oak1985 Posted February 5 Member ID: 2,443 Content Count: 7 Reputation: 0 Joined: 02/05/2024 Status: Offline Last Seen: March 13 Share Posted February 5 I just purchased a new HD10. It had about 10 hours on it from being the demo model. When I asked the sales guy if It needed a break in period, he said no. I took it home and ran it for 15-20 minutes including a couple full throttle runs. Now reading the manual I see it calls for a 100 hour break in protocol. What are the odds I messed up the engine? Link to comment Share on other sites More sharing options...
RossO Posted February 5 Member ID: 330 Content Count: 123 Reputation: 30 Joined: 01/28/2020 Status: Offline Last Seen: Friday at 02:27 PM Share Posted February 5 In my opinion these engines are tuned down quite a bit, so, I'd say you are completely fine. Link to comment Share on other sites More sharing options...
Andystoy19 Posted February 5 Member ID: 133 Content Count: 692 Reputation: 151 Joined: 04/24/2019 Status: Offline Last Seen: 6 hours ago Share Posted February 5 A full throttle run is part of the break in as long as you don't stay on it for a minute or two. IMO😉 Link to comment Share on other sites More sharing options...
oak1985 Posted February 5 Member ID: 2,443 Content Count: 7 Reputation: 0 Joined: 02/05/2024 Status: Offline Last Seen: March 13 Author Share Posted February 5 Yeah, basically I hit the throttle a few times to feel out the acceleration/top speed. Probably fine but I'm a bit OCD with my stuff. Can't imagine a few 30 second bursts would hurt anything... Link to comment Share on other sites More sharing options...
oak1985 Posted February 6 Member ID: 2,443 Content Count: 7 Reputation: 0 Joined: 02/05/2024 Status: Offline Last Seen: March 13 Author Share Posted February 6 I'd be curious what percentage of these machines make it through the first 100hrs never going past 3/4 throttle.. and if the outcome changes at all. Link to comment Share on other sites More sharing options...
Andystoy19 Posted February 6 Member ID: 133 Content Count: 692 Reputation: 151 Joined: 04/24/2019 Status: Offline Last Seen: 6 hours ago Share Posted February 6 Not likely, most of the skidoo/can am defenders probably have a bit of a limiter built in for the first few hours that reduces the chance of early damage.🙂 Link to comment Share on other sites More sharing options...
oak1985 Posted February 6 Member ID: 2,443 Content Count: 7 Reputation: 0 Joined: 02/05/2024 Status: Offline Last Seen: March 13 Author Share Posted February 6 Did you notice a change in performance after the first hundred hours? Link to comment Share on other sites More sharing options...
Andystoy19 Posted February 7 Member ID: 133 Content Count: 692 Reputation: 151 Joined: 04/24/2019 Status: Offline Last Seen: 6 hours ago Share Posted February 7 On skidoos mountain machines it was 2 tanks of fuel, on the defender it wasn't noticeable until I did a reflash from MFI.🙂 Link to comment Share on other sites More sharing options...
honda400ex2003 Posted February 12 Member ID: 1,660 Content Count: 146 Reputation: 31 Joined: 07/08/2022 Status: Offline Last Seen: Tuesday at 03:46 PM Share Posted February 12 no changes here after break in, you are fine. drive it how you want to, probably good to do a few high rpm runs and let it build compression in the cylinder. steve Link to comment Share on other sites More sharing options...
Steelslinger Posted February 14 Member ID: 338 Content Count: 265 Reputation: 72 Joined: 02/07/2020 Status: Offline Last Seen: March 5 Share Posted February 14 Never did anything special with it once I bought it. Just drove it. 2000+ miles later, no issues. Did first oil change at 1000 miles, no filings or chunks, fairly clean oil. Link to comment Share on other sites More sharing options...
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