Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech

Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Contact Overland Solutions for all your custom modifications and setup for overland travel.

LinkBack Thread Tools Display Modes
Old 9 Aug 2004
Registered Users
HUBB regular
Join Date: Aug 2002
Location: Larne, N.Ireland
Posts: 64
Bike stops in the rain

My XTZ 660 has stopped 3 times this year in heavy rain. I have gone over all the wiring connections again and again. They are clean and sound and protected with silicon grease.

The HT side is equally well protected from moisture.

Each time the bike stopped it just cut out suddenly when I rolled off the throttle.

I would be riding along steady at 60,70 mph - NO misfires or any signs of the usual wet weather trouble - then when I approach a corner and close the throttle to change gear the engine just quits and refuses to start again.

I feel that if I had kept the throttle open it wouldn't have stopped, but then I might not have got round the corner !!!

I have to leave it parked by the road but when I return to the bike some hours later it fires up and I can ride home ok.

I know the damp is causing a problem somewhere and there are lots of places to look, but has anyone experienced a symptom like this before, and what caused it ?
Reply With Quote
Old 10 Aug 2004
Grant Johnson's Avatar
HU Founder
Veteran HUBBer
Join Date: Dec 1997
Location: Vancouver BC Canada
Posts: 4,548
I suspect water in the carb. Check the various openings, drain hoses etc. Pull the float bowl and see if there is any water.

The KLR has a problem with sucking water up one of the vent hoses for the carb which causes similar problem. The hose is too low to the road!

Grant Johnson

Seek, and ye shall find.


One world, Two wheels.
Grant Johnson

Seek, and ye shall find.


Inspiring, Informing and Connecting travellers since 1997!
Reply With Quote
Old 11 Aug 2004
Registered Users
HUBB regular
Join Date: Aug 2003
Location: Devon,UK
Posts: 47
Exactly the same used to happen with my XT600E. As soon as I changed the throttle opening the engine cut. It did then splutter once or twice before dying.

With me it was the HT rubber boot that supposedly protects the Spark plug cap. Despite looking fine, being new, covered in grease, nothing would stop the damp getting in. Only in really heavy rain and river crossings.

She usually restarted after 5-10 minutes.

Reply With Quote
Old 17 Aug 2004
Registered Users
HUBB regular
Join Date: Aug 2002
Location: Larne, N.Ireland
Posts: 64
Fella's thanks for your replies.

I got to work on the bike the other day. I stripped off all the bodywork and rigged up a little petrol tank from a washing up bottle.
I was able to run the bike and spray water unto the electrics at the same time. When I sprayed the coil the bike stopped and refused to start, in fact you would just have run the battery flat trying.
I dried off the coil again with a heat gun and it fired up first turn of the engine.
Later I tried it again at night and the arc-ing was clear to see all around the coil and HT lead.
This surprised me because I thought it was pretty well insulated, but obviously not.

Anyway I removed coil, lead and plug cap and wrapped up everything with self amalgamating tape. Not electrical insulating tape but instead the rubbery tape that moulds to itself.

After that it didn't seem to matter how much water I sprayed on it, I could see some very tiny arcs but I couldn't get the bike to stop.

So I hope that's it fixed - at least til' the next time.

Thanks again

Reply With Quote
Old 19 Aug 2004
Registered Users
Veteran HUBBer
Join Date: Aug 2002
Location: Hendrik Ido Ambacht, Holland
Posts: 360
Hi Ralph, congratulations for having found that. But it seems not normal, otherwise all 660's would have the same problem? I suspect there's something wrong either inside your coil or at the connection of the HT lead.
Come over to the meeting in Goirle first weekend of September and we'll all have a look at it!

Fred, XTZ660, Holland.
Fred, XTZ660, Holland.
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


NEW! HU 2015 Motorcycle Adventure Travel Calendar is now available! Get your copy now for some terrific travel inspiration!

HUGE, 11.5 x 16.5 inches, beautifully printed in Germany on top quality stock! Photos are the winning images from over 600 entries in the 9th Annual HU Photo Contest!

Horizons Unlimited 2015 Motorcycle Adventure Travel Calendar.

"The calendar is magnificent!"

"I just wanted to say how much I'm loving the new, larger calendar!"

We share the profit with the winning photographers. YOU could be in the HU Calendar too - enter here!

Next HU Eventscalendar

See all events


HU DVD Autumn Special!

Take 40% off Road Heroes Part 1 until October 31 only!

Road Heroes features tales of adventure, joy and sheer terror by veteran travellers Peter and Kay Forwood (193 countries two-up on a Harley); Dr. Greg Frazier (5 times RTW); Tiffany Coates (RTW solo female); and Rene Cormier (University of Gravel Roads).

The first in an exciting new series, Road Heroes features tales of adventure, joy and sheer terror by veteran travellers."Inspiring and hilarious!"

"I loved watching this DVD!"

"Lots of amazing stories and even more amazing photographs, it's great fun and very inspirational."

"Wonderful entertainment!"

Check it out at the HU Store! Remember to use Coupon Code 'HEROES' on your order when you checkout.

Scottoiler automatic chain oilers. The most important accessory for your next motorcycle adventure!

Renedian Adventures

Renedian Adventures

What others say about HU...

"I just wanted to say thanks for doing this and sharing so much with the rest of us." Dave, USA

"Your website is a mecca of valuable information and the DVD series is informative, entertaining, and inspiring! The new look of the website is very impressive, updated and catchy. Thank you so very much!" Jennifer, Canada

"...Great site. Keep up the good work." Murray and Carmen, Australia

"We just finished a 7 month 22,000+ mile scouting trip from Alaska to the bottom of Chile and I can't tell you how many times we referred to your site for help. From how to adjust your valves, to where to stay in the back country of Peru. Horizons Unlimited was a key player in our success. Motorcycle enthusiasts from around the world are in debt to your services." Alaska Riders

contest pic

10th Annual HU Travellers Photo Contest is on now! This is an opportunity for YOU to show us your best photos and win prizes!

NEW! HU 2014 Adventure Travel T-shirts! are now available in several colors! Be the first kid on your block to have them! New lower prices on synths!

HU 2014 T-shirts now in!

Check out the new Gildan Performance cotton-feel t-shirt - 100% poly, feels like soft cotton!

What turns you on to motorcycle travel?

Global Rescue, WORLDwide evacuation services for EVERYONE

Global Rescue is the premier provider of medical, security and evacuation services worldwide and is the only company that will come to you, wherever you are, and evacuate you to your home hospital of choice. Additionally, Global Rescue places no restrictions on country of citizenship - all nationalities are eligible to sign-up!

New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80 G/S motorcycle.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events (22 this year!); we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, the HUBB or to receive the e-zine. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.

Books & DVDs


All the best travel books and videos listed and often reviewed on HU's famous Books page. Check it out and get great travel books from all over the world.

Motorcycle Express for shipping and insurance!

Motorcycle Express

MC Air Shipping, (uncrated) USA / Canada / Europe and other areas. Be sure to say "Horizons Unlimited" to get your $25 discount on Shipping!
Insurance - see: For foreigners traveling in US and Canada and for Americans and Canadians traveling in other countries, then mail it to MC Express and get your HU $15 discount!

All times are GMT +1. The time now is 18:58.