Question about Suzuki RM 125 Motorcycles

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My rm 125 is losing power when power band trys to kick in

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 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

  • 1 Answer

SOURCE: Kawasaki KMX 125 losing power

hi man,
I had a similar problem, so maybe I can help you. it can be connected with air filter. under your seat there should be some kind of cover on the air filter. just remove it. I've noticed this problem when I unrestricted my KMX 125. the hole on the cover on the air filter is too small.

Posted on Apr 14, 2009

goofduck
  • 490 Answers

SOURCE: i have a suzuki rm 125, when hits higher rpm's it

sounds like it might be a chain too loose or worn out and it is jumping teeth on the sprockets

Posted on Apr 28, 2009

  • 17 Answers

SOURCE: I have a 1990 suzuki rm 125 starts first kick, but

I'd start by thoroughly cleaning out your carb.,...check/replace the main jet with a leaner, [higher #], jet...change/clean pilot jet also,..spray carb cleaner in all holes and blow out w/compressed air. Re-check your float height and/or any damage to the float pin+tangs etc. Maybe try a 50:1 gas:oil mixture. Perform a leakdown test,..air will cause boggs as well. *[p.s.; does bike blow oil out exhaust?].

Posted on Apr 12, 2010

gokulegv
  • 144 Answers

SOURCE: my rm 125 isnt getn to the power band in 1st gear?

The following possibility for your problems are mention below kindly check
1. Check the Engine Acceleration 2. Clean the plug 3. Check for any blockage in silencer 4. Clean the carbonizer
Kindly rate my help++ Thank you

Posted on May 09, 2010

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1 Answer

My suzuki rm 125 power banbs dont work. when i ride it theres no change at all


You should feel a surge of power as the power band comes into rpm range. If not, the first thing to check is the exhaust. A plugged ( or partially plugged ), exhaust system can be the problem. If no mud has plugged the exhaust, then remove the exhaust system and go for a test ride down the street to see if the power band surge problem is fixed. This would indicate an internal collapse of the exhaust system. You will need a new exhaust if that is the case.

Jul 02, 2010 | 2003 Suzuki RM 125

1 Answer

I have a 1990 suzuki rm 125 starts first kick, but boggs alot, every once and awhile power band kicks in and it runs good. I checked spark good and blue, checked reed valve in good shape. pulled head...


I'd start by thoroughly cleaning out your carb.,...check/replace the main jet with a leaner, [higher #], jet...change/clean pilot jet also,..spray carb cleaner in all holes and blow out w/compressed air. Re-check your float height and/or any damage to the float pin+tangs etc. Maybe try a 50:1 gas:oil mixture. Perform a leakdown test,..air will cause boggs as well. *[p.s.; does bike blow oil out exhaust?].

Apr 09, 2010 | 2003 Suzuki RM 125

2 Answers

I have a 2001 suzuki RM125 and it wont kick start and the power band wont kick in,It will start write up if pushed but the power band will not kick in..Thanks Greg...N.O. L.A.


it may just be dirty carb jets or no fule from the tank getting to the carb if it runs better with the choke on its likly to be jets blocked up

Mar 18, 2010 | 2003 Suzuki RM 125

1 Answer

My rm 125 is jumping out of gear?


Do you "kick shift" a lot? (shift at high rpm without the clutch) or did the gear box run low on oil at any point that you know of? If so the syncros in the gear box may be worn. Probably not a do it yourself fix, unless you are familiar with this.
Good luck. Please rate, thanks.

Mar 03, 2010 | 2003 Suzuki RM 125

3 Answers

Bike boggs down no powerband rm 250


i have a 92 rm 250 an i just had it fully rebuilt an it laggs in power band an splutters an feels guttles

Oct 09, 2009 | 2003 Suzuki RM 250

3 Answers

How do i set my suzuki rm 125 carb to the right setting and does any 1 know what the setting should be please thanks graham


Turn the air screw and throttle screw all the way inward. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. The carb is now set back to factory specs assuming no one has changed out the main jet or played with the float level..

Please rate this solution. Thanks!

Jul 18, 2009 | 2003 Suzuki RM 125

1 Answer

My 01 yz 125 wont start with kick start,n loses power in low rpms


sounds if you picked up some water/dirt in fuel when was low

clean fuel bowl and flush carb by drain port if still ruff then remove carb for cleaning

May 19, 2009 | 2003 Yamaha YZ 250 F

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

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