Question about Stihl Models 064, 066, Ms640, Ms660

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Flooding real bad

Wil not start floods bad done the usual things plug out dry out the lot no go

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Check and clean carb, sounds like the needle isnt seated in the carb properly, also check and possibly replace carb diaphrams

Posted on Mar 07, 2015

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1 Answer

Spark plugs wet


It is possible to flood the crankcase on a 2 stroke engine this will cause the plugs to saturate and the engine will not start. disconnect the fuel lines, remove the plugs, have a fire extinguisher close by attach the plugs to the caps and place them in the plug hole but do not screw then in, crank it over live and if the base is flooded the engine will spit fire from the plug holes do it until the engine is dry and then attempt to start it without the fuel lines connected and let it run until it stops. Reconnect the lines and see if it runs. If the float bowl has a bad float it will not shut off fuel to the bowl and flood the engine everytime.

Jan 25, 2015 | Winter Sports

1 Answer

2003 toyota sienna wont start sometimes But does turn over. Its not getting gas. After pumping pedal its starts


its not getting gas, is that a guess? or the results of a real test.
as per FSM book.?
the only test that proves not getting gas, is all spark plugs out and all are white and dry. (NOT GETTING GAS to the combustion chambers)
i think its flooding (sparks wet)
and all cars clear floods, with wide open throttle cranking, (A feature)
this magic feature, cuts all fuel cranking, to clear said flood.
(oper, guide covers this)

if this works,
ever consider a full tuneup? this decade? with filters?
if tuned up, then scan it to see if there are DTC errors cranking?
check for spark , during failures. ?
check for flooding? spark good,!
there are many causes of flooding, (spark good, tuned up)
  • too high fuel pressure
  • injectors leaking
  • fuel regulator bad.
  • no air supply starting, bad IAC STUCK CLOSED,
Try starting with 5% throttle ,creating a good human made, IAC, (fresh air)
each line has tests we do,, if you dont have tools, all this is just
water under the bridge.

do you want guessing (unsaid)
here:
  1. never tuned up.
  2. too high fuel pressure and flooding.
  3. and many more. i just rolled dice 2 times.

Dec 26, 2014 | 2003 Toyota Sienna

1 Answer

Honda gc 190 starts then floods and stops. Wont start again till plug is taken out and dried then repeats same thing


Float level or a sticking needle valve, check float level as if it is adjusted incorrectly it can cause the main jet to allow fuel to flood through, the needle valve can do the same.

Jul 28, 2014 | Honda Engine Gc160 Gc190 Gcv135 Gcv160...

1 Answer

F6a efi wont start


there is the list , and correct order that always works.
1: fuses. good?
2: 12vdc to all EFI parts (battery charged? at 12.6vdc? rested)
use a voltmeter, no guessing... and the VM dont lie.
3: good compression, on all cylinders. 150psi w.o.t
if all are real low the cam belt/chain slipped. (generic post)
4: good spark, the ECU cuts fuel ifs spark is gone, so spark
on gas engines, is #4. i check timing to see if cam slipped.
5: good fueling. (too much or too little, it will not start)
i check for flooding with spark plug tip checks, soaking wet is flooding.
dry is lost fuel, try test fuel check now, (spray fuel)
if flooded do the super secret unflood test in the operators guide.
SS-= cranking with wide open throttle.

i bet its running now.

skipping 60k mile tune up's will cause no starts
as will bad fuel.

Feb 26, 2014 | Suzuki Cars & Trucks

1 Answer

93 chevy Lumina new fuel pump and filter stars right up runs 5 min then stalls like its outa gas. Wait an hour and it will start and do the same thing


did test fuel work when dead,? try test fuel.
or examine spark tips, dry , starved, soaking with fuel ,flooded.
yes, dry,then check fuel pressure.
1psi bad
20 bad
30 good
60 is stuck closed regulator , horrid. flooding.
this works for all EFI cars.
see scotty at work
http://www.youtube.com/watch?v=064Ilsz8Fzg&feature=player_detailpage#t=0

