Question about 2003 Suzuki RM 125

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How do I adjust valves on a Suzuki 80 Jr. - 2003 Suzuki RM 125

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What valves

Posted on Jan 01, 2014

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Posted on Jan 02, 2017

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SOURCE: my daughters 2001 suzuki jr-80

The bike probably has a bent shift fork. The only other possibility is a shift index wheel assembly has become loose or the spring has broken. Pray for the index wheel problem. That you may be able to fix yourself. The right side case comes off, then the clutch and kick starter. Now the index wheel assembly is accessibletombones49_193.gif. If it is a shift fork, I don't recommend the repair for the home mechanic. Some special tools are needed. The entire engine must be torn down to get to the forks. Please rate my answer. Thanks!

Posted on Jun 23, 2011

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I have a jr80 that appears to be running very rich. Symptoms incude: smokey exhaust, sluggish accelaration, fuel/oil spewing from exhaust manifold.


Hi, Luke if you have changed your fuel delivery system, air filter size or flow rate, mufflers or exhaust system or a significant change in altitude your carburetors need re-tuning and if your fuel system (gas tank, filters, fuel valve and carburetor) is contaminated with ethanol sludge, varnish, rust, dirt, water etc. or your bike has been sitting for months or years without running these components must be "PROPERLY" cleaned and reassembled "CORRECTLY" before any adjustments can be made. Tuning your carburetor is fairly simple once you understand the basic principals. You engine is a simple airbox sucking air in and blowing it out, it is finely tuned at the factory for maximum performance once you upset that delicate balance by changing air filters, camshafts or exhaust systems your performance may go down the and the engine may run poorly, you need to compensate the air-fuel mixture in the carburetor in order for the engine to run smoothly and at peak performance. If you are running multi carburetors you need to sync them first and make sure your air cleaner element is clean and dry for paper elements or lightly oiled for foam and meshed elements and properly installed. Here is how and where you compensate trouble: "TIP" if your engine "BOGS" your not getting enough fuel.
1. Closed to 1/8 throttle is managed by the air screw and pilot/slow jet.
2. 1/8 to 1/4 throttle is managed by the air-screw, pilot/slow jet, and throttle slide.
3. 1/4 to 1/2 throttle is managed by the throttle slide and jet needle.
4. 1/2 to 3/4 throttle is managed by the jet needle, needle jet, main jet, and air jet.
5. 3/4 to wide open throttle is managed by the main jet and air jet.
6. Wide open throttle is managed by the main jet.
If you are running lean, spark plug electrode color is white, engine runs hot and feels like it is starving for fuel you need to go up on the jet size or move the c-clip down one notch. If you are running rich, spark plug color is black or dark gray, the engine runs cool, and bogs down when accelerating you need to go down on jet size or move the c-clip up one notch. When your carburetor is properly tuned for maximum performance your spark plug electrode will be a light tan color like coffee with cream. If you prefer fuel economy over performance you can go down on main jet sizes until a satisfactory level of lower performance is acceptable versus MPH, your spark plug color will be whiter and your engine will run warmer. These tuning adjustments will only make improvements if your intake and exhaust system have no air leaks or sealing issues and the entire electrical system is in proper working order and you have no mechanical issues.
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.
2003 Suzuki JR 80 Questions
http://www.dirtbikeworld.net/forum/archive/index.php/t-116571.html
Suzuki RM85 Owner Service Manual
OEM parts for Suzuki
http://www.crservice.dk/Suzuki%20cross/JR50/JR50K6P03.pdf

Jul 04, 2017 | 2004 Suzuki JR 80

1 Answer

Suzuki jr80 takes too long for rpm to get back down to idle , after throttle is released. wasnt run for couple yrs. completely disassembled carb and cleaned. it starts 1-2kicks.not setting correctly?


Hi, Troy and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
2. Idle adjusting screw needs to be backed off.
4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Broken throttle return spring.
8. Damaged diaphragm or slide.
9. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector
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.
Lazy Slow Return to Idle or Erratically High Idle
2 Stroke suzuki JR80 tuning help
http://www.soemyanandarthetlwin.com/hwa/suzuki/suzuki-jr-80-service-manual.pdf
OEM parts for Suzuki
Suzuki DS80 and JR80 Motorcycle Cyclepedia Online Service Manual
Suzuki JR50 Owner Manual

May 25, 2017 | Suzuki Motorcycles

1 Answer

My 1985 Suzuki LT 125 starts and runs good just has a ticking an gets louder when revved up


Hi, Anonymous you may need a valve adjustment for more information about your question and valuable "FREE" downloads that you will need please click on the websites below. Good luck and have a nice day.
ATV Connection
How to Adjust Valves on Suzuki LT 125 eHow
valve adjusting on lt125
https://www.tradebit.com/filedetail.php/202631315-suzuki-lt125-service-manual-repair-1983-1987-lt

Apr 15, 2016 | Suzuki Motorcycles

1 Answer

Need valve lash specs for 1980 suzuki dr400


Suzuki DR400S - Motorcycle Specs

www.motorcyclespecs.co.za/model/suzu/suzuki_dr400s%2080.ht
1980. Engine. Air cooled, four stroke, single cylinder, SOHC, 2 valves per cylinder ....Valve adjustment can be done without a feeler gauge and the CDI has ..

Dr400 valve adjustment 1 - YouTube

? 2:08
www.youtube.com/watch?v=BH-KFrpwo3w
Nov 19, 2010 - Uploaded by obtrailriders
Dr400 valve adjustment 1. ... Suzuki DRZ 400 Valves clearance check \ sprawdzanie luzu zaworowego PART 2 ...

Nov 01, 2015 | Suzuki Cars & Trucks

1 Answer

Carburettor adjustment choking suzuki jr 80


make sure choke has come off , the carb could have dirt inside also so strip and clean the jets etc

Jan 15, 2014 | 2004 Suzuki JR 80

1 Answer

My daughters 2001 suzuki jr-80 was running fine, but the shifter jammed in gear, not sure what gear it's in but it will run. it was not crashed or even layed over at the time the problem originated....


The bike probably has a bent shift fork. The only other possibility is a shift index wheel assembly has become loose or the spring has broken. Pray for the index wheel problem. That you may be able to fix yourself. The right side case comes off, then the clutch and kick starter. Now the index wheel assembly is accessibletombones49_193.gif. If it is a shift fork, I don't recommend the repair for the home mechanic. Some special tools are needed. The entire engine must be torn down to get to the forks. Please rate my answer. Thanks!

Jun 22, 2011 | Suzuki Katana 600 Motorcycles

1 Answer

Cost for valve tappet adjustment /Suzuki 2005 S50 12,000 miles.


Usually in the $200 range, as the bike must be stone cold and takes a little time to get to everything. Most places charge up to $80/hour for labor. Do not be surprised if you see a 3 hour bill.
Hope this helps

JP

Nov 17, 2009 | 2005 Suzuki Boulevard C50

1 Answer

2002 jr 80 will idle but will not rev up


carbs really need to be inspected-a manual is a must-or a similar *** make-if oil n gas mix is rite ratio then ur ok-look at the electrical for any cuts,corrosion or looseness-no wheelies

Sep 09, 2009 | 1978 Suzuki GT 380

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