KwS 2425 Report post Posted January 28, 2019 Hi I have an issue with my starter motor on my S50B30 and need some ideas. Basically, it's not engaging first time. Turn the key and the starter will whirr into life, but won't engage the flywheel until you release the key (and obviously it doesn't turn over or start because you released the key but you can hear it engage). Turn the key again and it'll start happily. Is this an issue anyone has had before here? Searching didn't give much help, and S50 starters are expensive and rare here so reluctant to just replace it. If I do have to replace it, does an M50 or M52 starter fit and work? Quote Share this post Link to post Share on other sites