Excellent job making this video! Too many people just talk and talk and the video becomes too long. You did a great job editing, im going to take the governor out of my 79cc after watching this.
Very cool. You have the only step by step for the 79cc. Every other vid was 212cc. TY very much. I put a 79 on my antique Adultrike. top end is Awsome even w a 50tooth sprocket. but revs for torque wa sad. Not any more. I'm still ordering a 72 t aluminum sprocket blank from Azusa ($80 w shipping) (ouch) because I have a centrifuge clutch and 26 " wheels. Im 61yrs old and hate peddling 🖒✌
Hey I hope you havent ordered a sprocket yet. Here is one that might be cheaper www.ebay.com/itm/New-VINTAGE-Azusa-Heavy-Duty-Sprocket-35-Chain-70-Tooth-NOS/113095019684?epid=9020157100&hash=item1a54fd0ca4:g:eEwAAOSwiHZbFs4S
Once you remove the linkage from the governor control arm to the carb, haven't you essentially rendered the governor useless? Why bother to take it out of the engine at all? What does it hurt to let it remain and function as it normally does to move the governor arm, since the governor no longer controls the engine speed? Great video, and helpful for getting the governor parts all removed.
If you don't remove the gear the increase in rpm can cause the plastic gear to fail. Last thing you want is broken bits running loose inside your engine
I put the same motor on a beach cruiser still have the governor though I don't think im going to remove it since I can't find a billet rod for the 79. You should do a motorized bike build they're fun. On the 2 stroke you can do alot of power mods.
Nice. I recommend taking the governor out. It will cause no harm. No one sells billet rods for the 79cc yet. I have already built a motorized bike and yes I miss mine. BUT, I am considering bringing it back ..
That gasket sealer will squish out of the joint....into the crankcase. You will have large enough pieces of sealer flying around in the crankcase, where they will jam up in the compression release so it cant function. I have seen this happen on more than one predator. Sorry for the bad news.
One question. I’m building a Hard tail mini bike for the kids. I did install the 79cc HF engine. For riders under 100 pounds will it be sufficient ? They’ll be riding around the yard mainly flat ground on grass. I was going to do this removal but only if it’ll gain me some pull off the start . Not interested in top end for them .
Y-Z-2-Fitty the 79cc motor has very weak torque. Ungoverned, I it pulls hard up top. Honestly it should suffice and be plenty of fun. Once they grow out of it you can always remove the governor and add an exhaust.
YZ...gear it down past 6:1 ratio and let it rev..fit a centrifugal clutch with some stiffer springs in it so it revs up higher before engauging or fit a tourque convertor...Trev New Zealand 🇳🇿
I just went on a 70 mile trip haha. I Actually think its the other way around. Gasket is thin, rtv is too thick. Which takes up some of the crank shaft play that is necessary. But there is lots of it to begin with so it is fine
Now that the governor has been removed... is it necessary to replace the flywheel to a Billet flywheel.... do they even make one for the 79cc engine...
two things first i like how the motor is built , second you dont understand the true purpose of the govener its to protect the motor from over reving on rpms and keep it from over heating . i just hope it doesnt cause engine damage .
Richard, protection of the engine is a nice side effect. The purpose of governors is to keep the rpm in the optimum range. When the work load causes the rpm to drop the governor pulls on the carb linkage to give it more gas and vise versa. Removing it, or disconnecting it allows you to control the engine speed freely, like s normal engine.
Tim , Yes...it's a roll of the dice unless you can be trusted to hold revs to what's called "design overspeed" & that's about 5,000rpm. Trev New Zealand 🇳🇿
Why if I am having very bad idling like won't at all .. and I just took the governor arm loose I did not take the governor actually out I just took everything loose from the governor arm
@@trevinskiking2165 if the engine needs more air than the heads and cam will provide, the power curve will be flat, or decrease, even if it revs higher. I don't think this engine is flow limited.
