Zenoah tuning advice  
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All Forums >> RC Cars, Buggies, Trucks, Tanks and more >> RC Giant Scale Cars >> Zenoah tuning advice
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Zenoah tuning advice - 4/23/2005 10:24:28 AM   
BIGFOOT DRIVA


 

Posts: 40
Joined: 3/11/2005
From: west bromwich..........BIRMINGHAM, UNITED KINGDOM
Status: offline 		hi to all fg owners and bashers,

I'm a newbie to the fg and 1/6th scale,
Can any1 help me with tuning the zenoah 26cc engine in my bigfoot? i.e wat to look for in lean or rich settings.
At the moment i.ve done 3 tanks on factory settings and i can slowley feel the power coming to the engine but need help in final/race adjustments can any1 help me please? thanx

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MT-5,ALLY FRONT BULLBAR & ALLY FRONT SKIDPLATE,NEW MONSTER REAR BUMPER & WHEELIE BAR,FG 3pc TUNED PIPE,FRONT DISC BRAKES,2Sp
       Post #: 1

RE: Zenoah tuning advice - 4/23/2005 12:39:19 PM   
OLD_SLOW and in the WAY



Posts: 1397
Joined: 8/22/2002
From: , OR, USA
Status: offline 		make an extended run mostly at high speed then check plug immediately... it should be a dark toasty brown to a tan color. if the engine burble at idle low speed turn the lo speed needle in a tad till it clears up ... (tad equals 1/16 turn)

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OLD...SLOW
AND IN THE WAY

(in reply to BIGFOOT DRIVA)
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RE: Zenoah tuning advice - 4/23/2005 3:46:27 PM   
original.mb


 

Posts: 2098
Joined: 1/1/2005
From: northern, UNITED KINGDOM
Status: offline 		your engine should bed out approx. on the 5th tank after that its upto u? tinker with 'l' speed needle but personally i would leave it as a rich engine means longer life more runs

cheers

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As long as its LARGE-SCALE who cares what you drive!

(in reply to OLD_SLOW and in the WAY)
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RE: Zenoah tuning advice - 4/23/2005 5:25:22 PM   
mrfisse


 

Posts: 69
Joined: 2/21/2005
From: Loddekopinge, SWEDEN
Status: offline 		start with tuning the high speed needle start out somewhat lean,not to lean though because the engine don't like that
and then start turning the needle out wards really small steps until you feel the car wont accelerate out more in the high rpm ranges. There should also come a little smoke when throttling aggressively. No smoke often means that your running to lean. Then go over to the low speed tuning needle. Start with the car to rich here almost to the point where it dies. Then start turning the needle in wards small steps and after each time do a acceleration test and you will see if it goes slower or faster then before until it reaches the high rpms. Continue this procedure until you're satisfied (what you should be looking for is a smooth and even acceleration curve through the entire rpm range). You will notice difference after really small movements so have patience when tuning in the engine. Also make sure the engine is warm before you start doing this otherwise it will come out like dog ****. Also make sure your filter is clean and your spark plug is healthy. And run 2 more tanks, 3 tanks is almost to little. I know my engine characteristics changed pretty much during the first 6 tanks.
Best of luck !

< Message edited by mrfisse -- 4/23/2005 5:26:49 PM >


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FG Monster Truck (Big Foot)

(in reply to original.mb)
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RE: Zenoah tuning advice - 4/23/2005 5:39:45 PM   
dazzahughesuk


 

Posts: 1499
Joined: 8/6/2004
From: Beds, UNITED KINGDOM
Status: offline 		Hi ya, I don't know if this is any help....

Tuning Zenoah engine.

The biggest pain in the arse, behind piles has got to be engine trouble. Looking at the size of the Zenoah you would think that there can't be that much that can go wrong to them, well think again. I suppose once you know your way around them things get a bit easier, but Ive seen some experienced people left baffeld. What we aim to do here is cover all, or most of the common problems assosiated with the Zenoah and Solo engines. Hopefully we can help you out with this infomation.

