Question about Yamaha Motorcycles

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My motorcycle type yamaha 115Zcc, as i m trying push throttle much more than rpm 80 to 100 suddenly the engine stop running, but again as i kick start the engine back to normal running, it is happen

I have already modified my yamaha lagenda motorcycle 115Zcc from standard to big cylinder block 61mm type Yusta , Carburetor MIKUNI 30mm, CDI no cut off type BRT Dual Band Powermate and HI Camshaft.

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  • Yamaha Master
  • 39,945 Answers

Hi, Suhaimi and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a "LOAD" test if necessary, your battery may show 12.5 volts but have little or zero amps and needs to be replaced.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, points/condenser ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
10. Accelerator pump damaged or not working.
11. Water or dirt in the fuel system, carburetor or filter.
12. Restricted, blocked or kinked fuel line.
13. Fuel tank empty.
14. Fuel tank contaminated with ethanol sludge.
15. The gas cap is not venting properly or fuel tank venting system blocked.
16. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
17. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you need please click on the blue links below. Good luck and have a wonderful day.
http://www.motorcycleforum.com/59-motorcycle-repair/100103-please-help-bike-died-out-while-riding.html
engine stalls or dies suddenly help please
Yamaha 115Z Owner Manual
OEM parts for Yamaha
lagenda 115z zr t115se Download 4shared Judd

Posted on May 04, 2017

6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
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Posted on Jan 02, 2017

ginocussen
  • 216 Answers

SOURCE: Gilera Nordwest Carb setting

Hi,
I have a gilera RC 600 which has the same engine as the nordwest, the problem could be the carb needs to be stripped and cleaned and replace the foam air filter with a paper one. For accurate advice and spares which are quickly posted, contact BOB WRIGHT at 0044193451033. He is the official UK gilera specialist, tell him I sent you, say the guy in southern Ireland, and he will look after you. Good Luck.
PS please rate me if this helped

Posted on Jun 26, 2009

herbmeister
  • 7 Answers

SOURCE: Engine cutting out when open throttle. YAMAHA NEOS 50cc MOPED

i had a simuler problem with my honda cr 250 moto-x bike it would start fine and you could keep it ticking over with the throttle(i have deliberatly unscrewed the tickover in case i come off,it will cut out) when i got on it,it would go for about 400-500 metres then splutter and die and not start again for around 5 mins. i immediatly knew it was a fueling problem. so after stripping the carb and giving it a good clean out i was baffled when i got back on and it still done the same. i then dismantled the fuel tap cleaned it all out and put it back together and tested it,it was very very slow so i unsrewed my fuel cap a little and was greated with the familur gush it should deliver. problem solved! the vent in my fuel cap had crystalised up,so the fuel was coming out but the air was not getting in,causing a vacuum and slowing down the flow and basically emptying the carb quicker than it can fill back up!!! clean your carb,fuel tap and any vents in your cap or tank. if this does not work then your bike must be over fueling or low on compression.

Posted on Sep 18, 2009

czaa
  • 4514 Answers

SOURCE: carburetor identification!

try a motorcycle salvage yard-they know bikes or see your local dealer and talk to a tech kawa motor corp has an 800

Posted on Dec 26, 2009

  • 1 Answer

SOURCE: dirt bike thats hard to start..

needle and seat are worn out in carb, to much fuel is flooding cylinder. remove carb, clean, get new needle and seat, set float. problem goes away. pull your plug after kicking. its probably wet.
When you push, or pull start you evacuate excessive fuel, when engine is warm, easier to start extra fuel burns easier.

Posted on Jan 15, 2010

MakisRC51
  • 408 Answers

SOURCE: Looking for a Mikuni Carburetor for a Diamo Chol VTwin 2006 Motorcycle #26-88-L54f2

Are you sure it is the carburetor's fault and not the mechanical fuel pump's? (the **** underneath your fuel tank on your right hand)?Anyway your engine is the same with Yamaha's XV 250 Virago so you are looking for the same carburetor.I found 3 on the Italian eBay but they don't seem to ship worldwide.

