Question about 2005 Tomos ST

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Why does my tomos st stut off at a stop

My 2013 tomos shuts off at a stop. Carb. jets have been cleaned.

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: need to know about carb adjustment for tomos st

LIGHTLY seat the air screw and the throttle screw. Now open both of them up one and one-half turns. Adjust idle speed with the throttle screw. Normally, the throttle screw sticks out about 1/2" to 3/4" from the throat of the carb. The air screw is short and usually recessed. If the screws have been tightened down anything more than lightly, the screw seat may have indented the screw face. If the face is ringed, the engine usually will not run well. The screws would need to be replaced. Please rate my answer. Thanks.
tombones49_65.gif

Posted on Apr 08, 2011

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ruskinbikesh
  • 180 Answers

SOURCE: My tomos revival ran fine

Hello
Well i always do the easier method to find out the problem.
hers a few things to do to determine whats wrong.
1st pull spark plug and do compression test, a blown head gasket will lose compression.
if the gasket is blown then the compression test will read a low psi and drop suddenly
2nd worn piston rings will lose compression, the compression test will read a very low psi below 100 psi and may leak right down depending on how worn the rings are.

that would make you lose power.
have it tested to see which it is.

either way, a lose of power in the motor is caused by lose of compression in the motor.
you can do the test your self, you can buy a compression tester pretty cheap, just make sure you don't cross thread the connectors.
have a good weekend
Big Al

Posted on May 21, 2011

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Hi, Joe for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Honda ES6500k2A generator will not start. Oil,coolant and fuse are OK. No sediment in bowl. cannot find any jet to clean. Starts with fluid, but stops. Float is working


Main jet on carb is clogged. Starts when you prime but then will shut off.

Remove and disassemble carb taking pains to thoroughly clean the main jet area with cleaner.
Check the holes that you have in the bolt that holds the bowl in place - they must be clear! Spray cleaner up the tube that runs into the bowl.

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I have a Tomos a35 Sprint and I put a 70cc cylinder jug on it, a techno circuit pipe and I have a new carb. I up jetted it to a #58 and it starts only when the choke is down, once I take the choke off it...


You need to adjust the idle 1st.Main jet #58 is just for wide open throttle. Start by turning air screw all the way in "gently" till it stops, and back it out 1 and a half turns. Back out idle screw until slide is closed " not touching slide" . Turn until just contacts slide plus 1 full turn in opening slide. Start it up with the choke on and turn the air screw slowly in or out and slowly move the choke off till you can get it to run with the choke off. Than adjust idle screw " the one that moves the slide up and down to set the RPM. If you cant get her to idle with the choke off and the carb is air tight on the intake manifold. Carb might be to big. If you can get her to idle but it runs ruff I will try to help you tune the carb further. Good luck.

Apr 24, 2014 | 2005 Tomos Sprint

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Need to know about carb adjustment for tomos st sept 2010 question 1 the screw adjust questtion 2 finger turn adjustment what do either do and if totally screwed in how many turns out do i do...


LIGHTLY seat the air screw and the throttle screw. Now open both of them up one and one-half turns. Adjust idle speed with the throttle screw. Normally, the throttle screw sticks out about 1/2" to 3/4" from the throat of the carb. The air screw is short and usually recessed. If the screws have been tightened down anything more than lightly, the screw seat may have indented the screw face. If the face is ringed, the engine usually will not run well. The screws would need to be replaced. Please rate my answer. Thanks.
tombones49_65.gif

Apr 08, 2011 | 2008 Tomos Se 125 F

1 Answer

1995 Targa LX- starts with full choke, runs fast for 10+ seconds and then stalls but can easily be restarted by using the choke with the same results. Gas is flowing freely from tank.


Had same problem,if you take the carb off,take the nylon bushing out, look into manifold side of carb,there should be a very small hole there,that is a fuel passage(idle jet),more than likely it is clogged,use a bread tie and clean it,while carb is off you may want to clean and rebuild carb,hope that helps you out.

Feb 07, 2011 | 2005 Tomos Se 125 F

1 Answer

Brand new (69)miles won't stay running kicks but dies,still on 1st tank of gas tried reserve same thing can hear gas in tank.sprint moped not motorcycle 50cc


1. does fuel flow from the fuel hose to the carb?
2. do the floats in the carb allow gas to enter?
3. is the filter screen in the carb clean?
4. Is the main jet clean?
5. Is the pilot screw port clean?
6. See mopedarmy.com or mopedriders.org

if all else fails turn off the choke

Aug 11, 2010 | Tomos Se 125 F Motorcycles

1 Answer

I have a 2002 tomos revival scooter that will only idle with the choke on. Carb is clean. The manual refers to a faulty lamel valve? what is this and where is it found? can I adjust this valve? How do I...


There is no lamel valve, unless this is a foreign language. Your carb is not clean. It may appear clean, but the pilot system is still plugged. Replace the pilot jet, or get it totally unpluged. could be another part of it also.

Sep 29, 2009 | 2008 Tomos Se 125 F

1 Answer

WHATS THE MINORS MODS TO MAKE A SCOOTER TOMOS NITRO 49 CC GO AT 70 KMS


You must purchase a 70 cc piston and jug for this bike the parts can be acquired at bikebandit.com, also go up on the carb jet size and in some cases bore out the carb intake port.

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3 Answers

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Did you check for spark? Also try a new plug.

Mar 24, 2009 | 2008 Tomos Se 125 F

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