MIXTURE SETTINGS.
Zenoah G230 RC H 1.1/2 turns L 1.1/4 turns
Zenoah ZG22/G2D H 1 turn L 1 turn
Solo H 1. 1/2 turns L 1.1/4 turns
These are the factory settings on the mentioned engines. They are set according to local conditions. This is depending on the air filter, exhaust and climate conditions. Use the above settings as a starting guid line and depending on what your engine set up is, you will probally have to make some slight adjustments.
BASIC CARBURETOR ADJUSTMENT.
As I said earlier, the standard settings are just a guid line and most carbs have to be adjusted, If you feel that your no-load (L) or your full load (H) screws are completely misadjusted, then carefully close both screws. Then turning them anti clockwise follow the settings that are listed above.
STARTING A COLD ENGINE
Always make sure the throttle is in the closed position. Now apply the choke which is on the carb on the solo and Zenoah G230 or on the air filter on the earlier Zenoah engines. Press the primer pump located on the carb until the pump is full of fuel, this you will be able to see. Pull the handle until you hear the engine try and start, this usually takes 2-4 pulls. When you reach this stage, open the choke and give another couple of pulls. This should start your engine.
STARTING A WARM ENGINE
Make sure that there is fuel in your primer cap and that the choke is open, then pull cord.
BEFORE YOU START
Before you start to tune your engine there are a couple of basic things that you should check first. Firstly make sure that your spark plug is in good condition. You do this by simply scewing it out of the cylinder and checking it, if the electriod looks too oiled up then change it as it will make things a lot easier. Most plugs come with the gap pre set but it wont hurt to check to make sure its right. Secondly make sure you have enough fuel as it soon runs low with all that testing and reving, also make sure that your filter is on nice and secure with no possibilty of air leaks. And lastly make sure your batteries are nice and charged. Let us begin!
BASIC TUNING
This is based on the assumption that your car starts but is not runing right. Firstly make sure that you have the mixture settings set to the factory settings. This is quite important at this stage. Then Screw the idel scew in till it bites on the spring that it is set in, then give it one more full turn. Doing this should keep your revs up once you have pulled the starter and got her going. Before you pull the starter make sure your radio is on and working. Pull the starter and after a couple of pulls she should start, if not then you may have a problem which we will cover in our trouble shooter section. Whilst the car is running you will be able to tell if the engine is reving to high just by listening to it. If it is turn the idel screw out slightly(anti-clock wise), only slightly as the engine is still cold and does need to warm up, it is pointless trying to tune a cold engine. Drive the engine until it reaches working temperature. If you notice that the engine decelerates during acceleration, then your engine is running too lean. To rectifie this the no load screw L should be turned anti clockwise. Imagine the screw being a clock, then your adjustments have to be made in 5 minute turns, in other words very small movements. If the engine revs up slowly and runs rough under clouds of smoke, this means you are probally running with an over rich mixture. In this case you should turn the no load scew in clockwise by 5 mins at a time until you have rectified the problem. Run the car repeatedly making minor adjustments until you are happy with the way it is performing.
MAXIMUM REV RANGE
In order to adjust the maxium range of speed, lift the rear wheels and rev the engine shortly at maximum revs. Now you can adjust the Full load screw H to the left to lean off the mixture or to the right if too rich.You will hear the engine reaching its peak revs and you can also notice when it starts to loose the peak. The best way to tune your car is to run it on a track or field and make your adjustments after each run. Remember to make very slight adjustments at a time, this way you will see your improvements a lot better.
POINTS TO REMEMBER
When tuning your engine, after every run make sure you check the bubble on the carb. If this is empty after testing then this means your engine is too hot and running too lean. What you should be looking for is a full bubble or nearly full at least.
TOO MUCH SMOKE
You should also be aware of your engine if it smokes to much, this means it is running too rich and is getting too much fuel. To adjust this turn your L screw in by 5 mins, remember imagine that the screw is the face of a clock, small adjustments is all you need.

...this was previously said on here and posted by someone on here.

Darren

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-Darren-
Hormann HT2 Race Evolution owner

(in reply to mrfisse)
       Post #: 5

RE: Zenoah tuning advice - 4/25/2005 11:13:50 AM   
BIGFOOT DRIVA


 

Posts: 40
Joined: 3/11/2005
From: west bromwich..........BIRMINGHAM, UNITED KINGDOM
Status: offline 		Thanks for that info dazzahughesuk,

wicked piece of writeup...once again thanx...speak to u soon m8

ALSO A BIG THANX TO fastrat porting service, Veron, mrfisse, i will wait for atleast another 4 tanks b4 i tune it up...cheers lads




< Message edited by BIGFOOT DRIVA -- 4/25/2005 11:22:47 AM >

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MT-5,ALLY FRONT BULLBAR & ALLY FRONT SKIDPLATE,NEW MONSTER REAR BUMPER & WHEELIE BAR,FG 3pc TUNED PIPE,FRONT DISC BRAKES,2Sp

(in reply to dazzahughesuk)
       Post #: 6

RE: Zenoah tuning advice - 4/25/2005 11:47:31 AM   
original.mb


 

Posts: 2098
Joined: 1/1/2005
From: northern, UNITED KINGDOM
Status: offline 		wow dazzer

that is a nice detailed list of things to do and check u have deffinatly done your homework i'm impressed has your mb arrived yet mate?

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As long as its LARGE-SCALE who cares what you drive!

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       Post #: 7

RE: Zenoah tuning advice - 4/25/2005 4:02:18 PM   
dazzahughesuk


 

Posts: 1499
Joined: 8/6/2004
From: Beds, UNITED KINGDOM
Status: offline 		No not yet. Wednesday! have sent money off to Paul @ Effective Tuning.
Can't wait.
Darren
quote:

ORIGINAL: Veron

wow dazzer

that is a nice detailed list of things to do and check u have deffinatly done your homework i'm impressed has your mb arrived yet mate?



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-Darren-
Hormann HT2 Race Evolution owner

(in reply to original.mb)
       Post #: 8

RE: Zenoah tuning advice - 4/26/2005 12:33:59 PM   
original.mb


 

Posts: 2098
Joined: 1/1/2005
From: northern, UNITED KINGDOM
Status: offline 		dazzer

sounds good mate, did you get a good package price from effective tuning?

cheers

_____________________________

As long as its LARGE-SCALE who cares what you drive!

(in reply to dazzahughesuk)
       Post #: 9

RE: Zenoah tuning advice - 4/26/2005 3:50:06 PM   
dazzahughesuk


 

Posts: 1499
Joined: 8/6/2004
From: Beds, UNITED KINGDOM
Status: offline 		Paul did me a special price...£510.50 delivered + i ordered a Pitstop Tuning (Twin Air) air filter and also i won a set of sealed bearings set (for being the first member to register on EffectiveTuning.co.uk oh and some stickers

Sound like a good price. I know i could of get it from hobbytek or from the US, but i wanted to get it from the UK, as there was not that might of a price difference once you inculded the P&P and tax etc...

Darren

quote:

ORIGINAL: Veron

dazzer

sounds good mate, did you get a good package price from effective tuning?

cheers



_____________________________

-Darren-
Hormann HT2 Race Evolution owner

(in reply to original.mb)
       Post #: 10

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