Assembly lube on new piston?

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jackpiner57
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Assembly lube on new piston?

Post by jackpiner57 »

I found some Bel-Ray assembly lube and wanted to know where to put it. Is this the right stuff to use? Should I coat the piston and rings and then wipe off? Use on small end bearing too? Coat cylinder wall too?
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Indawoods
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Post by Indawoods »

Just use your 2-stroke oil...coat all the parts... don't wipe off. You'll be good to go...
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Post by jackpiner57 »

Sounds good to me, thanks!
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Post by KDXGarage »

Yep, just use 2-stroke oil.

I think your idea to coat, then wipe off is good. I just read that this morning in a motorcycle general repair book. I guess I would rater have glazed over doughnuts instead of rings / piston / cylinder, etc.
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Post by canyncarvr »

Used to be common practice was to DUNK the whole mess (piston/rings) in a pot-o-oil.

Probably more likely to cause a problem wiping it than leaving it alone. Ring edges/ends are real sharp.

I usually pour on a 'glob', squeegie it around with my finger, giving the rings a few back-n-forth wiggles to make sure the lands are coated.

A maybe too late BTW... if you got a back ring for the second ring (the spring metal just-had-a-permanent-looking-thing?), leave it out. What it does best is get stuck.

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Post by KDXGarage »

You might want to slowly kick it over a few times before giving it an official kick.
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Post by jackpiner57 »

CC, Can you explain the BTW a little more clearly? Do you mean don't put on the lower ring?
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Post by Indawoods »

He's talking about a backing ring.... It looks corrogated that fit below the bottom ring. Basically, if it comes with 3 rings... ask!
Most manufacturer's don't use them anymore... My Pro-X didn't and Weisco only has one ring I think.
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Post by KDXGarage »

You can look on the buykawasaki.com parts diagram to see exactly what he is referring to.

When I helped wsjkawasaki put in a new Wiseco piston in his 220, it came with two rings and no backing ring(s).
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Post by jackpiner57 »

Thanks Inda, EG is sending me a Wiseco, so I won't worry about that.
Thanks Jason I'll check that out.
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Post by KDXGarage »

No problem. On the Wiseco instructons, I think it said to run the lettered side of the rings pointing up.
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Post by Indawoods »

I've never used a Wiseco piston...was only going by pics I've seen. Good info Jason.
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Post by motorider200 »

Indawoods wrote:Weisco only has one ring I think.
Weisco's have two rings. I have a pic of a toasted one in my gallery. :shock:
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Post by IdahoCharley »

FWIW - letter side "up" on all rings installations no matter what brand of piston.
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Post by jackpiner57 »

Thanks guys for all the good info.
2002 KDX200
2005 KX85
2005 DL650K5 V-Strom
NETRA
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Vermont Motocross Association

I got stopped for speeding and the cop asks me "Don't you know the speed limit is 55 miles per hour?" So I said "yeah but I wasn't gonna be out that long."
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