Question about 2004 Suzuki RM-Z 250

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2005 Rmz250 wont start when hot.

The bike starts with two or three kicks when its cold and runs great, but if you stall or shut it off. it will not start back up 90% of the time. I've had to catch it in gear just to make it home a few times. please can anyone help?

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  • Paul Blessing May 11, 2010

    It bumb starts ok?

  • Anonymous Mar 31, 2014

    Kx no longer kick but can run and bup start it some time run ok but hold back some time I cleen carb as it feel like fuel not getin through a nuff is if I had a weak spark would the bike start? Please if anyone can help

  • Anonymous Mar 31, 2014

    Kx no longer kick but can run and bup start it some time run ok but hold back some time I cleen carb as it feel like fuel not getin through a nuff is if I had a weak spark would the bike start? Please if anyone can help

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  • Master
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YOUR BIKE HAS A POWER VALVE (DIAPHRAM FUEL PUMP) THAT GIVES A SHOT OF GAS EACH TIME THE THROTTLE IS TWISTED. WHEN THE BIKE IS HOT, IT FLOODS EASILY. DON'T HIT THE THROTTLE WHEN STARTING THE BIKE WHEN THE ENGINE IS HOT.

Posted on Jul 31, 2009

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  • Suzuki Master
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Think u should have the carb looked at-but think electrical first by inspecting the system-sounds like a failing magneto or corroded wires is it water cooled??

Posted on Jul 31, 2009

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My 1994 xr6004 has good compression and has had a new top end, it runs awesome and kicks over fairly easy when cold and runs/drives great, but as soon as it warms up and you shut it off or it stalls out,...


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2007 honda crf 250 r hard starting when cold ,


There is a proper way to start an engine. Most bikes have four controls to assist in starting.
  • The choke, used when the engine is cold. Pull the red knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
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Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Now release the de-compression lever. Give the throttle a 1/4 turn then let it snap closed. A diaphragm in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. A flooded engine will often backfire. Now give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from the kick lever. This happens in the case of a misfire, aka > backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), until the bike starts. Go ahead and give it another primer shot after the 5th kick attempt. A good battery, a clean spark plug, a clean carb and clean air filter will also aid in starting.

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2 Answers

2004 rmz250 wont kick start will usually compression start also runs hot


Sounds like the timing may be advance too far or the carb could be needing adj.

But since its running hot first check with the timing....there may be other issues such as wear or lack of oiling causeing your problem as well

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Jul 19, 2009 | 2005 Suzuki RM-Z 250

1 Answer

Bike is sometimes hard to start.When bike stalls and goes dead,it is hard to start again.This is a 2003 honda crf450.


There is a proper way to start the engine. Four controls are on your bike to assist in starting.
  • The choke, used when the engine is cold. Pull the red knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
  • The throttle, used to prime the cylinder.
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Now release the de-compression lever. Give the throttle a 1/4 turn then let it snap closed. A diaphragm in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. A flooded engine will often backfire. Now give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from the kick lever. This happens in the case of a misfire, aka > backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), until the bike starts. A good battery, a clean spark plug, a clean carb and clean air filter will also aid in starting.

Jun 28, 2009 | 2003 Honda CRF 450 R

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