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Posted on Jul 06, 2009
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1994 JOHNSON 200 WONT RUN AT ALL WITHOUT CHOKE'ON CARBS CLEAN. WONT DRAW FUEL FROM CARBS COMP GOOD. EX CLEAR ,GOOD SPARK,?NEW TIMING BASE NO HELP. POWER PACK NO HELP. WONT IDLE AT ALL, RUNS FOR ABOUT 10 SEC AND DIES WITH PRIMER ONLY. GOOD FUEL PRESURE. HAVE DISCONECTED IGN SWITCH& SHIFT SWITCH ,TEMP NO HELP HAVE SUSPECTED WIRE HARNES WHAT ABOUT BLOCKING DIODES ? INSTALL NEW POWER HEAD NO HELP $ OUCH CARB SYNK CHECKED BY EVERYBODY THIS HAS STUMPED SEVERAL SHOPS PLEASE HELP

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  • reneeandroge Jul 08, 2009

    REEDS YES, COULD BE REED OR SEALS,BUT LETS GO TO THE BEGING #1 POWERHEAD BOUGHT IN PIECES THEY TOR DOWN, WONT IDLE NO POWER, REBUILT POWERHEAD REEDS LOOKED GOOD,NO LUCK WONT IDLE NO POWER #2POWERHEAD BOUGHT FROM SEAWAY. USED OLD INTAKE CARBS &ELECTRICAL STILL SAME NO IDLE AND POWER #3POWERHEAD I BOUGHT A RUNING 225 COMPLETE POWERHEAD USED WIRE HARNES & VRO FROM 200, RAN GOOD ONE WEEKEND , WENT ON VACATION WONT IDLE NO POWER. 3 POWERHEADS BASICLY SAME PROBLEMS REBUILT&USED WHAT KNOW

  • Anonymous May 11, 2010

    who built motor if crank seals are not good motor will not pull gas please dont leave me bad feedback im just tring to get an idea of where to start is the motor reed inducted?if so that would be a good place to start

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  • Posted on Jul 07, 2009
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If you have a primer bulb and the motor "recovers" after a near stall with a pump of the bulb, then you have to replace your fuel pump. Johnsons do have this problem often. Otherwise it could be the high speed jets although it sounds like you checked the carb good. Also if you have a primer bulb, Replace everything from the tank to the engine. Costs about $14 at Wal Mart, $55 at a boat place.

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1994 Honda magna 750 will not run with out choke on.
Ensure fresh gas, fuel line routing,fuel filter. You may have to remove and clean carbs. Before doing so, remove drain screws and catch fuel coming from each carb. This can be done by cutting out a plastic 20oz bottle.Based on your findings, decide if you need to clean carbs. Firstly check spark pluds for fouling, and air filter for restrictions. Let me know how this works out for you.
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Oct 08, 2017 • Honda Motorcycles
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1986 evin.175hp miss at hi & low speeds 2 mechs so far aux.gas tnks new plugs carbs rebuilt new power pks, replaced timing base new bulb still missing 2000$ so far in it
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Dec 25, 2013 • Evinrude / Johnson 135-150-175-200 HP...
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I have a 1992 GSF250 Bandit. Having trouble starting, battery charged, petrol full- attempts to kick over after a couple of goes put on choke and still wont start. Starts sometimes and not others.
You may have flooded the engine by now, leave the choke off and wind the throttle wide open. Wind the engine over to clear the fuel out. Then turn off, and back on again shut off the throttle. Try to start it without the choke or without opening the throttle. If it doesn't start turn it off and check your air filter make sure it isn't clogged.
Then check your carbs if it has them, slightly tap them on the bowls. Then find the screw on the bottem of the float bowl that lets the fuel out normally an allen head. Unscrew it and allow fuel to run out, then shut it off. Do the same for other carbs. Now try to start it again, if it starts then it was a faulty needle and seat and you might want to look at changing those. If you have a fuel tap make sure it is turned on, make sure you have plenty of fuel in the tank.

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I have three 1980 kz 1300 all of them run.one of them will start ,only runs on choke for about a min then dies.it will start back up but dies fast.new battery,has good spark,fuel getting to carbs,comp...
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Feb 04, 2018 • 1980 kawasaki KZ 1300 A2
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I have a 1999 katana 600. It will start and run with the choke on. However it will not run without the choke. I have cleaned the carbs and dipped everything in carb clean over night. The diphrams don't...
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Aug 20, 2010 • Suzuki GSX 600 F (Katana Motorcycles
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Starts and runs with choke on for about 1minute or so then starts to cut out and backfire out exhaust, then won't start again . i cleaned tank , fuel getting to carbs , new plugs, thinking coils bad? I did...
Sea foam isn't always the answer there is far better things to use, berryman B12 chemtool is the best i have found for thing that haven't been sitting for a awhile but just need a good clean or water problems.
On to the problem at hand, has your bike sat for any amount of time? if so you need to clean your carbs. the gas will varnish and block the jet. will the bike run without the choke? Check your coilby seeing if you have spark test each hole if you have good spark them you know that coils and pickup are working.
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Mar 21, 2010 • 1999 Yamaha YZF-R6
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74 cb200 wont start
1ST CHECK THE PLUG IS IT DRY AND CLEAN IF ANY DOUBTS REPLACE IT.as spark plug might work good out but under pressure its a bit differant . or check the valve clearance on Exhaust'Ihad the same trouble with my Triumph 5oo years ago
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Oct 05, 2009 • 1974 Honda CB 200
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Evinrude 3.3 does not run proper when the choke is off
It sounds like the manifold vacuum is low. This would mean the engine is getting more air than it needs and can not create the vacuum for fuel draw. When you choke it, the outside air is reduced and the vacuum goes up and more fuel is drawn in enriching the mixture. The raw gas can not atomize without the vacuum. You swing the other way when you dump gas without the choke.

If you can find a vacuum port to attach a vacuum gauge, you turn the airmixture screw until you have the most vacuum(highest) and then turn the mixture screw in until the vacuum just starts to drop. This is the optimum setting. Marine shops also use flow (meter)flaps to balance multiple carbs on a motor like they do on motorcycles.

You could get the timing checked because this will affect vacuum draw too. This site is suppose to have free manuals, but you may have to Browse the internet for other sources.
Let us know how you made out.
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GSXR 750 Slingshot wont rev past 5000rpm, with or without choke
I have seen this before a few things to do too make sure. First take the air filter out and shine a light use your fingers to move the slides up and down I suspect the springs that go on the slide is not seated in center you can tell from the slide going halfway and hanging up. Next, the boots on the slides only go on 1 way there is a notch on the carbs for them. I would guess this would fix you up if not we can get deeper into it with air-fuel mix screw settings.good luck
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Mar 23, 2009 • 1998 Suzuki GSX-R 750 W
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Wont accelarate
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