Hello everyone. I'm a new joiner here after obtaining a nice late low mileage Tenere.
Riding back from Norfolk to North Hertfordshire was enjoyable but I noticed a slow-speed, abt 25 - 30 Mph, weave with no input from me.

I've since experimented a little with tyre pressures and the situation does not seem to be improving.

Are these bikes very sensitive to tyre pressures of does anyone know what's going on here?

I've got a few different motorcycles but haven't encountered this effect before.

Any hints most welcome!

Cheers

Ed

Hi,and Welcome.

I assume you have the correct tyre pressures based on weight etc so what kinda condition are the tyres themselves in?..

Biggest difference to my bike,it's an R,in terms of stability was when I changed the perfectly looking original tyres.

Hello & thanks for the reply.

The bike has done less than 3000 miles and has the original "Tourance" rubber. I've tried a few different pressures, (around 29 to 35psi) in a few front/rear combinations but it still feels odd and unstable when going slowly or negotiating slow corners.

The bike is a 2014 registration so, obviously, has been laid up for an extended period somewhere, and not doing anything. There's only a side stand so wherever it was laid, up all the bikes' weight was on those tyres, all of the time. I think I'll get the wheels off of the ground to spin them to check if they're running true, or not....

Welgud, even though the bike has not done many miles you need to check and grease the steering head bearings. There is little or no grease on them from new. I could almost guarantee that lubing this bearing will cure your wallowly steering. I think the best tyres for road use are Trail Attacks by Continental.

If it's been stood on the tyres then I would change them..Im sure you know the profile is damaged with a potential flat spot or two.

I used Avon Trailriders..sure footed and they stick like the proverbial to the blanket

+1 on changing tyres. From memory, the Tourances were often given a negative review and new hoops will always be a good thing, especially as your originals are both old and half worn. Also the grease thing is a good idea.

__________________
I have a lot of growing up to do. I realized that the other day inside my fort.

I had Tourances on my tiger 800 worst tyres I have ever used pulled them off after 5 rides. Would not have thought 3 or 4 psi ether way would cause the front to wobble. Low psi makes it hard to turn as you will know. But at 25 to 30 mph 1 or 2 psi would not cause the wobble. This may sound silly but check the head stock nut is done up right. I had one come lose some years back on a hornet 600. that made that wobble, half a turn and it was sorted. Probably not that but worth checking. As if bearings are not greased right it could loosen the nut a bit when bars have been turned. Just a thought

Thanks for the helpful suggestions guys.

With the help of a friend I managed to get the front end off the ground and, guess what - the handlebars had to be dragged from left to right indicating either lack of lubrication or an over-tightened bearing situation!!!

I've now got to find time to get THAT done, apart from all the other life stuff..

In case I need to replace the taper roller head races, does anyone know the generic bearing number so I can order them up from Simply Bearings beforehand?...
Thanks again everyone.
Ed

That'll be an hour+coffee+laptop looking at Yammy parts sites for you. I'd start at A J Suttons or Wesmoto or M+P

__________________
I have a lot of growing up to do. I realized that the other day inside my fort.

They are for sale on eBay. Just put in xt660 head stock bearings