Dear friends,

Sorry for my poor Englisch (í'm a Dutch BSA and Triumph rider) but i have a question; my speedtwin loses oilpresurre when hot. If i start her the presurre rises up to 60/70 psi before the relaese valve start working. When hot during driving the presurre is about 15-20 psi. At idling speed it almost drops till 0 psi. The engine sounds well and runs beautifull; a first kick starter. I have fitted a new plunjerpump and a releasevalve from SRM engineering. I use SEA 40 in the summer. Is this normal??

Kind regards,
Jacques Ruijssenaars

Hi...I have the same problem with a 1969 bsa. I changed from
40 to 50 wt oil with some reduced oil loss. I am getting a
small oil leak around my head gasket. I am comfident the
gasket was installed correctly.
Any ideas about stopping my leak.
Thanks