20 Most Recent 1982 Yamaha Xj750 Xj 750 Y140 Maxim Air Box Questions & Answers


Hi, 11545 for this scenario you will need your service/owners manual if you can not find the best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below and for more specific information or questions at no charge please feel free to contact me at xlch@mail.com. Good luck and have a wonderful day. 1981 yamaha xj750 seca fuse box diagram Google Search
HOW TO Install an aftermarket fuse box
Yamaha XJ750 Owner Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1982 Yamaha... | Answered on May 21, 2017


DO YOU MEANTHE VALVE TAPPET ADJUSTMENT ??

1982 Yamaha... | Answered on Mar 10, 2015


need to know which wires?????

1982 Yamaha... | Answered on Feb 02, 2015


bad fuse or wiring--a fuse can look good but bad--u need a test lite to confirm------the same w wiring--may need to inspect whole harness to find a flaw------bike is 30yrs--getta clymer manual or the library has one or similar-----asians bikes have a basic makeup

1982 Yamaha... | Answered on Jul 21, 2014


have you put too much oil in it?,,may sound like a stupid question.Only other alternative is to revert to the original oil asusing synthetic oil on some engines that were designed to run on 20/50 mineral oil maycause a problem called bearing skate. Stick with the correct oil

1982 Yamaha... | Answered on Jun 13, 2014


May I help you with a particular issue?

1982 Yamaha... | Answered on Jun 13, 2014


sounds like low speed jet dirty !

1982 Yamaha... | Answered on Jun 09, 2014


1,3,4,2

1982 Yamaha... | Answered on Apr 14, 2014


possible blow fuse or mother board circuit gone

1982 Yamaha... | Answered on Oct 19, 2013


Clean/rebuild your carbs and then synchronize them...or take it to a professional who has the tools and synchronizing gages.

1982 Yamaha... | Answered on Sep 26, 2013


Check to make sure that you have no intake or exhaust leaks anywhere in your system. Once you have made sure the system is sealed you need to perform a plug chop and read your spark plugs to find out if you are running rich or lean in that particular throttle position and adjust the carburetor accordingly. Judging from the ramp range you stated, it sounds like your jet needle may be running rich. If the needle has different clip positions you may want to move the clip up (so the the needle sinks lower into the carb) to lean it out a bit on that circuit. You may also have to adjust the pilot screw as depending on the throttle position it may also be affecting this rev range. Another possibility is that you may have gone with a main jet that is too large. You stated that the new main jet is a 122 to compensate for an aftermarket exhaust. What was the original main jet size? Usually exhaust changes do not need much if any jetting changes. One to two sizes up is all you would need at the most.

1982 Yamaha... | Answered on Jan 26, 2013


you are getting water in the oil , we can not help you

Yamaha... | Answered Yesterday


Maybe..but the wire frim alternator to batt cud b worn out or connections bad. Alternator brushes mite need old

Yamaha... | Answered on Nov 15, 2019


Hi, Anonymous the vast majority of service, parts fiche, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee of $15 and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available and some were never printed in English. The Indian and Philippine markets are usually in E-book format only, for these rare occasions I shall look on eBay and find the cheapest one available. Most of the manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have. If there is no $ sign after the manual link it is free to download.
To download your manual for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://biobug.org/motorcycle/xs850/Yamaha-XS70-XS850-Service-Manual.pdf
https://www.partsfish.com/page/oem-parts-for-yamaha
http://mybikemanuals.com/yamaha/
https://bikez.com/motorcycles/yamaha_xs_750_special_1981.php
https://en.wikipedia.org/wiki/Yamaha_XS750

Yamaha... | Answered on Nov 10, 2019


Hi, Chet for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $ you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?q=Wiring+diagram+1981+Yamaha+XJ750+Seca&tbm=isch&source=univ&sa=X&ved=2ahUKEwjP6Ybv8N3lAhWKv1kKHRc4DQcQsAR6BAgFEAE&biw=1440&bih=757
http://classiccycles.org/1852/597985.html
https://www.xjcd.org/book/export/html/77
https://www.partsfish.com/page/oem-parts-for-yamaha
http://mybikemanuals.com/yamaha/

Yamaha... | Answered on Nov 09, 2019


Should be around 120 to 130 at cranking should have a decompression valve that brings it down to that, running it's around 170 to 180

Yamaha... | Answered on Nov 03, 2019


Hi, Aron before testing any electrical component in the Turn Signal Light Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test because your battery may have 12.5 volts or more but little or zero amps causing the battery to be faulty and must be replaced, "AGM" batteries fall into this category more so than lead-acid types, also before diagnosing any turn signal/running light/parking light issue make sure the bulb is good and the light fuse has continuity with a test light. If you have replaced your OEM lights with one or all LED lights you are going to need a load equalizer.
If no turn signals are working the cause could be a faulty turn signal module/flasher or the connector going to it, look for corroded, loose, or broken pins/sockets. Contact spray cleaner is great for removing corrosion.
If your turn signal comes on but takes several seconds before it starts flashing you may have dirty contacts in the turn signal switch/button, the switch needs to be opened up and cleaned also the flasher may be starting to fail. It should be noted that cold weather will only exacerbate the situation especially when temperatures drop down below freezing and the location of the component, turn signal switches on the handlebar are at the mercy of the oncoming freezing 70 mph wind and makes it hard for the contacts to do their job covered in frozen grease/grime
If all four turn signals flash at the same time like hazard lights even though you only pressed one turn signal button then you have a LED light in the circuit and need a load equalizer that can be purchased from any motorcycle parts supplier.
If your speedometer does not function properly it will have to be fixed first because your turn signal module gets the data from the speedometer for normal turn signal function.
If your front turn signals don't work use a test light to check for power and ground at the bulb socket, then start backtracking the wiring through every wire connector to the turn signal switch/button and check for continuity, go all the way back to the fuse if necessary to find the cause of the malfunction.
If your rear turn signals don't work check your rear fender wiring harness connector first, look for, corroded, broken, loose pins/sockets, power, and a good ground, the harness connector is usually located under the seat on the front of the rear fender then keep tracing the wiring look for obvious harness damage caused by the rear tire.
If you still can't find the malfunction backtrack from the rear fender wiring harness connector.
If one side does not work you could have a faulty turn signal switch or module check for continuity.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.motorcyclecruiser.com/basic-electronic-troubleshooting/
https://www.motorcyclenews.com/new-rider/choosing-kit/2011/august/aug3011-why-do-bulbs-keep-blowing-/
http://www.family-motorsports.net/GY6-50cc-150cc.pdf
https://www.partsfish.com/page/oem-parts-for-yamaha
http://www.yamaha-motor.com.my/wp-content/uploads/2019/01/BC1-Nmax-EN.pdf

Yamaha... | Answered on Nov 01, 2019


Hi, Jose for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere zero $ you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.google.com/search?q=Wiring+diagram+1975+Yamaha+DT+400&tbm=isch&source=univ&sa=X&ved=2ahUKEwjezcXm-cTlAhWSuVkKHW2ZDfsQsAR6BAgJEAE&biw=1440&bih=757
https://yamaha-enduros.com/index.php/forum/74-76-twin-shock/1232-1975-dt400-wiring
http://classiccycles.org/1852/597985.html
https://www.manualslib.com/manual/999370/Yamaha-Dt250d.html
https://www.partsfish.com/page/oem-parts-for-yamaha
http://mybikemanuals.com/yamaha/

Yamaha... | Answered on Oct 30, 2019

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