1986 Venture No Spark tho the rear cylinders

[valic007]

well guys my names Bob im new to the forums im and new owner of a 1986 Venture i picked up for 800 dollars its in really nice shape and it ran well for 1 day lol talk about a let down so heres how it started i started it and it was running way rich and when i went to pull out it kept stalling so i checked spark and im not getting spark to the rear 2 cylinders ive seen alot on here about the TCI box and how there at fault for most spark issues and im wondering if its the same problem for me if i know people move them to the top of the airbox but i dont even know where to find the TCI box to move it up and maybe hope that all it needs is to dry out any help would be great thanks all

[friesman]

There is an issue with the wires getting corroded in the cap of the coil. maybe ensure the wires are tight and that the wires are connected and clean. If the wires are old try some new ones, they arent that expensive, especially compared to trying to find a TCI.

 

Brian

[Trader]

Did you wash it?

I know mine is allergic to water!

 

if so...try WD40

[valic007]

nope i didnt wash it but ill look at the wires and make sure there clean and get back to ya thanks

[mrich12000]

With the engine off tke an old spark plug and ground it to the engine. Turn on the engine ,observe the spark or lack of spark do it to both cylenders .. Go from there .

[bongobobny]

There is a connector coming from the pickup coils about halfway up the frame that can cause you to loose one set of timing marks from the PU coil. Clean and reconnect, or better still hard wire that puppy. It gives a symptom of 2 cylinders not firing...

[Guest Swifty]

There is a connector coming from the pickup coils about halfway up the frame that can cause you to loose one set of timing marks from the PU coil. Clean and reconnect, or better still hard wire that puppy. It gives a symptom of 2 cylinders not firing...

connector? halfway up the frame?

HUH?

[mrich12000]

Left side mid bar White connector do what he said but do the spark test as well

could also be holes in the rear slide diaphrams.. Need pictures!!!!!!!!!!!!!!

[bkuhr]

i dont even know where to find the TCI box to move it up and maybe hope that all it needs is to dry out any help would be great thanks all

 

Under and forward of the battery box is the tray the coils are on, bolted to the bottom of this tray is the TCI box, with connector facing where the battery box was. Very very difficult to get off with fairings on, but possible.

[valic007]

looks like its the TCI looks burnt and when i was holding it that corner just broke it was so brittle

http://www.facebook.com/album.php?aid=31669&id=100000042357320&saved

http://www.facebook.com/album.php?aid=31669&id=100000042357320&saved#%21/photo.php?pid=507779&id=100000042357320&ref=fbx_album

http://www.facebook.com/album.php?aid=31669&id=100000042357320&saved#%21/photo.php?pid=507779&id=100000042357320&ref=fbx_album

Edited September 20, 2010 by valic007

[friesman]

Ur right, it does look cooked to me too, I know the tci's are getting hard to find, so i do wish you luck in finding a good deal on an oem one.

 

there is a thread in here where some guys ordered new replacements from Ignitech, a Czech company. they are a generic module, but some of the guys have had good luck with their custom programming.

 

http://venturerider.org/forum/showthread.php?t=40414&highlight=replacement+tci

 

brian

[mrich12000]

:fingers-crossed-emoOh boy that power transistor looks pooched. Like Brian said, you need a replacement There is one on Ebay, go to Pinwallparts they have three or more with your bike spec. Hope this helped , Cheers Mike R.. Calgary..

[mrich12000]

Hi, I found one for you Eboy, here is the url..

 

 

http://cgi.ebay.ca/Yamaha-XVZ-12-13-Venture-Royale-Ignition-Unit-/290462632296?pt=Motorcycles_Parts_Accessories&hash=item43a0ec0968

 

hope this helps, Mike R. Calgary..

 

http://cgi.ebay.ca/86-93-YAMAHA-VENTURE-ROYALE-CONTROL-UNIT-1NL-85830-00-0-/200509101173?pt=Motorcycles_Parts_Accessories&hash=item2eaf461475

 

Foud more for you. Enjoy...

Edited September 20, 2010 by mrich12000
more Eflea parts

[friesman]

here is an 86 CDI box on ebay 190435246092

 

you will hafta watch what you buy, some descriptions arent very good, some cruise control boxes have a similar description.

 

Brian

[mrich12000]

Good point Brian, Hey how's your Eye? See ya Mike mabey next year with Paul..

[valic007]

i won that CDI box for 75 and 10 shipping but i come to find out mines an 87 not 86 but it looks like all the parts are the same can you use 86 parts on an 87

 

here is an 86 CDI box on ebay 190435246092

 

you will hafta watch what you buy, some descriptions arent very good, some cruise control boxes have a similar description.

 

Brian

[mrich12000]

super hope it works:fatsmiley:

[friesman]

i won that CDI box for 75 and 10 shipping but i come to find out mines an 87 not 86 but it looks like all the parts are the same can you use 86 parts on an 87

 

 

I am failry sure 86 and 87 would be same but not exactly 100 % sure. Maybe have a look at partshark.com in their fiche section and see if part numbers match between the years.

 

Brian

[dingy]

i won that CDI box for 75 and 10 shipping but i come to find out mines an 87 not 86 but it looks like all the parts are the same can you use 86 parts on an 87

 

 

You can use any TCI from 84 to 89 interchangeably.

 

They may have different part #'s, but they are essentially identical.

 

Gary

[valic007]

thanks for all the help guys i cant wait to get this thing going georgeS has been helping me a ton as well i hope to be able to return the favor someday

[valic007]

Got my tci box today plunged It Into be sure it works cause only have 7 days to return it and the bike fires right upbut smokesand real high idle with some popping sending like backfires any idea thanks bob

[mrich12000]

Let it run sound like the rear cyls are clearing out.. need pictures!!!

[Dano]

You need to synch the carbs too