Speaking from HUGE experience of loosing enthusiasm on cars (mainly 165's...lol) I would say as long as you have another car and the 165 isn't costing you anything, just walk away for a bit and before you know it you'll have light nights and warm weather again. I only work on my car now when I'm in the mood, because I know I'll enjoy it more then. So, every now and then I go out and do a bit. My only problem is TOO many projects at the mo...
165 on the back burner for now
162, just had to take the head off with suspected gasket - turns out I was right

GSXR600 - almost finished now

RM250 - waiting in the wings for some summer fun off roading

New E34 525i Touring that will no doubt end up on 18's and lowered.....lol

Not to mention finishing my drive, building my new workshop and all the other DIY I have on

c r a p lol