Totaled my skystar today due to radio failure (7 months in the making and only 3 bench and 3 flights). Plane is a goner while the engine still has hope. Visual damged to the engine is the crankcase (chip on both the lower push rod tube area), valve cover and both hose nipples bent. Total cost of the external damage is about $89. What I wanted to ask is where you guys have your engines sent to be checked (dunno if theres damage internally) and quoted for the cost of the damage. If its $200 up Id rather get a new one but if the cost is $150 below I'll have it repaired.

PMR
Sorry for your loss, I know exactly how you feel. Around the tenth flight on my Explorer V90 it rolled over and went straight in from 200 ft at 3/4 throttle. The plane, receiver, engine(Saito 100), and three of five servos were a total loss. It didn't leave much to take home.


I sent my YS 140s to YS Performance in Nevada. Great service and quick turn around. You can ask Dave Shadel in the YS engine forum for his opinion.

DEG

Sorry to hear of your loss, I too have an MK Skystar & it was a lot of work to build so I feel
for you.
The above post on Performance Specialties is the way to go for YS advice- hopefully your
1.10 can be saved.

I also had a 1.10 in my Skystar but retrofitted an OS 91FX very soon. Those MK mounts are
terrible! This has been documented a lot on RCU lately- never again for me.
They worked ok for me last I used them many years ago when the OS 61RF-P was "state of the art"- but there is no way they work with 4 cycles & the bigger 2 cycles we use today.

I will build more MK kits, but will modify the nose for a Hyde mount or similar. I would be curious
what modelers in Japan say about these mounts. The kits are beautiful but as designed force
you to use their mounts and they just are not up to the job.


Scott

Thank you guys for your support. It really stings but I'm confident it will disappear very soon.

lowrider: Believe me, the MK mounts are a nightmare, it didnt last long as my very short lived Skystar. After 3 bench and barely one flight my brand spankin new YS110 was hanging for dear life after two front rubber mounts were cut off. The best alternative I found out were the old O.S. urethane rubbers. It even has the same holes and size as the MK's.

My Skystar was about to be shippied the next day for our NATS but tragedy struck.

I'll have this engine sent to Nevada. Thanks for the referal.