Aug 12, 2013 | Geo Metro Cars & Trucks

1 Answer

2003 Suzuki Grand Vitara won't start engine


what engine, state engine size and country.
there can only be 3 ways, to fail.
bad engine (low compresssion, us the $20 tool at WOT and see over 170psi.
Bad spark
bad fueling.
just because spark coils (COPS?) work on other car , dont mean much.
what counts is your car , its a system.
the cops, have fast 5mS pulse when firing, you using a scope to see that?
Im so curious, why not to the time old test, use a real spark plug
attached to the COP end, spark plug shell grounded to engine metal
and crank, is spark good x4? or x6 if V6 (engine NOT STATED)
is it? then spark is good, leaving fueling.
do not touch the spark plug cranking, it can hit 100,000 volts.
I use a ground strap on the spark plug casing, hands free, or you can be hurt bad, by the spark or when you jump and cut arm backing off
on cars that flood, is it flooding?
I found my engine compression good, then found all 4 sparks fire good.
so i pull the fuel pump relay. killing fueling.
i then use "test fuel" to start engine (again, text book tests)
I use the new CRC brand of test fuel with top end oiling.
i spray it in the plenum, and it starts.
if the spark plugs are bad, (part oftune it up)
it may not start if flooded,
use WOT at the throttle (cuts fuel) and start any flooded engine.
if the spark tips are black and stink of raw fuel (wet with fuel)
that means flooding.
pull the fuel pump relay ,test fuel runs for 3 seconds. each time.
3 second spray max. each time.
if that works out, then find reason for flooding if flooding.
if not flooding, you find dry sparks.
then trouble shoot no fuel.
fuel pressure not near 30 PS?
fuel pressure too high say, 60, it will flood for ever.
there are only 3 tests.
and 4 counting wet /dry sparks.
the tests done, will put you on the correct path every time.
no guessing, no swapping parts to other cars.

May 28, 2013 | 2003 Suzuki Grand Vitara

1 Answer

Severely flooding out


Stop at autozone or pepboys & have free trouble code scan done & go from there. Get back to us if need help.

May 05, 2009 | Nissan Pickup Cars & Trucks

1 Answer

Chainsaw started just fine last night....won't start today.....pulled the plug and appears to be flooded


Hi wildcatlee,

I would love to help you with your problem. OK so if they chainsaw appears to be flooded or is flooded take it apart start by taking off any covers. Then there should be a little carburetor take that off and clean it out real good blow it with the air compressor. Open the chainsaw and find where the pistons at if you find it then blo that out with air from an air compressor real good. now put it all back together and it should start. One last thing take off the spark plug and clean it and put some gas on it, It should work now

Apr 15, 2009 | Homelite Garden

3 Answers

1976 Dodge motor home with a 360 will not start.


You are on the right path. You gave away the answer when you said you can dry the plugs and then it will start and run for a few seconds before flooding out again.

To solve the problem (there seem to be two of them) do the following:

You need to stop fuel from entering the engine, either disconnect the fuel line from the tank to the fuel pump or route the output from the fuel pump to a gas can or back to the tank, just don't let it get to the carb.

Pull the coil wire, pull the plugs and spin the motor over so it can get dried out.
Pulling the coil wire should help reduce the risk of the fuel being blown from the cylinders from somehow getting ignited. BE CAREFULL!!!

Now dry the plugs and put them back in, plug in the coil wire and fire it up. Based on what you have said it sounds like it will probably start up (if only for a second or three). Now pour two or three teaspoons of gasoline into the carb and start it again.

If it starts and then dies that is a good thing. Do the two or three teaspoons and start it two or three times. This will heat up the compression chambers a little and help to dry them out a little better.

Now, at this point it runs fine (well as fine a 2 or 3 teaspoons will run it) as long as it has fuel, air and spark.

Hook up the fuel line again and start it up. One of two things will take place.

1. All is well! Great, it was just REALLY flooded.

2. It runs for about 10 seconds before becoming flooded again.... ****, it sounds like your "new" carb is flooding the engine. Find out how!

Good luck. I have used this "fix" a few times over the years. Normally the engine is REALLY, REALLY, REALLY flooded. Usually because the original problem happened on a hot summer day and the float stuck when the engine was shut off. The heat of the engine boiled the gasoline which in turn flooded the engine. The float stayed stuck when they came back to start it and TA DA.

Several times a little tap on the side of the carb "cured" the problem and a fuel additive was used to clean up the sticky float issue.

In one instance the 4 banger was so flooded we had to snake a hose into the cylinders and **** the fuel out. We must have sucked a quart of fuel out of that little '80 Mustang. We still ended up draining the oil (it smelled like it was full of fuel too) and we spun it over until it quit spraying gasoline all over. Man was that a mess!!!

Mar 21, 2009 | 1983 Dodge Pickup

1 Answer

1991 tracker fuel regulator


Usually take it to a garage to have this type of test done,,,but be warned,,,if you have a lot of gasoline mixed in with your oil,,you can burn out engine components real fast here.

Oct 12, 2008 | 1991 Geo Tracker

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