Yamaha TRX850 Enthusiasts Forum

Help!

There is a small (maybe 5mm diameter) pipe that comes off the large diameter coolant pipe that is connected to the upper left hand rear of the radiator.

Does this small pipe connect to anything as it pushes out coolant when I run the bike having let it sat stripped for many months?

I can't see where it would go and the loose end of it doesn't look like it's ever been pushed onto a nipple or anything. This pipe must be around 200-300mm long. Is it some sort of overflow or breather?

There is a carb heater pipe in that area on the upper left ..
It will connect to the rear of the left carburettor..
And as there is the other side to blank off as well at the top right hand side of the cam cover.
The pipe shouldn't be that long if I'm on the right path,...likley someone has just done a bypass of the carb heater system and the pipe in question just goes to the cam cover coolant inlet.

Perfect Alex!

Would never have spotted it.