RE: More start-up issues
Went back to stock on HS (haven't touched LS yet). Stock is 2.5 turns out, curtousy of an old thread. Pulled the air filter so I could a little more what was going on. Then got it running today and made a few break in runs in the nearby street. Still a little rich, a bit too much white smoke and temp didn't get near 200 F yet. Progress .... Ahhh
Posted on: 1/31/2011 1:10 AM by Author "Flying Bougie" in the forum "RC Monster Trucks"
http://www.rcuniverse.com/forum/fb.asp?m=10301724

RE: Start-up issues ...
Well the engine runs great at top end, a slight bit richer than max rpm,very smooth and throwing a thin puff of white smoke. HS valve opened 1.5 turns. Looks as though i'm quite close with the LS settings as well, but not quite there. Engine is a Magnum XL 32, ABC type engine which is on a 25 size trainer with ailerons, maybe slight over-powered but what the hell .. I was off getting LS back to factory since I was using a downloaded manual for the 40-46. Just found the XLS25-36 manual and go figure, procedure to get back to fact settings are different on the 32 and 36 size. Complete opposite process ... no wonder my LS valve assembly got all F'd up [>:] Will try the pinch method to see way to go from here. Edit: After some back and forth, transition is "almost" perfect, so I basically won't mess anymore with settings for now. I went through about 4 fuel tanks while keeping an eye on the engine temperature. It still not that stable at low idle. We'll see after a few more fuel tanks .. the goal is for this bird to get it's madden flight during mid - end of Feb.
Posted on: 1/31/2011 12:52 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10301311

RE: Start-up issues ...
Well after cleaning thoroughly the carb, and changing to new fuel (just in case) my problem is solved. Now it seems to run well on the HS needle adjustment so I need to tune it a bit tomorrow. It misses slightly, doesn't transition well yet which is my next task. It appears that factory setting are quite rich indeed. Many thanks for all your suggestions and input.
Posted on: 1/30/2011 5:20 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10299551

RE: Start-up issues ...
Some updates : - glow plug is good, changed it anyway for good measure. - adjusted (again) HS valve back to factory settings, about 2 1/4 - 2 1/2 turns out. - found LS valve adjustment info (quite confusing). may or may not be at factory settings. It said open up the carb, close then open 2 - 2 1/2 turns. think i got it - disconnect hose from muffler and blow to prime .. almost positive no leak. - disconnect hose off carb, blow and smooth flow.. seems ok. - connect back to the carb, disconnect from HS valve .. blow to get fuel into carb but it seems very difficult to flow into carb. Maybe some dirt, old gukked up fuel or something inside. I tried getting some WD40 in there. I'm pretty sure it's either the carb LS jet or some dirt / crap in the carb. Next step I guess remove carb and clean. damn .....
Posted on: 1/29/2011 7:17 PM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10298940

More start-up issues
Hi All, I just bought a HSP nitro 1/8 scale monster truck a 21 size nitro. I want to do a break in so I was going about it the other weekend. I didn't adjust the needles, I just primed it and pull started it and I started up relatively easily. I went through approx 2/3 of a tank totally so far. It was not very stable at first, I was just trying to go to from a fast idle to 1/8-1/4 throttle intervals to get it running stable a bit. I did notice it got noticeably more stable and I didn't adjust the high speed needle much but was trying to adjust it "slightly" as it had a tendact to die or miss as I tried 1/2 throttle (maybe it was too lean). Since I didn't have a temp gauge, I would let it run for about 2 minutes intervals and would stop it afterwards as it looked to be getting a little hot. I have now already brushed up again on proper break-in procedure and have a temp gauge so break-in should be a wizz. Yesterday I try to start it, all charged up .. glow heater ok, glow plug ok, try priming it and start pulling. Nothing ... It seems as though there was no ignition, or that it was not getting any fuel at all. It did get relatively cold in the garage since I started it last time. Should I try to make it richer and / or somehow make sure it is properly or better primed ? Not that easy to get fuel as it has a air filter ty strapped on .. Thanks
Posted on: 1/23/2011 6:35 PM by Author "Flying Bougie" in the forum "RC Monster Trucks"
http://www.rcuniverse.com/forum/fb.asp?m=10283629

RE: Start-up issues ...
[quote]ORIGINAL: FLAPHappy You do what you feel is necceary. I question, why did you ask the question if you wanted advise?  I gave you my opinion and only a suggestion. In my limited experirence, the low end is too lean. Blow bubbles until you find out. [/quote] Hi FLAPHappy, yes I did ask for advise. And no offence intended, but no need to send me off blowing bubbles. I'd rather check the basics first and I think it is basic info that the low end should be adjusted only after the high end mixture is ok. If I still have the same issue after I check that that the basics are Ok, then I will see where LS / idle is closing it and counting how many turns. Then I could richen it to see the result.
Posted on: 1/23/2011 6:20 PM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10283597

