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mtnsurgtech · #1 03-28-2015, 04:45 PM,

I have put Evans NPG HP in my gl1200 Aspy and according to Evans it is best to run a 4psi cap. I haven't found one that will fit my 85. Anyone have any ideas or opinions on this. What harm will be done by running the standard cap that came with my wing?

**SIR tricky** · #2 03-28-2015, 08:06 PM,

I ran evans for a while with standard cap, ran fine. I think Vic was running evans for a while but not sure if he runs it now.

mtnsurgtech · #3 03-29-2015, 04:13 AM,

Thanks Tricky. Do you know what the psi rating for the standard cap is?

mtnsurgtech · #4 03-29-2015, 08:31 AM,

Hey Tricky why did you stop using it if you don't mind me asking?

**SIR tricky** · #5 03-29-2015, 11:50 AM,

(03-29-2015, 04:13 AM)mtnsurgtech Wrote: Thanks Tricky. Do you know what the psi rating for the standard cap is?

10.7 - 14.9 PSI

(03-29-2015, 08:31 AM)mtnsurgtech Wrote: Hey Tricky why did you stop using it if you don't mind me asking?

I think the cost really considering I change the coolant every two years and not sure I run under conditions requiring Evans coolant.

I used it when I coldnt figure what was overheating the bike, it turned out to be a niggly head gasket.

I use Honda premix now

***admin*** · #6 04-01-2015, 07:53 AM,

(03-28-2015, 04:45 PM)mtnsurgtech Wrote: I have put Evans NPG HP in my gl1200 Aspy and according to Evans it is best to run a 4psi cap. I haven't found one that will fit my 85. Anyone have any ideas or opinions on this. What harm will be done by running the standard cap that came with my wing?

I have been running Evans NPG for several years and I have encountered 0 problems with the cooling system. I have removed the rubber seal to rad gasket and no issues so far.

Roleketu · #7 04-10-2015, 01:28 PM,

I've been running Evan's for four years with OEM radiator cap without any issues.

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