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HomeAircraftHelicopterEngines Plugs Mufflers Fuel › YS91 piston picture???
12-10-2004 11:41 PM  13 years agoPost 1
Blackdog

rrApprentice

In a snow bank.........with no money

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Looking for a picture of a YS91 piston. I just recieved my new YS91 (first YS engine for me) and when I look down the glow plug hole at the piston, I notice what I would call a tiny "pit" or "dimple" in the top of the piston directly lined up in the middle of the glow plug hole.

Is this normal?? Of any concern??

Blackdog

Addicted to Kaos and destin for disaster

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12-10-2004 11:48 PM  13 years agoPost 2
airdodger

rrElite Veteran

Johnston USA

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Yes it is normal. Chris

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12-10-2004 11:50 PM  13 years agoPost 3
z11355

rrMaster

New England

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Yes Doggo,

they all have that dimple.

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12-10-2004 11:53 PM  13 years agoPost 4
Blackdog

rrApprentice

In a snow bank.........with no money

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Talked to YS
Yup. Just got off the phone with Dave from YS Preformance specialties and he said that is normal. He said it's a machining mark.
Good for other first time YS owners to know incase they notice the same thing.

Blackdog

Addicted to Kaos and destin for disaster

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12-11-2004 12:02 AM  13 years agoPost 5
inkspot1967

rrProfessor

Cranston Ri

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yup its normal
you could have asked us ys guys
is that r90se done yet hehe......

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12-11-2004 12:09 AM  13 years agoPost 6
Obsessive

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41.73N 71.41W

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What about that dimple in the side of your ELEMENT?

Did you see the machining mark I left

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12-11-2004 12:12 AM  13 years agoPost 7
z11355

rrMaster

New England

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you gonna be ready to lay some of that
serious rhodylin smack down on the 14th?

Plenty of pine sap for you

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12-11-2004 12:15 AM  13 years agoPost 8
inkspot1967

rrProfessor

Cranston Ri

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z11355
whats going on on the 14th where and when????

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12-11-2004 12:17 AM  13 years agoPost 9
z11355

rrMaster

New England

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Doggy,

Clue Mr. Inky in

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12-11-2004 12:18 AM  13 years agoPost 10
Obsessive

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41.73N 71.41W

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Hope to be there on the 14th...feeling a bit under the weather this weekend. Working too much - 16 hours a day this month....the good side, it's all billable.

Daddy gittin' his own YS91 in a few days!

Soon, the Raptor family will have a new Head of Household.

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12-11-2004 12:23 AM  13 years agoPost 11
z11355

rrMaster

New England

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did you get a spare piston and ring for it?

ya know, just in case you have a lean run?

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12-11-2004 12:25 AM  13 years agoPost 12
inkspot1967

rrProfessor

Cranston Ri

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Obsessive
dont tell me you got a r90se also....

i still want to know about the 14th ????

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12-11-2004 12:34 AM  13 years agoPost 13
Obsessive

rrKey Veteran

41.73N 71.41W

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R90SE: Not yet, but it's on my blingy list for Santa.

Don't need no stinkin spare piston and ring

Raptor90SE
YS91/Viperhead/Hatori SB-16
91 Tooth main gear
Gy601/9251
4 Airtronics 94758s
GV-1
710mm 14mm/5mm V-BladesII
Duralite battery system
Revolution Whip

a Massheli, heli only field

...and for a few plankers....well, let's just say they're on Santa's other list

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12-11-2004 12:40 AM  13 years agoPost 14
z11355

rrMaster

New England

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seems a shame to put all that nice stuff into a
Rap.

I know someone who wants to sell some Nova's.

Taht stuff would fit well in a Nova.

Seriously though, sounds nice. Congrats.

So long Timmy!

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12-11-2004 12:42 AM  13 years agoPost 15
Obsessive

rrKey Veteran

41.73N 71.41W

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I know someone selling a couple of Millie's too. It's an all for nothing Robbe giveaway!

See ya Timmy,

Later, Dr. Smith.

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12-11-2004 12:46 AM  13 years agoPost 16
inkspot1967

rrProfessor

Cranston Ri

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great list but the 91 tooth main gear
you need 8.45 for the ys91 viperhead Hatori SB-16

and the Hatori SB-16 should be
Hatori SB-16 fh


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12-11-2004 08:00 PM  13 years agoPost 17
Blackdog

rrApprentice

In a snow bank.........with no money

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Can you say.....................................HIJACKED . Here's the dillo. 12-14-04 @ LL,...........b there or be gay!. Which some of you already are

OH and bring some mittens. 34deg tuesday.

BD

Addicted to Kaos and destin for disaster

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