Posted on Feb 10, 2012

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1 Answer

Bike engine stopped


This problem may have many reason but you can try one of the solutions, when suddenly engine stops and kick rod is going smooth without resistance try push and start by directly in 2nd gear or 1st gear and after it starts keep the engine running by giving small revs for a min....

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My sons pw50 was running fine then all of a sudden it stopped, I tried to kick start it again it will kick over but not engage, help


Hi, Dan and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Air/fuel mixture screw improperly adjusted.
10. Accelerator pump damaged or not working.
11. Water or dirt in the fuel system, carburetor or filter.
12. Restricted, blocked or kinked fuel line.
13. Fuel tank empty.
14. The gas cap is not venting properly or fuel tank venting system blocked.
15. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
16. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you need please click on the links below. Good luck and have a nice day.
Yamaha pw50 wont run Please help
pw50 won start please help
yamaha pw50 service manual pdf free
OEM parts for Yamaha
http://www.yamaha-motor.com/assets/service/manuals/2009/lit-11626-22-24_pw50_1574.pdf

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1 Answer

KTM 400 exe 2002 full throttle fuel starvation


It sounds like your float in your carb is getting stuck at high rpms. Try taking the bowel off and pushing the float up(make sure to have a bucket for fuel to run into). If it sticks that's the issue an easy fix.

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Problem kick starting yamaha wr400f,i have been using the de-compressor after trying for thirty minutes nothing,then had a few goes at bumping it off got started let it run for ten minutes then turned it...


Check the battery. If the voltage is low, you'll have a weak spark. If the battery is good, check the spark plug for proper gap - a worn plug can cause hard starting. Another possibility is degraded fuel; ethanol/gasoline mixtures deteriorate in a few months. If the engine fires off with a squirt of starter fluid in the throttle body, then dies, it's a fuel problem.

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1 Answer

Virago left on PRI and now won't start...


Check your oil level. If your carburetor overflowed and filled the engine with gas you may have fowled your air filter with oil/gas. If your level is too high you will have to change you oil. Also check your air filter to make sure is is not gas/oil fowled it may need changing.

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1 Answer

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There is a proper way to start the engine. Four controls are on your bike to assist in starting. Below are generic instructions.
  • The choke, used when the engine is cold. Pull the red knob for choke.
  • The " Hot Start " Lever, used when the engine is hot. Pull the lever to lean the fuel mix when the engine has been running.
  • The de-compression lever, always used.
  • The throttle, used to prime the cylinder, (power valve).
Don't kick, instead, push the kick lever downward. You will feel the back pressure as the piston is going upward on the compression stroke to the point the pressure is great enough that the kick lever "locks up". You are very close to TDC. NOW, pull in the de-compression lever. Push the kick lever a little bit more to get the piston past TDC. Now release the de-compression lever. Give the throttle a 1/4 turn then let it snap closed. A diaphragm, (Power valve), in the carb gives a shot of gas when this is done. DO NOT do this multiple times because you will flood the engine. Leave the throttle closed when kicking. A flooded engine will often backfire. Now give a strong kick through the full sweep of the kick start lever. Quickly get your foot off the kick lever at the end of the kick to avoid any chance of "kickback" from the kick lever. This happens in the case of a misfire, aka > backfire. It can be very painful, and can even break a leg. I am serious about that. Repeat the process (but without the throttle priming), for six kicks. After six kicks go ahead and twist the throttle again for a second priming. A good battery, a clean spark plug, a clean carb and clean air filter will also aid in starting. Note that not all carbs have a power valve. When a power valve is not present you should crack the throttle open only 1/8 inch from closed on each kick.

Go to this site and you can download a free PDF service manual. The site may take up to 20 seconds to load the complete list of manuals. Yours is on the list.
www.carlsalter.com/motorcycle-manuals.asp

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2 Answers

Bike stutters when started


check your fuel filter for or fuel lines for kinks,you may also check the grade of fuel

Jan 22, 2009 | Yamaha XJ 900 S Diversion Motorcycles

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