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Hi all. What is this fuel pump. I can’t find any information or image of it on the net. This may be all my carburettor issues. I just checked the output pressure at 9.5 psi.
I believe the 1901 only needs 6 psi max ?
Thanks

Could be the Carter P4070. I had this one in my 502 bike for many years and it was perfect. And yes, I would think that 6psi is much better than 9.5psi

502wingman wrote:Could be the Carter P4070. I had this one in my 502 bike for many years and it was perfect. And yes, I would think that 6psi is much better than 9.5psi

Thanks, I took the pump off and found the labe it’s 152-875.Think that’s an old number as summet or Jets don’t list it now so can’t find what pressure it should be. I’ve ordered a regulator see if that helps

knockdolian,
An Airtex E8012S will work, and give you 4 to 7 psi for your 1901.
I have a 1901 and the E8012S on my '01 ZZ4.
Cross reference that number at your local auto parts stores in the UK.
Puff

Thanks puff. I have fitted a regulator now and all seems well.