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Broken pushrod on lightly used Saito 100

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Old 12-17-2012, 03:07 PM
  #26
skrez
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Default RE: Broken pushrod on lightly used Saito 100

Guys,
Anyone know where the factory setting is for the low speed needle valve because it is not stated in the manual? It saids start with HSNV 3 1/2 out from bottom, however it said leave LS at factory settings?
Frank
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Old 12-17-2012, 03:53 PM
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Default RE: Broken pushrod on lightly used Saito 100


Quote:
ORIGINAL: Old Fart

I'm with w8ye in that it takes a real good flatblade screwdriver,a bit of muscle and a lot of luck to unlock the rocker pivot arm screw
Take your monokote heat gun and warm it up. Comes out in a snap...

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Old 12-17-2012, 04:46 PM
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Default RE: Broken pushrod on lightly used Saito 100


Quote:
ORIGINAL: fishingships

If you do-it-yourself, does that kill the warranty? I know Frank's is already out of warranty, but I am just curious.
Horizon has always sent me warranty parts for doing my own repairs.

If you can demonstrate knowledge & ability during your contact they will be more than happy to save the added expense of shipping & labor.
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Old 12-17-2012, 04:48 PM
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Default RE: Broken pushrod on lightly used Saito 100

Quote:
ORIGINAL: w8ye

Many times the rocker shaft pivot screws don't want to come out.

Make sure that you use a good qualility screw driver & have the engine secured in a vice. A bit of assistance W/a pair of channel Locks will help.
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Old 12-17-2012, 04:51 PM
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Default RE: Broken pushrod on lightly used Saito 100

Frank
The low speed needle should be flush with the throttle arm.

Randy
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Old 12-17-2012, 05:50 PM
  #31
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Default RE: Broken pushrod on lightly used Saito 100

I have a Sato 100 with a perry pump, probably 400+ flights, adjusted the valves once. I run a15x4 prop, it will hover, but not really well in a Goldberg Decathlon. RPMs are 9500 to 9800 on the ground, and as stated earlier, about another thousand in the air, often sounds like the tips of the APC prop are going supersonic. I use high oil content heli fuel, sometimes up to 30 % nitro. Now I am going to have to "knock wood," it really runs great. I have a Sato 180 that I have never been able to make run right and I have had some real guru's look at it and tune it. Came with a bad plug which really threw us off at the start. The damn thing just quits at the most inopertune time. I may use it as a boat anchor. wallace.tharp
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Old 12-17-2012, 06:33 PM
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Default RE: Broken pushrod on lightly used Saito 100

If plastic throttle arm about 1/16th inch below even with the end. It will end up about where this one is.
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Old 12-17-2012, 09:22 PM
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Default RE: Broken pushrod on lightly used Saito 100

Wallace has anyone checked the cam timing or had the cam cover off? Ihave seen a lot of Saitos with damaged cams for one reason or another.
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Old 12-18-2012, 09:38 AM
  #34
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Default RE: Broken pushrod on lightly used Saito 100


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ORIGINAL: jeffie8696

Wallace has anyone checked the cam timing or had the cam cover off? I have seen a lot of Saitos with damaged cams for one reason or another.
Thanks for the tip. Would that make it just abruptly quit dead after long test runs on the bench were not a problem? I know... it sounds like a fuel problem, but I have almost given up on it. wallace.tharp
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Old 12-18-2012, 12:03 PM
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Default RE: Broken pushrod on lightly used Saito 100


Quote:
ORIGINAL: wallace.tharp

I have a Sato 100 with a perry pump, probably 400+ flights, adjusted the valves once. I run a15x4 prop, it will hover, but not really well in a Goldberg Decathlon. RPMs are 9500 to 9800 on the ground, and as stated earlier, about another thousand in the air, often sounds like the tips of the APC prop are going supersonic. I use high oil content heli fule, sometimes up to 30 % nitro. Now I am going to have to ''knock wood,'' it really runs great. I have a Sato 180 that I have never been able to make run right and I have had some real guru's look at it and tune it. Came with a bad plug which really threw us off at the start. The damn thing just quits at the most inopertune time. I may use it as a boat anchor. wallace.tharp
That one may be a good candidate for a spark conversion?? Of course you need to rule out any mechanical issues first.

Ken
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