SG Starts in gear - Clutch Safety Switch?

[kboehringer]

Geeeez....

Another thing you'll probably find on the dead duck is different coils.

XS Guys,
The coils on the Dead Duck are not Yamaha. I don't know what they are, but they don't belong on any OEM Yamaha. I knew they were junk I couldn't use. Also, the carbs are Mikuni but they aren't XS either. Carbs are similar in design but definitely NOT XS11 from any year, I knew that when I got the bike.

The '79 motor has it's original vacuum advance mechanism so the PO did not swap the ignition when he swapped in the motor. The bike did not (and does not) run when purchased even though it did have spark. I have not attempted to make it run (yet)?. I don't have enough of the correct parts to make it run (coils, carbs, etc.) so I'm not gonna' steal anything from The Duck to see if it can start. Otherwise I could end up with two that don't run.

GEEEEZ.... I started this thread to find out about the clutch switch and now I've found it's actually an '81, the TCI is wrong for the duck, the motor is a '79 and the Dead Duck is still a POS.

I need to find some positives....

• The SF cylinders should still work on my SG.
• The SF bottom end (short block) should be the same.
• The SF ignition pick-up parts should work on my SG.
• Although not correct, the TCI will probably get me home in a pinch.
• The tank is like new inside with 0 rust - Outside is not hard to fix.
• The alternator looks nice and should work.
• I have two Omron relays, one might work for my headlamp
• The brake disc rotors look nice.
• The chrome cover on the Tach and the fork chrome emblem holder are both much better than mine.
• Ya know you're getting desperate when you look at a chrome tach cover as justification for a purchase....

Also, the local Police Department just left as at my request they did a VIN check and provided a written verification statement that the bike had not been reported as stolen..... It's clear. At least it isn't stolen...

Another day in on the pond with the ducks!

KURT

[motoman]

There is no clutch safety switch on an XS, only XJ's. The XS counts on personal intelligence.

The H model Venturer has a clutch safety switch.

[tomcos67]

Parts bike!!!

Very Good..always bright side.,.,.good luck

[BA80]

The H model Venturer has a clutch safety switch.

That explains the green plug on this SH harness. I was not aware the 81's had the clutch safety switch.

Easily bypassed.

[TopCatGr58]

Hey Kurt,

Don't bother with that 4RO TCI, it will cause way too much cent. adv. timing because it will program Cent. Adv. Timing with the RPM pulses electronically, AND your mech. Cent. Adv. will also provide timing advance, so even though the bike will IDLE with the 81 TCI, it will quickly show that it won't run very well, may even cause preignition or just not get to very much in the rpm band because it will be firing way too soon!! If you want a spare TCI, you can build one for your SG by following the instructions in the tech tips where you can make one out of CAR ignition parts relatively easily and cheaply.

OR you can just find/purchase a 2H7 type TCI from ebay. SELL your 81 TCI to recoup some of your $$ investment. NEXT, look very closely at the dead duck's coils. They might be high output aftermarkets....which could be a good thing vs. old OEM's. And it's simple to bypass the ballast resistor on your bike to use 3.0 ohm coils.

Hopefully you can use the headlight relay from the 81 harness??

T.C.

[crazy steve]

All the H models (H, SH, LH) were supposed to have the 'safety interlock' on the start circuit, although it doesn't seem to have been installed on all of them (some early production didn't get them?). The bike either has to be in neutral or the clutch lever has to be pulled for the starter to operate. Similar to the XJ, except these lack the sidestand switch that the XJ has.

To bypass it, simply connect the two red/white wires at the relay plug together. This relay is a 'special', so using any standard relay won't work unless you install an external diode. A relay with an internal diode won't work.

[dbeardslee]

Another part that could be golden is the turn signal flasher if it's oem and working properly. Do the duck's turn signals self-cancel when you make a turn?

[dbeardslee]

GEEEEZ.... I started this thread to find out about the clutch switch and now I've found it's actually an '81, the TCI is wrong for the duck, the motor is a '79 and the Dead Duck is still a POS.

I need to find some positives....

