HEADLIGHT ISSUES & Side Markers

[Cowboy0629]

Hi ALL

 

Just bought my second bike 86 Yamaha Venture 1300 XVZ

my first was a 92 HONDA MAGNA V45 just a little too small for a person of 6'3" LOL

 

Anyways on to my venture problem I have no HIGH LOW BEAM and need to take for its safety check light only has one beem I can't get the pictures to upload so I gave links to pictures on my drop box..

 

someone has hacked the harness really bad and was wondering if someone can help me fix it the bulb is good

 

pin out on connecter

 

DRIVE GND

PASS

 

PIC 1 : https://www.dropbox.com/s/ee9c67c4zidnawk/20160614_203123.jpg?dl=0

PIC 2 : https://www.dropbox.com/s/2jyb04qle729i9h/20160614_203103.jpg?dl=0

 

Also the 2 front marker lights have signal lights but no Running Light

 

thanks in advance

Mike Dennison

[Flyinfool]

This may take some work to unhack the wire harness.

I would start by going to the 1st gen library and downloading and printing the wiring diagram for your bike.

We can then take some educated guesses as to what the PO may have done. My first guess is that he took out the RLU (Reserve Lighting Unit) he may have even cut out and bypassed the Hi/Lo switch.

 

But we will get you thru this.

[Cowboy0629]

Ok.. thanks.. wiring issues have always been my problem area.. but I do know it is not to be like this.. I also round when I took the tank cover off that the PO had wrapped all the fuses with tin foil... tomorrow I am going to be working on upgrading the fuse panel to regular fuses and the headlight issue.. even through I do not really know where to start even looking at the wiring diagram for the bike

 

The headlight does seem to switch but need to put switch about 3 qtrs of the way to high postion..

[Flyinfool]

If the headlight does actually switch then the wire butcher does have it all hooked up. You might just have dirty contacts in the Hi/Lo switch on the handlebar. I have to take that switch apart and clean it every other year when mine stops switching.

 

Fuses wrapped in foil????

And I thought the pics you posted were bad..................

[KIC]

What may have caused the PO to start the wiring chop is actually a pretty easy fix that I have seen overlooked and the wiring chopping begins. The PO of my 87 did the same thing.

 

The easy fix is that the starter button gets dirty and does not return all the way out when used. This causes the light not to come on. If you pull the switch/button all the way out (like a 1/16 of an inch) the light will come on. Cleaning the switch repairs the problem.

 

Instead, people start hacking and bypassing the switch to get the light to work.

 

Just keep this in mind when you start fixing the wiring problem and the light starts giving you fits.

 

Good luck and welcome to the mental farm. We grow mental issues here...

[Cowboy0629]

Hi All

Thanks for all the Help.. I spent the day Soldering and fixing and testing wires.. I know have the headlight issues and marker lights all fixed and also upgraded the fuse box to ATO fuses.. Not too sure why Previous Owner had glass fuses wrapped in foil I tested them and found that they where good... But needless I had to fix the problem because Myself I don't like fire between my legs and over a battery and gas tank... anyhow... I know have the headlight working properly and switching and both marker lights are working correctly now.. Hey whats a day of work on wires LOL... I am left with 2 mystery connectors in behind the headlight..

 

https://www.dropbox.com/s/6f9gi2jxadb2t3j/20160615_193447.jpg?dl=0

 

This Picture above link shows connector one... 3 wire Black/White Dashes ---> Red/Black Stripe ---> Red/White Dashes

The RED/Black Stripe was connected to the Headlight wireing.. I found it had constant power when key was on

Not sure what this wire is really for and where it connects

 

https://www.dropbox.com/s/ptm1qn295mwcyw1/20160615_193547.jpg?dl=0

 

This is 2 Prong Connector.. Blue/White Stripe --> Black/Yellow Stripe

Not Sure where this Connector goes either... but PO has a wire jumping two terminals together when I unhook connector it seems to be something to do with dash and computer in dash

 

Last problem I found I am having...

