2 replies to this topic

[YIANO]

Second facet pump dies after leaking oil for a while then leaking small amount of petrol during running.
Need to replace this as503 unit.
Isn't this comp spec pump a little overkill on the carbed r1 engine?
I thought the own yammy pump was lower pressure?
What pump are others using with this engine and do people use a pressure regulator with carbs?

[miniblade81]

Second facet pump dies after leaking oil for a while then leaking small amount of petrol during running.
Need to replace this as503 unit.
Isn't this comp spec pump a little overkill on the carbed r1 engine?
I thought the own yammy pump was lower pressure?
What pump are others using with this engine and do people use a pressure regulator with carbs?

p would say you got to regulate fuel pressure why not use r1 one

[R1mini]

I have a very low mileage R1 pump assembly in excellent condition £50 plus delivery if required

Cheers
David