I'm sure someone will correct me if i'm wrong, but i think the smaller hoses around that area are to do with the 'carb heater circuit' which flows warm water around the carbs to avoid 'carb icing' in colder weather.
The pipes are just a bit too narrow for the job and get blocked fairly easily.
That's not saying you haven't got a faulty hose though either?
Go ahead with the rad flush, but i'd definitely leave it circulating in the engine for 2 or 3 days before emptying it out, and maybe take the bike for a good run so that it's pumped around the system a bit harder at warmer temperatures to give it a good cleaning.
Here's a link for parts if need be: http://www.yamahascooterspares.co.uk/spa...ETOR&uID=0
The pipes are just a bit too narrow for the job and get blocked fairly easily.
That's not saying you haven't got a faulty hose though either?
Go ahead with the rad flush, but i'd definitely leave it circulating in the engine for 2 or 3 days before emptying it out, and maybe take the bike for a good run so that it's pumped around the system a bit harder at warmer temperatures to give it a good cleaning.
Here's a link for parts if need be: http://www.yamahascooterspares.co.uk/spa...ETOR&uID=0
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