Computer Screen.. when in

1st Gear the display shows it is in 3rd gear Fuel Full

N ---> Display is Blank --> No Gear showing Fuel Emty No other display funtions showing

2 ---> Display Back on Fuel etc No Gear showing in display

3 ---> Display Works Again No Gear Showing Fuel Showing

All Other Gears Display Works No Gears Showing Fuel Showing But in All gears Fuel Showing FULL TANK Display seems to do system checks when ever gear is switched except for in 2nd

 

Thanks Again for All the Help

Mike Dennison

[Flyinfool]

The first connector you pictured I can not find on the wiring diagram, Without more info I have no idea what it is.

 

The second one that might be a blue yellow and a black yellow in which case it could be two of the four wires that go to the clutch switch and is the starter circuit cutoff relay. Some one may have had issues with that and bypassed it. Again that switch is known to get dirty contacts. If it is bypassed then it means that you can now start the bike in gear or take off with the side stand down. Both potentially very dangerous.

 

The computer acting weird could be an issue with the gear selector switch, there is a 6 pin connector between the switch and the computer, make sure all of the contacts are clean and you can test the switch with an ohm meter. one lead to ground and the other to each of the 6 wires. when the switch is in the position for the wire being tested ot should be near zero ohms, all the other wires should be infinite.

[Cowboy0629]

Hi ALL

 

I Cleaned Start Switch which was really gunked up.. and got the one contact that is on a spring moving again.. it was sort of melted into the plastic.. But everything seems to be working in that department now and the starter seems to be turning over allot better then before.. computer display still doing the same things as before so I am not actually sure if it is working properly or not.. I did I will get a picture or short video of what it is doing tomorrow to show this better... But since I cleaned switch... I went and filled the bike up with premium fuel and now.. I get about 4 blocks and the bike quits kinda gradually dies with less power and less power until it stalls out then it just turns over and over does not seem to be firing.. wait a few minutes tray again and it starts and runs a few more blocks... Im not sure what the problem is because I did 150 miles today which about 130 miles switch would not start the bike had to jump the siloniod .. so I decided to take it apart switch as told above which fixed this problem start problem and light much brighter.. now I have run a few blocks and it dies...

[bongobobny]

Hmmm, all sorts of possible causes for it dieing. Could be carbs, fuel filter, fuel lines, could be thermal issue with ignition system, one of the most common being the pickup coils going bad when hot but even that is not that common. How new are the plugs?? Have you inspected the coil secondaries for corrosion and green stuff on the output? When you remove the coil wires cut about 1/4 inch off the end to insure a good connection for the prong on the connector to penetrate the conductive core of the wire, and make sure the rubber o ring is on the plug wire to prevent the wire from vibrating loose.

 

I would try a strong dose of Seafoam in the gas tank, like 1 can to a full tank of gas and then drive it like ya stole it! Also add some dry gas in case you have moisture in the tank. Wouldn't hurt to drain the carb float bowls and see what kind of crud you may have in your fuel system. I would consider replacing the fuel filter as a "Must do" regardless anyway...

[Flyinfool]

Running a few blocks and then slowly dying out sounds like a fuel starvation issue. as in does it sound like it is running out of gas? Although it is not common to a 1st gen, check the tank vent to be sure it is not plugged, there are some insects that seem to love crawling up that vent tube to build a nest. If the tube is plugged or restricted then there will be a vacuum in the tank that will not allow fuel out. easy test is try a ride with the gas cap off. But be careful that you do not splash gas out of the tank onto a hot engine.

