Break-in Period / Two Stroke Motor

[PCTREE]

just wondering what you folks would expect for break in time of a 2 stroke motor, and when they are brand new how much less power do they produce??

 

[SkwerI]

Very little on the smaller two strokes today. I bought another 200T a few weeks ago and I was pushing it hard on a big removal on it's second tank of fuel. The rings seated and I had to readjust the carb after about 4-5 tanks. I have a blower and pole pruner that never really needed any readjustment even after 15+ tanks of fuel.

The title of this thread spooked me, at first I thought you had been robbed last night.

 

[PCTREE]

dont even think that Brian! I worry about my shop as I cannt see it from my house and it has a lot of valuable gear in it

 

[Cobleskill]

Rig up a horn systym for your shop. It would be a cheap insurance policy and give you some peace of mind.

 

[Al Smith]

Have a big dog with a foul temper reside in your shop or get a beagle. A beagle will bark at anything and only bite ankles . A peacock works too .The thing will roost on the roof, get real loud and doesn't bite anything .

 

[18 stoner]

Id say expect it upto full power after anywere between 10 and 30 tanks (depending how hard you run it), but the carb will need settling before as the others said.

As for the security, try some geese in a pen surrounding the garage.

Even the hardest of crims would run scared from 20 angry ganders

 

[woodworkingboy]

It seems hard to much notice when a saw has gone through "break in", and reaches full power, the transition is gradual. I guess that a compression tester might give definitive results, when the compression stops going up, the rings have seated. I never have used mine for that purpose, but if I did, I might run a somewhat richer oil mix until that happened.

All I do now is go easy on the rpms a bit, until having gone through a number of tanks of gas, which also means not loaning the saw out during that period as well.

 

[gf beranek]

Never seen break-in instructions for a two-cycle.

 

[stehansen]

Run 'em like you stole 'em.

 

[brendonv]

Agreed.

I've seen a fair share of 4 stroke motocross bikes not run through the RPM range during break in. They smoked the rest of their lives.

With my 2 stroke after I did top ends, I would run them through the whole RPM range, cool, repeat, eventually just running it like ya stole it.

 

[gf beranek]

So there is a BIP for two-strokes?

 

[Reddog]

We always heat cycled them a few times.
Start, let idle a few minutes, run wide open for about 45 seconds, shut it off and let it cool till cold to the touch.
Do that 4-5 times, then run it like you stole it.
The theory always was that took off any high spots that would cause a hot spot in a cylinder. Have always done it to any small 2 or 4 stroke motors.
No problems yet.

 

[CurSedVoyce]

Run mine about a week and tune em.... Either they break or are broke in with in a week

 

[Al Smith]

Run 'em like you stole 'em.

That pretty much sums it up--to a point .Run em a tad rich for a tad while then lean em out and get with it .They never run good until you really run them .