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Old 08-12-2008, 12:08 AM
2k1yzfr1 2k1yzfr1 is offline
LawnSite Senior Member
Join Date: Dec 2003
Location: Waco Texas
Posts: 539
Dump that into your mower and try getting 89 Shell or Texaco since the "top tier" fuels have less ethanol. I had the same problem you are having with my blowers and trimmers on cheap fuels and ever since switching to Shell fuel my problems have gone away.
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Old 08-12-2008, 08:47 AM
mcambrose mcambrose is offline
LawnSite Senior Member
Join Date: Jan 2000
Location: Florence, AL
Posts: 501
Thanks. I will give it a try.
2-Walker 20 HP GHS, 1-Walker 26 hp GHS, 1-Walker 23 hp GHS, 42 and 48 GHS decks, 42 mulch deck, 42 discharge deck, 3-Honda WB, 3 Shind Trimmers, Stihl BR600 blower, Shind 260 edger, Two Shind Multi-tool with artic. clippers and chainsaw, Redmax 8000 blower, Redmax 7001 blower, Shind 803 Blower, Spyker walk spreader, sprayer for Walker mower, 3-Stihl chainsaws.
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Old 08-12-2008, 09:34 AM
echoman8 echoman8 is offline
LawnSite Senior Member
Join Date: Jul 2008
Location: west Texas
Posts: 278
Gasahol Ethanol

Just a note on the ETHANOL. During the mid 80's, there was a push on GASAHOL (GAS WITH ETHANOL) being the same or similar to today. I will call both the fuels now and the fuels then GASAHOL. On a good day GASAHOL burns hotter (with less power) and is not as good for your motor (especially 2 cycle).

Now on a bad day. This is what will happen to 2 cycle engines when something goes wrong with GASAHOL. Here is the scenario:

1. Your 2 cycle mix has been in your shop for a month and the weather has been humid often. The dew on your windshield has to be cleaned every morning. Condensation has been forming in your 2 cycle mix can.
2. The moisture formed in your can will attract the ethanol from the gasoline. Now your 2 cycle mix can has gasoline/oil on the top and ethanol/water mix on the bottom (the water/ethanol is heavier than gas/oil).
3. You pour fuel into your trimmer. The ethanol/water is where your fuel filter is flopping (at the bottom of the trimmer gas tank). This has no lubrication, but will burn.
4. The engine draws the ethanol/water into the crankcase, then when the engine pushes it through the ports on the bottom end of the cylinder, the lack of lubrication scores the engine on the intake side. Now you have a dead or dying motor.

If the motor still runs, when it warms, it will starve for gas. You will constantly adjust it.

The bad thing is that this can happen to a brand new out of the box STIHL.

Many scenarios can occur with GASOHOL separating and destroying 2 cycle engines.

If you do not know who does or does not sell GASOHOL, do this test:
Get a glass rain gauge. Pour 10 parts of the fuel you want to use (gasoline only). Then pour 1 part water. Leave to set for a couple of hours or overnight. Observe it after waiting. IF THE WATER LEVEL ON THE BOTTOM APPEARS TO HAVE RISEN, THE RISE IS DUE TO THE WATER ATTRACTING THE ALCOHOL OUT OF THE FUEL. This is the enemy and it will destroy your engine.

Call fuel distributors and find out if they have ethanol in their fuel.

Low octane poor fuel is “like the flu”. GASAHOL is a “HEART ATTACK”.

Good luck
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Old 08-14-2008, 05:29 AM
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Keith Keith is offline
LawnSite Gold Member
Join Date: Dec 1999
Location: Central Florida
Posts: 3,973
My EBZ7001 does something similar on occasion. I actually thought the fuel line was getting kinked and not letting it get enough fuel.

One day about a month ago, I was trying to straighten the fuel line a little and popped the fuel tank grommet out. It nearly blew it out! Lots of pressure in the tank. Curious if this might have something to do with it running poorly, I began venting the tank when it has been sitting in the sun like that. In the last month it has not done it again.
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