Question about Suzuki RM 250 Motorcycles

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1988 rm 250 idle screw needs adjusted - RM 250 Suzuki Motorcycles

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Posted on Jan 02, 2017

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SOURCE: Yamaha TTR 250, Idling Problem

check the inlet manifold rubber has not seperated from the aluminium part of the manifold ,this is very common on the ttr 250 and will cause the exact problem you have,if it is seperated either replace it or repair it with some good quality rtv sealant avoid sillicone sealant as it is not petrol resistant and will turn to jelly.adam

Posted on Apr 28, 2009

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1 Answer

How do you adjust the air and pilot screw on A 1988 rm 250


Hi Anonymous, I am sorry you can't find the first and best tool you ever bought for your Aprilia but despair not for a mere $10 you can download another one. For more information about your issue, please visit the websites below. Good luck and have a nice day.
Two Stroke Scooter ATV Carburetor Settings And Adjustments 1of4 Basics... https://www.tradebit.com/filesharing.php/search/0/1998+aprilia+rm+250

May 09, 2014 | 2001 Aprilia RS 125

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I need a carb diagram for yamaha tzr 250 cc motor cycle year 1988 it will not rev with out choke on . blocked jets?


Hi, Rolandwhitfo and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the blue links below. Good luck and have a wonderful day.
TZR 250 WON START
Will start but wont stay running without choke Yamaha Outboard Parts Forum
Yamaha TZR250 1987 Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-tz-owners-manuals

Aug 08, 2011 | 1988 Yamaha TZR 250

1 Answer

How do i adjust idle speed


There is a screw with a spring around it on the carb on the throat of the throttle slide. Just tighten the screw a little bit. As a matter of fact I would start the bike and adjust it with the bike running.

Please rate this. I helped you now will you please help me? Thanks! Have a great day!

Sep 21, 2010 | 2003 Suzuki RM 250

1 Answer

How many turns out do you set the idle mixture screw on the carbeurator of a 1988 suzuki rm 250, at low elevation?


Wow.this is a bit of 'how long is a bit of string'.An 88 rm is a quick bike and to get it right is good.Standard everything!!!! 2/12 to 3 turns on a gentle setting.This is the leaner mixture to get it up and running.Once done,go about another half turn out too get it a slight bit richer.This will save the lower end bearings.Hope this helps

Jan 02, 2010 | Suzuki RM 250 Motorcycles

1 Answer

1988 ram 50 carb needs adjustment because I threw


Attach a vacuum gauge to the manifold and a tachometer to the coil turn the adjustment needle valve in till the engine stumbles, then slowly back it out ''till you obtain the highest vacuum reading and best (steady) idle. then adjust the linkage stop screw, watching the tach for proper idle speed.

Aug 29, 2009 | 1988 Dodge Ram 50

1 Answer

Carb adjusting


get the bike started, hold the engine at a high idle. while holding the idle high, adjust the air fuel mixture screw until it sounds smooth. rev it up a few times and see if the engine is "snappier". let it return to an idle, then adjust the idle screw. it may take a few tries to get it right, just listen to the engine.. if this dont work, you may consider re-jetting the carb. hope this helps...

Apr 25, 2009 | 2003 Suzuki RM 125

1 Answer

Idle adjustment


If there is not a screw on the side of the carb then look at the top of the carb where the throttle cable connects. The fitting at the top of the carb is threaded and would adjust the carb idle. There may be a similer adjustment at the twist grip but I don't remember one there.

Hope you can rate this solution as a 'FixYa'

Mar 20, 2009 | 2005 Suzuki RM-Z 250

2 Answers

1988 F-250 460 engine stalls when dribing down the road


On older, carbureted engines, cold stalling (and hard starting) is most often due to an automatic choke that is sticking, misadjusted or broken. Cleaning the choke mechanism with aerosol carburetor cleaner may free up the choke allowing it to work properly again. If the choke housing as an electrical heating element, the element may not be receiving voltage when the key is on, or the element may have burned out (check resistance with an ohmmeter).

Other causes of stalling with a carburetor include an idle speed adjustment screw that is set too low (turn screw to increase idle speed rpm). The engine may stall if the idle fuel mixture screw(s) are not adjusted correctly or the idle mixture port(s) are dirty or clogged with fuel varnish deposits (clean the carburetor and readjust the idle mixture screws for smoothest idle). Stalling can also occur is there are vacuum leaks in the carburetor, under the carburetor (bad base gasket), or any vacuum hose connections to the carburetor or intake manifold

Jun 22, 2008 | 1988 Ford F 250

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