valve timing.
15. Weak or broken valve springs.
16. Damage intake or exhaust vale.
For a prime suspect please visit website below and good luck:
Harley Diagnostic Codes 04 to Present

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2 Answers

I have a GTS 6.5HP Toro lawn mower it start good but will not keep runing what can I do

Does the fuel line have a filter? It sounds like the float in the carburetor is running out of gas. Sludge builds up and the deposits on the needle seat will not let the flow of fuel to be metered correctly.Drop the bowl down off the carb and check for junk in the bowl. Check to se if the float is set at the right setting. Little pieces or rust in the bowl will be sucked up into a jet and plug it up and stop it from running. Do not leave gas in your mower over extended periods of time, this is the cause of sludge and rust build up in gas drawing moisture.

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2 Answers

How to change fuel pump ?

  1. Disconnect the negative battery cable.
  2. Disconnect fuel tank hose at the fuel pump, and plug the hose with a bolt or wooden dowel to keep any fuel from flowing out wires. Check the hose and if it is frayed or cracked, replace it with new fuel line hose.
  3. Disconnect the outlet line to the carburetor. Use a wrench on the fuel pump fitting and another on the line nut.
  4. Remove the two attaching bolts and remove the old fuel pump. Clean off any old gasket material from the mounting surface of the engine.
  1. Apply a coat of gasket sealer on both sides of the new gasket. Put the attaching bolts through the new pump and slip the gasket over the bolts.
  2. Install the new pump on the engine. Make sure that the rocker arm in the pump is against the eccentric inside the engine, or that the push rod is correctly installed in both the engine and the fuel pump. If the push rod slides out, you can pack it with some heavy grease to hold it in place while you install the pump.
  3. Attach the fuel outlet line that runs to the carburetor. If it's difficult to connect, remove the other end of the line from the carburetor. Connect the line to the fuel pump, and then reattach the other end to the carburetor. Use a wrench to hold the fuel pump fitting and tighten the line nut with another wrench.
  4. Attach the fuel inlet hose from the gas tank, and the vapor return hose (if the vehicle is equipped with one). Tighten all clamps.
  5. Reconnect the battery ground cable, start the vehicle and check for leaks.
Hope that works

Nov 19, 2008 | 1991 Eagle Talon

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