• The SF cylinders should still work on my SG.
• The SF bottom end (short block) should be the same.
• The SF ignition pick-up parts should work on my SG.
• Although not correct, the TCI will probably get me home in a pinch.
• The tank is like new inside with 0 rust - Outside is not hard to fix.
• The alternator looks nice and should work.
• I have two Omron relays, one might work for my headlamp
• The brake disc rotors look nice.
• The chrome cover on the Tach and the fork chrome emblem holder are both much better than mine.
• Ya know you're getting desperate when you look at a chrome tach cover as justification for a purchase....

KURT

You've probably got a ton of good parts on that thing - fork tubes, triple tree, calipers, rotors, wheels, controls, horns, side covers, Mac 4/2 exhaust, swing arm, shocks, gauges. I'd say you've probably got considerably more than $300 worth of parts.

[kboehringer]

You've probably got a ton of good parts ....I'd say you've probably got considerably more than $300 worth of parts.

dbeardslee,
Yes, the auto cancel signals on The Duck work (90+% of the time). I wish I understood how it is actually supposed to work though? Every once in a while they don't cancel and then again every once in a while they cancel too quickly.



The Dead Duck is not the windfall of extra parts I had hoped for but I won't lose anything on it.

• The gas tank is the best of the three I have. There is absolutely NO RUST inside it and it has not been lined. It had a couple big dents but I've massaged those out of it with a stud welder and a slide hammer. I paid $100 for a very decent tank a few weeks before XSSE and it is a good one.... But this one is MUCH nicer overall.
• The side covers had about 6 coats of paint on them but with a little more work they will be a nice set to match the nice tank.
• The Dead Duck's jugs will allow me to get a big bore kit done without sitting The Duck in pieces while the boring is done at the machine shop.
• If nothing else, the '79 head will provide another handful of shims to add to my shim adjustment kit. I guess it could be back-up head as well.
• The short block will hopefully provide a back-up set of gears if something goes south in the gear box.
• An extra electric starter for a 35+ year old machine is not a bad spare to have.
• I've already swiped the cover for the headlamp, oil, and turn signal indicator over to the duck as it was nicer.
• The engine guards are a little better/stronger design as well and they will be quickly transplanted over to The Duck.

It hurts a little that the ignition module is not a proper back-up for The Duck and the carbs are non-XS junk. But the module might be correct for the next XS11 that I purchase. If not, I'll pass it along to someone here that needs it.

Respectfully,
Kurt

[dbeardslee]

I don't see any busted fins on the head or the jugs on the dead duck either - at least not on the right hand side. So that's good too. You've got a lot of good stuff there.

2H7 TCI's are pretty easy to find, and frankly, they don't usually give you trouble. It's one of the more trustworthy parts on an XS, IMHO.

[motoman]

dbeardslee,
Yes, the auto cancel signals on The Duck work (90+% of the time). I wish I understood how it is actually supposed to work though? Every once in a while they don't cancel and then again every once in a while they cancel too quickly.



The Dead Duck is not the windfall of extra parts I had hoped for but I won't lose anything on it.

• The gas tank is the best of the three I have. There is absolutely NO RUST inside it and it has not been lined. It had a couple big dents but I've massaged those out of it with a stud welder and a slide hammer. I paid $100 for a very decent tank a few weeks before XSSE and it is a good one.... But this one is MUCH nicer overall.
• The side covers had about 6 coats of paint on them but with a little more work they will be a nice set to match the nice tank.
• The Dead Duck's jugs will allow me to get a big bore kit done without sitting The Duck in pieces while the boring is done at the machine shop.
• If nothing else, the '79 head will provide another handful of shims to add to my shim adjustment kit. I guess it could be back-up head as well.
• The short block will hopefully provide a back-up set of gears if something goes south in the gear box.
• An extra electric starter for a 35+ year old machine is not a bad spare to have.
• I've already swiped the cover for the headlamp, oil, and turn signal indicator over to the duck as it was nicer.
• The engine guards are a little better/stronger design as well and they will be quickly transplanted over to The Duck.

It hurts a little that the ignition module is not a proper back-up for The Duck and the carbs are non-XS junk. But the module might be correct for the next XS11 that I purchase. If not, I'll pass it along to someone here that needs it.

Respectfully,
Kurt

Poor connections, grounds or both would be the self-canceler issue being intermitant shut-off.

[dbeardslee]

There's also a reed switch in the speedo that's supposed to count the distance to shut off the flasher. A bad connection or a weak magnet at the switch can cause it to work intermittently, so maybe the dead duck's gauges will work better.