Question about 2005 Yamaha WR 250 F

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No rpms=no power

I am told to shorten the throttle stop in the carb to gain more rpms.And to loop the electrical under the fuel tank?

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Don't mess with the electrical wire placements. Wiring has nothing to do with revs. Shortening the throttle stop simply means removing the slack in the throttle line. This can help revs.

Posted on Mar 13, 2009

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1 Answer

Bogs past idle


when you go to acceleration ,there is a power circuit in the carbys that allows for extra fuel to increase the rpms.
it is either a power valve or pump operation. This circuit is not working ( blocked or non-valves not fitted correctly)
if there is no such circuit , there is still a blockage in the main jet and emulsion tube circuits.

Apr 27, 2015 | Tank Motorcycles

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Is the fuel pump electric on1988 Isuzu p up


ok no engine stated. cant help much if you can show VIN or engine name.
we can't guess the following
  1. engine
  2. if carb or EFI (1988 in usa they had carbs and EFI in 1 year)
  3. country, sorry, no country no joy, as varies by that.
why not just look, lets do this simple task.
  1. look at engine, its a carb or just throttle body, ?
  2. is the fuel lines to injector (s) and follow it to tank) it arrives at a filter, go past filter to tank and see a fuel pump rack in tank and 2 wires to rack and 2 to the fuel level sender, so 4 wires total that is EFI there. and is Electric pumps on all gas engines.
  3. if carb, it can be electric or mechanical off cam. drive. same deal see that fuel line it goes to 1 or the other, if electric it has 2 wires, not its pure mechanical.
on older cars there are 2 EFI fuel lines, a loop its called.
1 is like 30psi feed line an the other is just return. 0psi.
1 example of just 2 1988 engines.
he D1 is carb (dang carbs., LOL)
the E1 is EFI.


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Apr 13, 2015 | Isuzu Cars & Trucks

1 Answer

Van stalls at low rpms but not all the time ?


If old van you have a carb. Jet plugged with trash. If you have fuel injection or throttle body injection, one or more of your jets is partially blocked. Try a cleaner added to your fuel tank. May end up replacing the part/s

Jan 06, 2015 | Cars & Trucks

1 Answer

Truck starts and idles won't gain rpms when throttle pressed then dies out


the engine has jumped timing or you have a air leak in the manifold to carb if its fuel injected check for how much fuel pressure your getting also replace spark plugs and wires cap rotor

Apr 02, 2013 | 1990 Ford Bronco

1 Answer

It stalls every now and then when I close the throttle. no one can give me an answer about this even the dealer.


sounds like fuel mixture adjustment is to rich,if you blip the throttle and rpms drop then rise its to rich,if blip throttle and rpms hang then drop,its to lean,on the under side of carb there are adjustment screws,if they are on backside of carb,between carb and airbox(filter) then its air fuel,to lean mixture turn screw counter clock wise 1/4 turn,if they are between carb and motor then they are fuel air,to lean turn clock wise 1/4 turn.then check.may have to try couple times.carbs may still have plugs installed,they have to be removed first to do this adjustment.

Feb 05, 2011 | Suzuki AN 400 Burgman Motorcycles

1 Answer

The bike will not take throttle, refuses actually, carbs are clean and in sync, Bike idles perfectly, but when any throttle is given, the engine is restricted to 2k rpms. Stock jetting, and a slip on pipe.


i think the fuel filter inside the tank is dirty, or the fuel on the float bowl of the carb is low that when you give gas the fuel in the bowl runs out.

Aug 19, 2010 | 1991 Suzuki GSF 400 Bandit

1 Answer

Broken throttle cable


This may be a real hard job. You will have to remove the fuel tank, If your bike has a large air box under the tank you will have to remove it. Now you should be able to see any cables to the carbs and any clips or brackets that hold them in place. You may have to remove the carb's also - reason will be to gain access to the cable ends, they have a ball that fits into a slot on the carb linkage and can be very tight or hard to reach. First things things first, disconnect the battery. Hope this helps you get started.

Jan 02, 2010 | 1996 Triumph Triumph Thunderbird

1 Answer

Bandit idles HIGH when hot Just bought the bike! My bandit 1200S, 1997, runs smoothly when the engine is cool. But at hot temps when the bike warms up, the idle increases to 3000rpms. It doesnt want to...


OK.... firstly change the fuel cap, the tank needs to be vented correctly so pressure will equalise. Normally a rich fuel concentration will cause the engine to die not run high. From what your telling me it sounds like the throttle cables are not adjusted properly, if they are too tight the rpm's will not come back to idle. if this is the case you might be able to twist the throttle the opposite direction to lower the revs at idle. For the excess fuel problem, it could be what you say about the fuel cap, another thing will be the Needle and Seat might need changing or the float levels are not adjusted correctly. Whilst your there fit a good inline fuel filter, it will stop problems in the future.

Nov 12, 2009 | 1997 Suzuki GSF 1200 Bandit S

3 Answers

MOWER WILL NOT RUN AT FULL POWER .


try empting the feul tank and put fresh feul in with a little dry gas treatment if that dont work try getting some carb cleaner in a spray can start mower and gingerly spay into carb trying not to over flood it keep spraying untill running smooth change CRANKCASE OIL and AIR FILTER.

Apr 25, 2009 | Mtd Yard - Man 160cc, 21" Self - Propelled...

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