WH252-H 4 #1 Posted April 24, 2012 The question has probably been ask before but I couldn't find it by search. I use an INNOVA model 3568 and it works on most single cylinder, 4 stroke engines but not all. I have to give it a 6 out of 10 for tractor use but a 9.5 for auto. Whats your favorite and why? Share this post Link to post Share on other sites
WH252-H 4 #2 Posted April 24, 2012 I have to adjust my rating. I just tried to use my light and it's not working. I searched it on the web for repairs and turns out many people have problems with the light malfunctioning within 18 months. So I guess I rate this a 3 out of 10. Share this post Link to post Share on other sites