TCI Box 41R10

[Peder_y2k]

My '88VR is equipped with the 41R11 TCI box, but I also have a spare 41R10 that I picked up somewhere, and can't remember what it fits. Anyone know what bike the 41R10 goes to?

-Pete, in Tacoma WA USA

'88VR

[bongobobny]

Not 100% sure but I think that's the one for an '83 only. It won't work on '84 to '89 as the vacuum sense is 180 degrees out of phase with the others. The bike will start and run with it but the advance curve will give it terrible acceleration...

[Prairiehammer]

The 41R series is for the 1984-1989.

The 26H series is for the 1983 only.

The 3JJ series is for the 1990-1993.

[Peder_y2k]

QUOTE: "The 41R series is for the 1984-1989".

That being said, any 41R series TCI box will work OK for any 1984-1989 Ventures. Correct?

If so, what would account for the difference in the subseries numberS, 41R10, 41R11, etc.?

Inquiring minds want to know..........

-Pete, in Tacoma WA USA

'88VR

[Prairiehammer]

QUOTE: "The 41R series is for the 1984-1989".

That being said, any 41R series TCI box will work OK for any 1984-1989 Ventures. Correct?

If so, what would account for the difference in the subseries numberS, 41R10, 41R11, etc.?

Inquiring minds want to know..........

-Pete, in Tacoma WA USA

'88VR

 

Just the manufacturers way of keeping track of manufacturing runs? I dunno, but any 41Rxx will be what you would use on a 1984-1989.

See this thread where Snaggletooth asked the same question.

http://www.venturerider.org/forum/showthread.php?t=34709

[Snaggletooth]

Yep. I've had my hands on several of the 41R's over the last few years with series numbers all over the place.

 

I have a 41R-09 on hand right now that I bought as NOS still in the package. I've plugged it into eveything from the '83's, which it will run in but with a little lack of power up to an '89 with no problems at all. '84-'89 all work the same.

[Peder_y2k]

Thankyew.....thankyew.........thankyew

Now I have an emergency spare TCI to carry with me for easy swapout. I've relocated the TCI to the top of the air cleaner box making it simple to service.

-Pete, in Tacoma WA USA

'88VR

[bongobobny]

Well, there is actually a very minute difference in the response curve for the '84 and '85, the difference being the 1200 vs the 1300 but prarie hammer is correct, they are interchangeable with virtually no noticeable difference. Thanks for refreshing my memory about the '83 number, it's been a few years, like since '09 since I messed with that stuff! The '90 up is single contact ignition so it's a different animal.

 

You should find the 10's were the 1200 and the 11's were the 1300...

[Goose68]

Could some one please tell me the best way to remove the TCI from its original sight and move to on top pf the air box. Thanks

[Goose68]

Sorry I have an 84 Standard

[dingy]

A few pictures of TCI location on dismantled bikes attached.

 

TCI is under coil bracket.

 

Gary

[bongobobny]

Unfortunately the best way is to remove the fairings, then the battery box and then remove the coil rack to get to the TCI...

[Big Lou]

My Fairing was in piecees and i still played contortionist...

 

Finally

those phillip head screws are a pain, ,they got serious lock tight on them

 

A 1/4 inch drive ratchet with a 1/4 socket and a #2 plillips head driver in it, and i actually went through the battery box hole to do it,,

 

Then looked around at the""""I DIDNT HAVE TO TAKE ALL ThAT OFF"""

 

Just get a good bite on the screws,,,

[Prairiehammer]

Could some one please tell me the best way to remove the TCI from its original sight and move to on top pf the air box. Thanks

 

I removed my TCI fairly easily by first removing the airbox and the plastic baffle over the front head and the "boost sensor". Disconnect the TCI wiring connectors and move them out of the way. Then I used a short handled 3/8" drive ratchet with a 1/4" socket installed on the ratchet and a #3 Phillips screwdriver insert (1" long) taped onto the socket to keep it from falling out. Using a mirror to see where to place the driver bit, I wrenched the screws right out. It is important that one use a #3 Phillips to fit the screw heads.

Removing the boost sensor is not absolutely required but by doing so, I more easily got a straight shot at the TCI screws. I replaced the boost sensor back into it's stock position, but I replaced the Phillips head screws with ordinary hex headed bolts (to facilitate future removal).

 

The only plastic I removed was the lower fairings and the triangular radiator trim pieces.