My '89 Johnson 175 HP has a warm up lever that I have never used (only had the boat for 2 months). I can usually get the thing started with 2 or 3 cranks and the thing just idles great (cold start). I was wondering if I should be using the warmup lever instead? I'm I doing harm by not using the lever? What advantages are there to using it. Thanks for your help.<br /><br />Jason