View Full Version : Run Period 4 Stroke

07-12-2001, 07:58 AM
Picking up a new rig this weekend ;D ;D fitted up with a 50hp Yamaha 4 stroke. First 4 stroke for me and after some advice on run in period etc.

Thanks in advance.


08-12-2001, 03:45 PM
I've got a yam 25/4. Dealer advised 10 hours running in.

Lots of going up/down the rev range, no steady full throttle running.

I just went sight-seeing in my local river for a couple of days !!


09-12-2001, 01:11 PM
Just remember though that you won't get accurate usage results until after the initial 50 hours. The motor will have loosend right up by then.

11-12-2001, 04:04 AM
Thanks Walrus. Went for a cruise up the brissy river and put a couple of hours on it. Amazed at the moserly fuel consumption. :o :o
Should get better as Flat-Chat said, once it loosens up - happy days. ;D ;D
If you see a 455 Hornet on the water, maroon stripes and worded "Jack Lives Here Too", make sure you say gidday.


12-09-2006, 05:25 PM
Anyone know about how much$$$ the first service costs for a 50HP.