Question about 2005 Suzuki RM-Z 450

1 Answer

Bike will not idle

My bike woulnt idle without me constantly reving it up

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 3,567 Answers

Remove and clean the carb. Reassemble then adjust the pilot screw. This screw is on the bottom outside of the carb centered L & R and forward of the main jet. The screw is nearly recessed in the carb. Turn the screw out 1/2 turn to richen the mixture if the cleaning alone doesn't do the trick. Also, move the clip on the jet needle down one notch for better low speed response. Reset the idle speed as needed.

Please rate this answer. Thanks dtpenn!

Posted on Apr 20, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

We understand that your problem is: Me have a Yamaha v-star 1100 custom. He parked it for 1 1/2- 2 years in a storage unit. This whole week we've been working on his bike trying to get it started. We...

When you first turn the key on, you should hear the fuel pump come on and build pressure - it will be a ticking noise. When the pressure is low the pump will run continuously, when the pressure comes up, the ticking will slow down and the pump will stop. The fuel pump is located behind the lowest cover on the left side of the bike - but you can hear it normally with the cover in place. If it's not working, check the fuse - it's in the same area as the pump if I recall correctly.

Also - check your fuel filter - it's under the seat behind the first plastic cover you'll see when you take the seat off.

If none of that works, you might want to drain the tank and pull the petcoc(k) and check the filters on it.


Feb 23, 2011 | 2007 Yamaha V Star 1100 Custom

1 Answer

My cbf250 honda will not idle. The engine speed will vary between 1500 rpm to 3000 rpm without any input. Also if the engine is reved whist the bike is on the stand the engine speed will not drop back...

First check to make sure that both of the chokes are not sticking closed after the bike is warmed up. Also check if the throttle grip freeplay is comfortable (2--6 mm) when it sits in idling position. If both are fine then most probably the carburetor may need adjustment & should be left to a trained technician.

Nov 12, 2010 | 2006 Honda CBF 250

1 Answer

My gs500f is back firing through the CARB. the carbs where removed and cleaned they where in good codition.when the suzuki mechanic reassembled the bike and started it the bike dosent want to adjust down...

Lean mixtures burn very slowly, at times slowly enough to continue burning through the power and exhaust stroke, causing a backfire when the intake valve opens, and that flame gets a shot at the new mixture charge.

In normal operation, as the engine slows, the fuel delivery from the main circuit falls off, and the idle circuit is supposed to take over. If the idle circuit flows insufficiently, that becomes a transition to fuel starvation.

You can try pointing an unlit propane torch into the inlet air, and see if you can get closer to an idle while supplying a supplementary fuel source. You will need to do this in a way that gets propane to both carburetor inlets, maybe rigging a Y with vacuum hoses and electrical tape...

This started with work on the carburetors, so the fuel system would be the most suspect. That, and the fact that it will run at higher RPM would seem to rule out fuel delivery.

I was looking around at photos while developing this answer (needed to know whether this was a twin or a 4-cylinder), and one resource said the idle speed should be 1,200. I don't know if that's right, but maybe 1,000 RPM is too slow for this motor to keep it together. (I do doubt that, though.)

When I wrote that last sentence, I started to second guess myself, thinking "What if the fuel shutoff(s) is/are vacuum operated, and as the bike approaches idle there is insufficient vacuum to hold it/them open?" But the I rejected that, because there is even less vacuum at cranking speeds, yet the bike starts.

Jun 26, 2010 | 2005 Suzuki GS 500 F

1 Answer

My 400 ss is reving high when it is warmed up

First check entire length of throttle cable for kinks, crimping or binding. (especially near steering head) Check function of twist grip, it must rotate smoothly and spring back when released. Ensure choke is turned off after initial warm-up. If no change, turn out idle screw fully,(owner's manual refers) start bike and keep throttle at idle speed and screw in idle screw till it engages.

Apr 17, 2010 | 1992 Ducati 400 SS

1 Answer

I have a problem with the carb. Nothing wrong

sounds like the little nip snaper has turned the fule mix in to far and its running very week now run up the engine and unscrew the fule mix screw till the bike ticks over without choke being on the second screw is for tickover speed if the bike keeps stoping turn in the other screw till its reving a bit

Feb 19, 2010 | 2002 Harley Davidson FXD Dyna Super Glide

3 Answers

Revs itself

You have an air leak at the manifold. Over-tightening can warp a manifold. The best thing to do here is to get a set of manifold gaskets and replace the old ones. Tighten the bolts evenly in three stages. Seven foot lbs of torque is proper.

Apr 06, 2009 | 2002 Yamaha YZF 600 R thunder cat

1 Answer

1991 CR 500 (reving to high on idle high serges)

take some wd 40 & spray around the carb boot while running to see if the idle drops for a few seconds. sounds like you have an intake side air leak causing a lean condition making the motor rev high.

Feb 16, 2009 | 2001 Honda CR 500 R

1 Answer

My idle keeps reving to about 15000rpms

well if the idle is surging(going from 1000 to 1500) you probably have air bubbles in your radiator. i had the same problem. just run your car and then fill it with anitfreeze and let it run without the cap on so all the airbubbles to get out.
and if it just stays at a constant 1500 you can just turn the idle down. a mechanic can do it pretty cheap

Nov 20, 2008 | 1991 Acura Integra Hatchback

Not finding what you are looking for?
2005 Suzuki RM-Z 450 Logo

348 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts


Level 3 Expert

76846 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers


Level 2 Expert

83 Answers

Are you a Suzuki Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides