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Search: Posts Made By: ckn
Showing results 1 to 18 of 18
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Forum: YS Engines Support
05-09-2011, 05:45 AM
Replies: 9
Views: 1,295
Posted By ckn

RE: How to take out cylinder liner of DZ170 ?

Hi gentlemen, I finally got it done !

I pushed the bottom of the liner through the opened rear cover witha flat screw driver, slightly tapping with a mallet. This results in the liner moving upby...
Forum: YS Engines Support
05-08-2011, 05:13 PM
Replies: 9
Views: 1,295
Posted By ckn

RE: How to take out cylinder liner of DZ170 ?

Thank you ThumbSkull, mtcarey and spaceworm.

I have already taken out the head assembly.

The problem is that there is nothing on the liner that I can wedge or grab.

I think I shall try the...
Forum: YS Engines Support
05-08-2011, 07:24 AM
Replies: 9
Views: 1,295
Posted By ckn

How to take out cylinder liner of DZ170 ?

My DZ170 is making intermittent squeaky noise when running so I suspect the bearings. I need to take the whole engine apart. I have already removed the backplate and carburector assembly, the...
Forum: YS Engines Support
08-22-2010, 06:15 AM
Replies: 7
Views: 1,272
Posted By ckn

RE: YS 110 Barrel seal

Rstearman:
Please try to buy from YS at website http://www.yspower.co.jp/en/data/partslist/fz110s.html
The part is called F9358 throttle barrel seal. It costs 200 japanese Yen plus postage.
CKN
Forum: YS Engines Support
05-29-2010, 11:58 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

Thanks ThumbSkull. I shall bear this in mind.
Forum: YS Engines Support
05-29-2010, 11:55 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

I have set LSN to factory preset position of 1.5 turn from fully closed. I did not change it because I believe that the LSN is only effective at around 2000-2200 rpm. The regulator screw has more...
Forum: YS Engines Support
05-29-2010, 11:52 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

To all friends contributing to this thread :

I did not complete the tuning process because of heavy rain at the field.  I just managed to tune the engine to sustain an idle of around 2200 rpm. ...
Forum: YS Engines Support
05-29-2010, 11:34 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

The engine was old. It was working well. Prop 16 X 11. 20% nitro 20% oil. Max rpm 8000. HSN 1.5 turn from fully closed. Regulator screw 0.5 turn out from flush. Low spped needle 0.5 turn out from...
Forum: YS Engines Support
05-29-2010, 11:11 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

I had tried putting in a new glow plug with no result.
The tank can hold pressure (hand turn prop 20 times and tank has pressure after 1 day).
When I asked the question, the regulator screw is at...
Forum: YS Engines Support
05-29-2010, 11:05 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

This was my assumption - CW to lean. However after 2 weeks fiddling with the regulator screw, I start to doubt and so I ask the question. See following posts.
Forum: YS Engines Support
05-29-2010, 10:58 AM
Replies: 17
Views: 4,028
Posted By ckn

RE: YS FZ140 sport regulator screw direction

Thank you Faulknej, Petec and ThumbSkull.

First some latest development.  Then I shall answer your posts in later post.

A few hours ago I was again tuning the engine at the field.  To my...
Forum: YS Engines Support
05-29-2010, 02:46 AM
Replies: 17
Views: 4,028
Posted By ckn

YS FZ140 sport regulator screw direction

Help ! Please tell me the direction of the regulator screw for YS FZ140 sport engine. Is it clockwise tolean or the other way round ? I have problem with the engine and is trying to tune the low end...
Forum: Gas Engines
05-10-2010, 09:08 AM
Replies: 112
Views: 9,378
Posted By ckn

RE: Ignition loads current verses input voltage

Kurt2022:

I would suggest that you stop all the counter-arguments because the more you put forward, the more of your weakness in this subject is exposed.  As I followed this forum, at first I...
Forum: Gas Engines
05-09-2010, 09:09 AM
Replies: 112
Views: 9,378
Posted By ckn

RE: Ignition loads current verses input voltage

Dear John :

I absolutely have no intention of implying that you are not precise in the treatment of Ohm's law.  In fact I admire your patience of explaining the basic principles to laymans.  From...
Forum: Gas Engines
05-09-2010, 08:08 AM
Replies: 112
Views: 9,378
Posted By ckn

RE: Ignition loads current verses input voltage

As I said before, the arguments in this post arise because people are talking about different things, and all is correct in their context.  Let me explain.

For a "system" with a battery driving an...
Forum: Gas Engines
05-07-2010, 10:13 AM
Replies: 112
Views: 9,378
Posted By ckn

RE: Ignition loads current verses input voltage

One of the most common misconception of Ohm's law by first year engineering students is that it applies to all loads. No. It is only true for linear devices such as resistors, inductors, capacitors...
Forum: Gas Engines
05-07-2010, 06:04 AM
Replies: 112
Views: 9,378
Posted By ckn

RE: Ignition loads current verses input voltage

There is no point in the agrument. Everybody is right in their context. We are referring to to three different situations.

Ohm's law states that : For a linear divice, and under constant...
Forum: O.S. Engines Support
04-13-2010, 08:28 AM
Replies: 16
Views: 1,802
Posted By ckn

RE: Surpass 1.20 III pumped idle problems

I want to report one of my experience. Two years ago I had an OS FS 91S II P which I overhauled and replaced bearings. After re-assembling I found the engine has serious lack of power and will not...
Showing results 1 to 18 of 18


 
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