What Oil For Break-in?

[J-Madd]

I have heard you can't use synthetic oil for break-in. I broke in a Blaster a loooonnnnnggg time ago and it held up great.

 

I need help. Breaking in this weekend. I only have access to cheap oils, besides synthetics.

[sredish]

I have heard you can't use synthetic oil for break-in. I broke in a Blaster a loooonnnnnggg time ago and it held up great.

 

I need help. Breaking in this weekend. I only have access to cheap oils, besides synthetics.

MC1 is fine, just be sure to give it plenty. I'd run a 32:1 mixture throughout break in. If you use MC1 to break it it, then stick with it for a little while, don't switch during break in.

[Justintoxicated]

break it in with yamalube, then switch back to MC1

[J-Madd]

I can't get any Yamalube now, but I'll probably use Castrol. It seems similar in consistency and viscosity. Mix at 24:1?????????. What do ya'll think?

[Justintoxicated]

I just mixed 32 to 1, but if you pull of 24 to 1 I don't think it would hurt..

 

The only problem with breaking it in with synthetic is that it can take forever for the rings to seat and to properly break it in...From my understandnig...

 

I was told to break in with yamalube even before going to castrol...Because it also protects too well..

 

Any dealer should have yamalube!

Edited May 7, 2004 by Justintoxicated

[.]

go to a honda dealership. Honda makes a non synthetic 2 stroke oil. Honda 2r or something like that. Run like 2-3 gallons of that and then switch to the oil you plan on using all the time.

 

Do a search, I posted about the oil before and remembered the name back then. A builder on here also told me about the oil in one of the threads.

 

 

The problem with breaking in a synthetic is that it is to slippery of an oil and will not let the rings and cylinder walls create a seal the way it should. It doesnt let them wear correctly. The cross hatches you get from honing are supposed to wear away and form to your rings, as the outer edge of your rings is supposed to wear, and form to the cylinder.

 

Thats why you hear people saying or you see pics of cylinders that have 20-30 plus hours on them with the crosshatches still in the cylinder walls. They arent supposed to be there. It may let the engine wear for a longer period of time maybe, but your not getting the full potential out of the engine.

Edited May 7, 2004 by .

[J-Madd]

Regular CASTROL (aka weedeater, chainsaw, outboard 2-stroke oil) protects too much? Its what I put in my pontoon boat.

Its not synthetic. I live 20 miles from nearest dealer, and don't want to drive 40 miles for oil. But if it is the concensus of this forum that Castrol (not CasTOR) will not allow the rings to seat, then I'll make the drive, as I trust ya'll completely.

[350duner]

LRD reccommends using Dumonde Tech premix for break in. It's a non-synthetic. After that I went to my regular premix (Castor oil).

My engine builder told me castor is fine for breaking in motors (it's not synthetic either), so I've been using that lately and it's worked fine, great compression and longevitiy.

The cross hatching on your cylinder walls after boring and honing act like a file on the piston rings to seat/size them to the cylinder walls. If you use something that lubricates too well the sharp edges on the cross hatch will get worn off before the rings can seat and you get low compression and blowby.

[J-Madd]

Walmart only had Penzoil .....its non-synthetic. I'm just gonna use it. I'm not gonna be ridin' hard, and everyone agrees that you need friction at break-in. It sounds to me that the crappier the oil, the better the rings seat.......I could use th e oil that came with my weed-eater!!!/jk

 

 

If this is an absolutely horrible mistake, let me know. It'll be tommorrow before I check back, though.......I'm headin' to my shop to to put 'er back together and begin some heat cycles.

 

Thanks

[Banshee~]

I used bel-ray H1R to break in my '04.I let it warm up good and rode it for hour real easy then turned off and let it cool all the way down and do that again.After that I babyed it threw another tank of gas.When I went back for tune of the mechanic rode it and said that it was a strong bike,and a kid brought his '04 in for trade in and mine was faster than his.