Main Motorcycle: Tigger of course (2004)
Join Date: May 2004
Location: South of Glasgow, north of hell
A relatively common problem on the 955 Tiggers that gave exactly the same symptoms was down to the Thermostatic valve on the cap not functioning properly & the cooling system not pressurising properly I went through a couple of Trimph caps before fitting a similarly rated Auto cap (from nissan if I recall). the caps would last a year or so then die. Since I replaced the cap last time I have had 4 years without grief. The cap was nearly half the price of the Triumph one as well. I am not familiar with what is fitted in the 800s but I would check if the cap is working (or leaking) simple test for whether the valve is working is to dunk the cap in a pan of water & bring to the boil. watch what is happening & if the water gets to boiling point without operating then replace it.
If you can't be kind, at least have the decency to be vague.
Last edited by bigD; 11-05-2012 at 08:18 AM.
Reason: cr*p spelling