[NSRCA-discussion] OS 140 EFI and OS 1.60 FI

[Grow Pattern]

If you use an "A" mount the injector/regulator will last just fine. The big 
2-c runs smoother than a 4-c so you can afford less isolation.

Take care to insulate the module from vibration and voltage spikes.

Common  OS 1.60 FI problems are:
 - bad/sticking check valves - engine needs good tank pressure easy to test 
for and fix - often confused with bad injector symptoms.

- failed temp-sensors - will run but hard to start - often confused with bad 
injector symptoms.

- failed tach-sensor - Motor starts and stops immediately- no rpm no fuel 
supply!

Common OS EFI problem:
- Swollen seal on main-bearing - drags on main shaft counter balance at idle 
and causes quitting - usually caused by overheating or some petroleum based 
products - misleads operator to look for other causes.

Duct and keep crankcase cool on both engines for good runs and to prevent 
above problems.

Prop below 8,000rpm. On the ground shoot for 7,800rpm max and then richen 
slightly. 20% coolpower Pro-pattern works well.

EFI and FI lets you override tuned pipe peaks (Lean spots). This could be 
bad or not depending upon what you are looking for. One way is to set the 
pipe length for good top end and dial transition with module.

Regards,

Eric.


----- Original Message ----- 
From: "Michael Laggis" <fishgod at mail2web.com>
To: <randy10926 at comtekmail.com>; "NSRCA Mailing List" 
<nsrca-discussion at lists.nsrca.org>
Sent: Tuesday, August 01, 2006 4:39 PM
Subject: Re: [NSRCA-discussion] OS 140 EFI


The word that I heard is that if you a use a soft mount with them you end up 
breaking sensor parts.  Take it for what it is worth.  I believe Eric 
Henderson has used a few of them.

Michael Laggis


-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org on behalf of Glenn Hatfield
Sent: Tue 8/1/2006 12:25 PM
To: nsrca-discuss list
Subject: [NSRCA-discussion] OS 140 EFI

Anybody have an opinion about the OS140 EFI?  I have seen very few being 
used,  other than price is there a reason?

Randy




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