RE: A&M question
I "think" that the easy way to tell the 2.4 and the 2.0 apart is the cylinder bolt flange. The 2.0 has slots and the 2.4 is a solid base.
Posted on: 9/11/2012 4:48 AM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11224798

RE: Moki 1.80 & 2.10 conversion to gas
Ain't learning things without getting into your pocket book wonderful.[:D]
Posted on: 8/26/2012 9:55 AM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11206488

RE: Walbro midrange adjustment
That looks to be a factory cutout, I'd leave it alone. It maybe there to fix another problem.
Posted on: 8/25/2012 10:57 AM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11205601

RE: ZENOAH G26 RPM
The bench mark prop is an APC 16-8 @8900 rpm. You need to get one and see what your engine does. If your engine is close.then you need to resize the Xoar till the engine is in its power band. IMHO an 18-8 Xoar is way to much prop.
Posted on: 8/24/2012 3:22 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11204807

RE: Walbro midrange adjustment
From a place far away and long ago, involving Amal, SU and Weber carbs, I have a set of tapered micro reamers. So much better than drills. Remove the low speed needle, squirt carb cleaner in and see which jets flow. Remove the welch plug and enlarge the hole closest to the center.
Posted on: 8/15/2012 9:43 PM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11195267

RE: Need more power which 42 -46cc to convert
The Poulan 42 and 46 are completly different engines. The 46 has more power, but is harder to convert (intake manifod) 46 or 52cc?? depends on which brand Maybe Shindawa??? TKG
Posted on: 8/15/2012 8:22 PM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11195245

RE: Walbro midrange adjustment
On a Walbro the idle needle adjusts the idle and midrange. About all you can do is dismember the carb and remove the Welch plugs and make the midrange jet bigger. This would make the mid range rich even after you lean out the low speed. How much???? well thats why they sell bags of welch plugs.
Posted on: 8/14/2012 8:13 PM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11193871

RE: What the....?
With improper throttle management you could snap roll that Triumph.
Posted on: 8/14/2012 8:00 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11193847

RE: Toni Clark Zenoah
ALL the G45 say Toni Clark on the engine. Why?????
Posted on: 8/13/2012 11:25 AM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11191784

RE: High rpm 20cc motors
I have a G20 in a .90 Seagull Yak. The engine has CH ignition and a Toni Clark pipe. APC 17x6 9200 rpm. The pipe is a broad power band quite pipe a more hard core pipe would raise the power. In transposing props a 14x10 on a serious pipe would be about the same rpm.
Posted on: 8/8/2012 5:14 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11186172

RE: Webra Bully and Walbro carb help
[quote]ORIGINAL: j301 Here we go again! Just when you thought it was safe to go back into your shop... Just got this as part of a trade (sort of the thing thrown in to ''sweeten the deal'' ). It is believed to be a Sachs 3.2 with a Bennett mount and B&B muffler. I can say that it weighs a ton, but for a warbird like the CMP 80'' Zero, that would be great. Anyone recognize this thing, or should I go fishing with a new post? [/quote] Thats NOT a Sachs its a Quadra 50/52
Posted on: 8/7/2012 7:45 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11185000

RE: FPE 2.4 Ridge Ignition
For simplicity call FPE and see if they will sell you a re-keyed prop hub. The hub will be between 27-30 degrees BTDC.
Posted on: 8/7/2012 7:38 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11184989

RE: Stihl 62cc challenge....
It is interesting, but so few have the machine tools and the knowledge to do this. Every body wants bolt on. That was a PIA when I designed stuff for CH. " What do you mean I have to drill and tap a hole?" AND there is always some new super good deal Chinese engine out there.
Posted on: 8/7/2012 8:32 AM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11184250

RE: FPE 2.4 Ridge Ignition
The FPE has a straight shaft and the key is required. The sensor is glued in a groove in the crankcase you would need to remove it and file the sensor mounting groove round. Then use some sort of clamp on sensor. The sensor is also bent 90 at the end because the magnet is in the back of the hub and not the side.
Posted on: 8/7/2012 8:26 AM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11184243

