Question about Yamaha XJ 700 X Maxim Motorcycles

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Yamaha xj 750 1986 problems with engine racing up in revs with no control.

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Hi, Anonymous and the usual suspects are:
1. Extremely lean fuel mixture.
2. Dirt, rust, water, or ethanol sludge in the fuel system.
3. Sticky throttle cables.
4. Multiple carburetors not in synchronization.
5. TPS sensor out of adjustment or faulty.
6. Wrong spark plugs for the type of service.
7. Throttle bodies not in synchronization (FI)
8. Faulty O2 sensor.
9. Clogged, stuck, or faulty IAC valve.
10. Aftermarket components not compatible with ECM.
For more information about your issue and valuable "FREE" downloads that you will need please click on the websites below. Good luck and have a nice day.
The Information Overload Hour
Why is 82 Yamaha Seca XJ750 occasionally revving high at idle then going...
Yamaha XJ750 Owner Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-xj-owners-manuals

Posted on Jan 28, 2017

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: valve clerance for yamaha xj 650,what is the clerance of exhuse and intake?

xj650(uk) and xj650j
inlet 0.16 - 0.20mm
exhaust 0.16 - 0.20

all other models
inlet 0.11 - 0.15mm
exhaust 0.16 - 0.20mm
set when cold

Posted on Feb 01, 2009

  • 3567 Answers

SOURCE: 94 yamaha xj 600 wont rev over 6000 rpm

You bike is running rich on the main jet. Go down on the main jet size. Alternate to that, move the jet needle clip up one notch.

Go to the site below and you can download a free PDF service manual and parts manual for your bike. The service manual is 45th from the bottom of the Yamaha listings and the parts manual is 19th from the top. Now you can tune the carb and adjust the timing chain slack and a whole lot more. It saves my keystroke finger a lot of work also.

Please rate this solution. Thanks glouellette!

Posted on Apr 21, 2009

pugwash814
  • 377 Answers

SOURCE: can i fit a xj 900 engine into my xj650 maxim

i belive it is a straight swap, but there are some points to watch for, here is a discussion on just that...

http://xjbikes.com/Forums/viewtopic/p=22001.html

Posted on Jan 23, 2010

Testimonial: "Great, good lead very helpful.give me the solution."

SOURCE: 1982 yamaha xj 650, complete engine tune up

plz visit this site www.xjbikes.com

Posted on Feb 28, 2010

  • 1 Answer

SOURCE: How to hand crank a yamaha maxim

Put it on the center stand. Note that the rear wheel is now about two inches off the ground. Put it in gear - higher gears work best - and turn the back wheel. Voila!

Posted on Jul 19, 2013

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Hi, Anonymous not sure that's even possible for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Many things can cause it to rev up. Here are a few suggestions
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I have a 1982 yamaha maxim 650when i try to go over 65 it feels like its revs strange like its going to vibrate but it dosent


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These engines tend to resonate right around 4.5k-5k rpm. Originally they came equipped with rubber bushings between the engine cooling fins to absorb the vibration, but at this age, they are probably long gone.

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My yamaha maxim xj700 revs itself upto 4k rpm and sticks there, what could cause that? sent me through an intersection yesterday when i let the clutch out a little, so its time to ask 4 help.


assuming your throttle cable is well lubed, and not sticking, sometimes if cable not routed correctly, slight turn of handlebars will rev up engine. first step make sure all is well with carb cable, the we wil go further if that is all well

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You need to replace your floats in carbs, problem solved

Apr 25, 2009 | 1981 Yamaha XJ 650

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I wanted to know how to turn down the idle on my 1981 XJ 650 Maxim. Every time I come to a stop in first gear the engine races. At first I thought it was the choke. I don't know anything about motorcycle...


hello
if you were to look upward under the carbs, about center between the middle two carbs you should notice a screw with a larger head on it. this is the idle adjusting screw. hope this helps.

Mar 26, 2009 | 1981 Yamaha XJ 650

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