Thread: breaking in new piston and ring
04-19-2010, 12:21 AM #1
breaking in new piston and ring
hey guys i just bought a new ski. the previous owner had replace a piston and ring on the number 2 cyclinder. he ran about 5 gallons after the replacement before it was sold to me.
what should i do to break this in correctly?
how long (hours or tanks of gas) should the break in be?
should i mix the premix 40:1 or something different?
I think i am supposed to go differnt speeds but not full throttle.
can someone explain the process to me? thanks
04-19-2010, 12:45 AM #2
- Join Date
- Jul 2007
- near Toronto, Canada
What engine, PWC make/model?
04-19-2010, 07:25 AM #3
04-19-2010, 10:06 AM #4
this should probably go into the Yamaha 2-stroke section
04-19-2010, 12:20 PM #5
Your all set Steve, gimme a call when your done riding.
04-20-2010, 07:17 AM #6
Thanks water woody!!
the break in went just perfect- i hope. i ran another 5 gallons at varible throttle positions from 1/4 to 3/4 throttle. i tried to stay out of the mid range. I let it cool down a bunch of times. i put in 93 octane and mixed 40/1 and put in a few more ounces of oil for good measure. everything seemed to work well. thank you for the detailed advise. hopefully next time i head out i can just ride it like i stole it!! thanks again
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