Question about 2005 Suzuki RM 125

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Hi got suzuki rm 125 with 144 kit couple of weeks ago the bike starting missing just before the powervalve comes in i changed the plug cleaned carb and checked the ree valves but seemed fine apart from one of the ree valves shims but it was sealing fine so but it back together and same problem until one day it ran perfect for about three days and then back to square one again

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 3567 Answers

SOURCE: early 80's rm 125 carb help

Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

The 'port' questions should be answered by the following.
Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road.


Please rate this solution. Thanks thejoker1879!

Posted on Apr 02, 2009

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  • 3567 Answers

SOURCE: 2003 Suzuki RM 125 with no power band.

Scatter gun approach > thoughts to check out > > >
Clean and dry the air filter? Go back to a stock main jet, at least to check things out? Are "O" ring seals on the main jet going bad?Partial internal collapse in exhaust (remove exhaust pipe & do a quick run down the alley), Install a new stock NGK spark plug, Be sure battery connections are clean and tight, Be sure intake manifold and carb are good and tight.

Hope this helps!

Posted on Apr 04, 2009

  • 68 Answers

SOURCE: no spark cold on rm 125

could be stator or the coil or cdi box

Posted on May 14, 2009

voodoomox
  • 1689 Answers

SOURCE: 2003 Suzuki rm 125 repair manual

here you go buddy,

http://www.tradebit.com/filedetail.php/812559-2003-suzuki-rm125-motorcycle-service-manual

http://www.pro-bike.ro/forums/index.php?autocom=downloads&showfile=514

http://www.themotorbookstore.com/clymsuzrm19.html

regards,

voodoo

Posted on Jul 23, 2009

  • 440 Answers

SOURCE: 91 SUZUKI RM 125 CLUTCH PROBLEM

First, try the cable adjustment at the lever end, if no more movement re-adjust inwards, then adjust at the clutch end.
If no joy, then it is either the lifter mechanism or the clutch its self.
Ride Safe
Bike-Doc

Please mark this as useful (if it has been!!)

Posted on Aug 03, 2009

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Have you checked the actual fuel pipes for flow ? You might need a carb refurbish kit. Weak vacuum causes similar type problems.

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My 2003 Suzuki rm 125 kick starts with brand new spark plug then eventually bogs down and dies, does the same when push started, does it need new piston and rings?


HI,,sounds like your plug is fouling,,what pre-mix ratio are you running? and has the carb been played with? run 32-1 premix and remove and clean the carb.

piston and rings are not to blame for this behaviour.

Mar 23, 2011 | 2003 Suzuki RM 125

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2000 suzuki rm 80 new piston rings top end kit bike wont run rite starts sometimes but only runs for a minuite or so then bogs out and wont start again .


What this sounds like is a carb issue. There are screws that are located on the carb that control the air and fuel mixture, if you are getting to much air then it will crank and run only for a minute or two then shut off. Have you tried adjusting it? It can take some time to get it right as each bike engine is going to be slightly different and all adjustments are going to be bike/engine specific. I would recommend adjusting the air and fuel mixture, that will probably work for ya. Hope that this helped.

Jan 21, 2011 | 2003 Suzuki RM 125

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I just purchased a 1985 Suzuki RM 250 that hasn't been started in 8 years. What suggestions would you have before I try and start it?


Change gearbox oil, install a new spark plug. Check for spark before installing the plug. Remove, dis-assemble, and clean the carb by soaking it in denatured alcohol for 15 minutes then finish with a can of spray carb cleaner. Wear goggles to protect your eyes from the spray.
In stall a new air filter. Remove the gas tank and clean it out. Install an in-line fuel filter to prevent trash from the tank getting into the carb. Use a can of spray starting fluid on the air filter to aid in starting.

Jul 04, 2010 | 2003 Suzuki RM 250

1 Answer

Have a 1992 suzuki 125 rm bike cant get it to


try changing gas . dont forget to empty out carb bowl also check for spark might have a fouled spark plug .

Jan 03, 2010 | Suzuki RM 125 Motorcycles

2 Answers

2003 Suzuki RM 125 with no power band.


Scatter gun approach > thoughts to check out > > >
Clean and dry the air filter? Go back to a stock main jet, at least to check things out? Are "O" ring seals on the main jet going bad?Partial internal collapse in exhaust (remove exhaust pipe & do a quick run down the alley), Install a new stock NGK spark plug, Be sure battery connections are clean and tight, Be sure intake manifold and carb are good and tight.

Hope this helps!

Apr 03, 2009 | 2003 Suzuki RM 125

2 Answers

Early 80's rm 125 carb help


Remove the water trap bowl at the bottom of the petcock, (gas valve). Any water or trash in the bowl? Drain a cup of gas from the tank. Any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

The 'port' questions should be answered by the following.
Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the two screws on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. Set the idle speed with the idle screw. This process should get you back on the road.


Please rate this solution. Thanks thejoker1879!

Mar 31, 2009 | Suzuki RM 125 Motorcycles

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