RE: Start-up issues ...
Thanks for the inputs. - I think the plug is good, but I will check the color and condition, as well as the "glow", I have another so if in doubt i'll probably replace it although I don't think that's my issue. - The fuel could be old, so I will drain it out - Before I add more fuel, I will remove and disconnect all the vents and fuel lines and check the tank for leaks maybe with soapy water (?), probably will replace all the hoses if tank is good. Either because it was very cold or due to a leak or both, I did notice it priming very slowly. I would assume my issue is an air leak somewhere in there. - I should add the fuel filter back that I removed some time ago, and I might add the air filter off my OS46 (if it fits) .. i do live in a dusty area. - Then I'll try my best at checking for leaks in the engine with straw as explained .. - Then I'll go to 2.5 full turns from closed on the HS valvle and give it a go. I'll leave idle alone for now as it used to idle good, I've read to adjust that only after your HS is set. Many thanks
Posted on: 1/23/2011 3:19 PM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10283191

Start-up issues ...
Hi All, I have had a case where I think I was trying to run an engine too lean previously. It was running ok, idling fine and throttling up to about 1/3 but then would die. I would try to adjust the HS valve but never by enough to make a solid difference. Finally someone mentioned that I was probably way too lean, so I should try to find the factiory settings or go 1 to 1 and 1/2 turns out richer. The next time I tried it, it seemed as though the setting was better at mid - full throttle but the engine died relatively fast I says to turn needle CW full in, and then open 2 and 1/2 turns. Does 1 turn mean 360 degree (12 oclock to 12 oclock) or does 1 turn mean 12 to 6 in R/C world ? I ask because on some Nitro truck you tube video's they refer to 1 turn and it is actually 1/2 a turn (?) I always had the habit (maybe bad habit) of priming the carb manually with a few drops directly in the carb mouth. Also from the truck video's I see where a thumb on the muffler hole (when cold) aids to get the fuel in teh line right up to the carb. Today I tried to get it going and as usual it starts easily BUT doesn't keep. I almost seems as though it was not getting enough fuel and after it burnt the primer fuel in the carb it stops. What should be my trouble shooting steps ? Thanks
Posted on: 1/23/2011 5:48 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=10282032

RE: Powermaster fuel?? No more?
^ that sounds like nice and clean moonshine .. :-)
Posted on: 6/8/2010 9:27 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9789301

RE: Break-in for 25 Glow Engine ...
Appreciating all the above infos and suggestions. Thanks .. Based on all above, my low speed needle valve should be hidden behind a blackened 8mm needle plug (not to far from the fuel nipple). Then, there is an idle mixture screw (small flathead a assume, ), that you access through a hole on the side of the throttle arm. Will try your above instructions as soon as the rain slows and write the updates. If what I wrote seems off, let me know. Thanks again,
Posted on: 6/7/2010 7:23 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9786667

RE: Break-in for 25 Glow Engine ...
I've only adjusted the main needle valve one way or the other so far at about 30-40 % full throttle, to make it run smoothly .. I guess only slightly rich. And from idle to 30-40% range, it runs really smooth and well, but at 50% or higher it "looses" its timing / adjustments almost immediately. That's why I didn't think it was the needle valve adjustment issue .. although I will try to make it richer, while pushing it near full throttle next time. I do see some significant improvements during the last several runs, so it may also be close to break-in but not completely yet. The engine is a Magnum XL 25A. It only has the one main needle valve, and 1 screw (for air bleed). I've never touched that screw yet.
Posted on: 6/6/2010 7:20 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9784201

Break-in for 25 Glow Engine ...
Hi All, Firsly I was going to break in an OS46, that was in a bi-plane. But since I am a beginner (long time fan and hobbiest .. but with low flying experience) , i decided to get a 25 size trainer. Not very big, but a nice trainer with ailerons. Following my limited OS experience of break in, as well as some friends info, I have started with a rather rich mixture and step by step bring
Posted on: 6/6/2010 4:56 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=9784121

RE: Beginner build of an Anniversary Edition Piper Cub
So which is the best clipped wing cub ARF and build kit 40-46 size that is a decent scale model ? And what about the J3 Cub 52 (blue) ? I just LOVE those plans .... I have a os 46 ax that could power it just fine (from an ultimate that will stay in storage until I have more flying time / or a decent instuctor). Most likely will upgrade to a 60 or 75 2s in the bipe .. i here it will be a screamer
Posted on: 3/17/2008 8:45 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=7237594

RE: Nitro trainers...
To a tree, balsa wood and MonoKote taste just like chicken! [:D][:D][:D] So many people talk about the avistar. I have an ultimate bipe (on the shelf) and am also wondering about an ARF trainer. I was thinking 40ish ..
Posted on: 3/14/2008 7:47 AM by Author "Flying Bougie" in the forum "Beginners"
http://www.rcuniverse.com/forum/fb.asp?m=7222826