RE: FPE 2.4 Ridge Ignition
The FPE 2.4 ill need a new re timed prop hub to get max benefits from the new ignition. Or you have to move the sensor.
Posted on: 8/6/2012 7:13 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11183588

RE: Webra Bully and Walbro carb help
Fuel stand off or fuel reversion is often the result of too big a carb and too low an rpm.. Change the prop to an 18x8. Just check the pump port that hole goes into the crankcase AND the manifold matches the pump hole in the carb. TKG
Posted on: 7/27/2012 8:38 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11171873

RE: Webra Bully and Walbro carb help
Check that the pump port is lined and working correctly. Your description sounds like a Walbro running on suction and not pump action.
Posted on: 7/25/2012 7:22 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11169460

RE: Zenoah G45
G-45 has external pump line. Just flip the carb and make up a new pump line (if needed). TKG
Posted on: 7/25/2012 7:17 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11169450

RE: Webra Bully and Walbro carb help
Get one of the RCEXL testers and set the rpm for around 12,000. Take on old spark plug and cut the side electrode OFF. In open air a good ignition will fire the gap.
Posted on: 7/15/2012 7:05 AM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11155872

RE: Webra Bully and Walbro carb help
If the CH unit is in a silver/aluminum box then it should be OK. If its in a brown box then its a paper weight.
Posted on: 7/13/2012 7:15 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11154444

RE: Webra Bully and Walbro carb help
A CH unit will have SS engraved on the back cover if its a computer unit. If not a fixed unit will only effect idle not WOT.
Posted on: 7/9/2012 7:05 AM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11148557

RE: What happens if timing is off?
To low and the engine acceleration suffers. To fast and the engine will surge or miss at WOT or may hole a pistion.
Posted on: 6/12/2012 4:00 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11116032

RE: battery pack placement for ignition
Rule 1. Do ALL you can to prevent a RFI noise problem. NOT the minimum. Because sooner or later the laws of physics are going to bite you in the butt if you cheated.
Posted on: 5/29/2012 9:35 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11099422

RE: reduction starters
Miller has a package of a reduction starter and a 24v battery. It will turn over your Chevy
Posted on: 5/27/2012 1:49 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11096472

RE: Balance/harmonic issue
All singles vibrate, its the nature of the beast. Savvy designers can chose the rpm. Most of the chainsaw engines have a vibration node in the 3-4k range, but are smother at full throttle where they run for hours. I think that if you look at your engine you will see that you have added weight to the counter weight. In rare cases adding weight opposite does work. At the dawn of giant scale several people made good $$ "overbalancing" the Q35's
Posted on: 5/26/2012 9:25 PM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11095823

RE: Walbro WT456 conversion to 4-stroke
The WT 456 is a 4c carb, with booster spring. No mods needed.
Posted on: 5/26/2012 6:06 PM by Author "tkg" in the forum "Engine Conversions"
http://www.rcuniverse.com/forum/fb.asp?m=11095685

RE: Ignition system trouble shooting
[quote]ORIGINAL: DL8698 So the spark return path is the braided shield wire? I'm sure it works but I can't figure out why the high voltage high freq pulses passing through the shield won't emit emf interference, which the braided shield is meant to prevent. [/quote] Because its ground. Ground does not emit very well.
Posted on: 5/24/2012 12:12 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11093284

RE: DA 250 Twin Super Charged Four Stroke
[quote]ORIGINAL: octanehuffer If push rods are mounted on camshaft center line and actuated by lobes, how does this engine work? The push rods are mounted near the top of that box with the ''USA'' plate. I can't see lobes and lifters being under there. Not enough room. [/quote] If you look at the size of the pulleys, the cam and lifters are in the USA box.
Posted on: 5/19/2012 8:30 AM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11086760

RE: Brison 5.8 Cu 95cc
The ign is the easy part, its the new machined parts that will be harder and expensive.
Posted on: 5/17/2012 5:19 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11084954

RE: Zenoah G-62 or GT-80
Try a PM
Posted on: 5/15/2012 6:23 PM by Author "tkg" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11082292