Tempest

Methinks there's a dam curse on me and Firestorms.

Just yesterday I fitted a new Yamaha R1 Regulator as the old one was burned out and was making my battery die.

Well, I fitted the above item, all working fine.

So (as the sun's out) got on my bike for a ride, all ready to go, clutch in, clicked into gear. Engine Cut''s out!

Ehhhh?

check side stand (I have fallen foul of that before) Yes, it's up, ok, try again, Engine starts, clutch in, click into gear. Engine Cuts Out.

Oh for ***'s sake !!!!

Then noticed, the yellow light for the stand down was not coming on (odd, it used to - 4 days ago, the last time I rode the bike)

Looked under the seat at that stupid plastic thing with all the connectors inside it. (seems oily, dunno why) so pulled ALL the connectors apart and wobbled them (keeping an eye on the yellow light)

Nope, nothing.

So took the swivel switch off the stand, and twisted it around and pressed it in a bit, ah-ha, the light came on, but a very iffy, not very positive on.

Thought, may be some crap in the swivel so gave it a good cleaning with engine cleaner and got all the grease and grit and stuff off, it, turning it around many times, and it got better.

Fitted back on bike, and seems ok (ish)

When the bike is upright the switch/dashboard yellow light works fine.
As you lean the bike onto the stand (and the stand kinda moves sideways as the weight of the bike goes onto it) the yellow light goes off.

Ok, I thought, not perfect, but works on, when the bikes upright.

Biking gear back on, started up 1st try, clutch in, into gear. Engine Cuts Out!!!

Arghhhhhh

I feel like Basil Faulty and going and getting a branch and giving it a dam good thrashing!

Now, I've not actually touched ANYTHING over the last few days, when fitting the regulator, apart from just moving some wires about (in that cluster of connectors directly behind the seat)

I know there's a switch on the clutch level, but I've been no where near that.

As I was straining the battery (when the regulator was shot) I'm just wondering is some fuse has blown, or somethings kicked out, or come loose.

Any ideas what I should check out 1st?

Or could it all be down to that rotating swtich on the side stand?

But, is the light is OFF that means the bike should think the stand is UP so if anything it should allow me to ride with the stand down if there was any thought.

So I'm buggered AGAIN!!!!

Pray this is the last thing to sort.

Help

Tempest

Or to put in in just 1 line (without all the hair pulling out anger!)

What is lighty to be at fault (and what can I check) if the engine cuts out as soon as I put the bike into gear?

Fuses, Connectors, Switches?

Thanks.

andrewlc77

it is a ground problem....i havent had this prob on a bike but i did on my quad a few months back......go back and check all the wiring that you did and im sure thats the culprit

Tempest

Cheers for the advice.

to be honest, the only "actual" wiring i did was to unplug the spade connectors off the old burnt out Honda Regulator, and plug fresh spade connectors onto the Yamaha R1 Regulator.

Actually, exactly the same as that on-line guide here:
http://www.vlc.com.au/~justin/about/...g_replace.html

Mine looks pretty much identical to his photo's

I may have moved some wires as I was cleaning and checking stuff, but did not disconnect anything else.

I know it's just tracing the fault that's the issue.
I need to rule some things out.

Hawkrider

Sounds like a bad sidestand switch.

35700-MBB-305 SWITCH, SIDE STAND List: 37.35 ServiceHonda.com: 27.32

This, of course, is in the USA and in USD. I can't help you with good deals in the UK. You're on your own there, mate.

Tempest

Thanks, well, yes, there is obviously something not 100% right with the sidestand switch. (as it was a bit tempremental to get working)

No idea why it "Just" decided to go tempremental, but hey, just one of those things.

I would like to bypass the switch to prove it is actually this round switch that is at fault.
Perhaps jumping it under the seat, by shorting the connection it makes when the stand is normally up.

The bike is working perfect, ticking over and revving etc etc. So there's noting REALLY wrong.

It's just something that's killing the enging (electrics) as soon as it's physically put into gear.

So, does anyone know how I jump/bypass this stand/safety switch?
Must be easy...... yes?

Tempest

Looking at this diagram:



If I just connect the two wires (circled in RED) then that should bypass the Stand Switch.... Yes?

Or just connect the Green/White wire on the Ignition Control Module to Earth (bike frame) then it would be the same thing. As the bike would then think the stand is up all the time.

Anyone Agree

Hawkrider

Yup, that'll do it, but did you double check that ground coming off the side stand switch? Also, check the battery connections. I've seen some really strange **** happen because one was loose (ie, the bike started and ran fine but the FI light kept coming on [RC51]).

Tempest

Again, thanks for the posting.

Battery Terminals are both lovely and tight for sure.

I've not checked anything electrical (with a meter) as yet, as I had to rush out after I found the bike was messing about unexpectidly.

I just need to work out which block of connectors (under the seat/behind the fuel tank) is the one that the side stand switch connects too.

From memory (as it's almost midnight here now) there were White, Black and Green square connector blocks in that bundle and also a round block with a couple of bullet connecters)

My manual only shows a black/white photo, so unsure which it is.

BeerHunter