[Cowboy0629]

I went riding today and never had a issue with running problems .. Computer still not working properly I think bottom 4 display boxes are lit all times... when I adjusted the shift lever and it seems to be display proper gears when that part is working.... fuel is either always full or 1 bar.. PO tells me I should get 250 miles per tank? not sure if this is true.. he also told me allot of things that have not seem to be true LOL.. but anyways... I have put 1/3 bottle of seafoam in already but I will put full bottle in now.. PO told me that he just had carbs rebuild and synced but I don't trust him anymore.. across the road nieghbour or not.. considering I traded a Boat motor and trailer for it that had not running issues or wiring issues LOL anyways Hopefully everyone here can get me thru it but I think I am getting most things fixed day by day.. still not sure what cause it to stall out.. yesterday.. but yes it was like water or something in fuel

 

Thanks Again for all the Help everyone and Please have a safe weekend of riding,

Mike Dennison

[Flyinfool]

you have a 4 gallon tank plus a 1 gallon reserve. at 40 mpg you will get 160 miles and hit the reserve.

you aint gonna git no 250 miles out of a tank.

[bongobobny]

Yah! 250 is a bit of a stretch! I could get just a tad over 200 miles out of a tank. As Jeff stated the norm for these bikes is 40 mpg, a little more if you are a very conservative lightweight single driver, a little less if you have an aggressive right wrist, tow a trailer two up, etc. Actually your total fuel capacity is slightly over 5 gallons, closer to 5 1/2 than 5 depending on just how full you fill it. There is some kind of carb modification you can do, forgot what it was, something to do with the jets or something, that got you a couple three more mpg but even with that no way would you get 250 miles out of a tank unless the entire trip was downhill with a tail wind...

[Cowboy0629]

Hi All so I did a big rid today with my Venture and my father for fathers day and some friends 400 miles total... bike ran great today the odd backfire but I am now thinking this is fuel related put some 94 super gas in it and the backfire seem to go away until the next fuel up at next fuel station where they only had regular.. backfire came back.... but is is not happening as much.. I found it seems to only backfire when letting off the throttle or slowing down...

 

My Major Concern from this trip is... High speeds vibration in front end.. enough to chatter teeth and be uncomfortable in turns at highway speeds 60mph 100km/h .. also has shimmy if you let go of steering a little bit it will start shaking back and forth.. I did read that one thread on bike swimming..

 

Could this vibration be from wheel bearing... my forks where just done by professionals seals and bushings..

[camos]

Hi All so I did a big rid today with my Venture and my father for fathers day and some friends 400 miles total... bike ran great today the odd backfire but I am now thinking this is fuel related put some 94 super gas in it and the backfire seem to go away until the next fuel up at next fuel station where they only had regular.. backfire came back.... but is is not happening as much.. I found it seems to only backfire when letting off the throttle or slowing down...

That tells me there is a lean condition that causes the backfire. Apparently solving the condition by using higher octane fuel actually confirms the problem since higher octane is harder to ignite and will reduce pre-ignition due to improper fuel mixture. Seafoam may eventually clear out the carbs, it usually takes more than one tankful to clean up dirty carbs. There is also the possibility of air leaks in the carb hoses that will create a lean condition. Syncing the carbs might be a good idea as well if a previous sync was done on a dirty carb.

 

My Major Concern from this trip is... High speeds vibration in front end.. enough to chatter teeth and be uncomfortable in turns at highway speeds 60mph 100km/h .. also has shimmy if you let go of steering a little bit it will start shaking back and forth.. I did read that one thread on bike swimming..

 

Could this vibration be from wheel bearing... my forks where just done by professionals seals and bushings..

Check the balance of the front tire.

 

Perhaps when the seals were done the forks were not reassembled correctly.

 

Loosen to snug:

the fender

front wheel and axle

fork brace

upper and lower triple tree clamps

 

Raise bike.

Spin wheel as fast as possible then clamp the brakes on.

Lower bike and exercise forks a couple of times.

Re-tighten everything.

 

Check the play in the head bearing. It should be able to be pushed from lock to lock with ease and bounce once. Any more than once and it is too loose. No bounce at all means it is too tight.

[bongobobny]

Yup!! Also check exhaust gaskets for leaks, that will also cause backfire on decel...