That video was a big help in removing the governor how ever I noticed that you mentioned that there was no oil sensor but mine has one. Everything went back together fine but know I have no fire to the plug. any suggestions on this problem anyone?
If you removed the sensor, you have to connect the kill switch to the plugs that the sensor was connected to. The oil sensor is just a N/C switch, so when oil is in there, the circuit to ground opens up and lets the spark fire. The way the stop switch works is by shorting out the ignition on the case, before the discharge reaches the spark plug. Mine has that sensor, and I just took my kill switch and put it's barrels into the oil sensor's former barrels.
I saw on another RU-vid video that the guy used the govenor arm still,but he cut off the paddle part so he didn't have to modify the throttle, that's what I am going to do on mine.
You mean that pin thing.. i did but someone else came off... and watching the "right way" to do a full removal your supposed to take the whole motor apart remove flywheel pull start etc and if you do that its just a screw/pin take it off and push the Governor gear right out easy. But than you have 2 holes to plug and have to hope you dont break flywheel or mag
little more scary then i thought it would be , that aint like the old ones i did . thats like a inertia switch . i thought they all had the flywheel wind flapper . im scared lol im kinda caveman
I have a question about the predator 79cc. I want to put a straight exhaust pipe instead of muffler and I want to install a high flow air filter. A friend of mine said that the stock carburetor won't work with that setup and that I need to get a performance car. Is that true?
Ok so I have a similar motor, its a 78.5 CC GasBike Monster 80 motor. Just to check before I go for this, is the process generally the same across the motor styles? And good video, already have this bookmarked for when I get ready to do so on mine.
Yes exactly the same. Although sometimes these engines have variations. The older 79'ccs had a plastic cam and a different color governor gear. But they are all made by the same factory. Good luck!
Ok i did mine today, now be honest did you edit out 5 minutes of you trying to remove that ring????? What a pain that was for me i finally resorted to a kitchen knife... lol Mine has a oil sensor i am just not going to hook it up and just leave it in there. I will fold the wire 3 times and put a heat shrink wire sleeve on it. I am doing a video on it because i have the gasbike motor only difference from predator is the name and the throttle body as the gas bike branded engines these places sell has the cable stays in place for throttle cable and a spring to return to idle already in place. So i am doing a mod video on how to hook up linkage once gov arm is removed as it is different then your predator. I also tell people to come here to find out how to remove the governor. I should be done with video in a day or two..
Haha Yes I did edit that out, those are a pain in the Ass i did a predator 212cc governor and it was a bit harder. Just get a flathead driver and hammer the ring until it deforms. Hope you figure out the throttle. Thanks!
Tiny951 Since it is a relatively short rod, I don't think it will break if running high rpm. But I run 15w-40 oil just to be on the safe side and have no problems with mine
Does anyone know what the repercussions are for accidently removing the metal pin/piece the sits in between the governor sprocket? I know that the sprocket and the plastic/meal clips need removed but that leaves the metal pin that sit between the sprocket... I got trigger happy and the entire assembly came loose, is there a way to fix this because now I have a hole in the crank case and dont know if I ruined my engine or not...
Soooo, I did this, and I see no difference in speed or power for me. Actually, it seems to be alittle weaker for some reason. I have it on a 2004 Mosquito Hawk 4X GoPed. Then again, the cam fell out and I had to time it all again. But it's all correct.
@@Mason-Dain Well i commented this a year ago with very little knowledge on building these engines. I more than likely lashed the valves wrong cause i Didnt use a lash tool then 😂 i was a dummy. It's totally worth removing GOV but you're going to need to toss 18lb valve springs in so you do not float valves at higher rpms. I now have a pretty built 79cc. Pushing 7hp. I also have been through 4 engines from learning 😂.
Don't get it from harbor freight because there's no throttle linkage for a motorized bicycle set up,. Gasbike.net has these engines for $119 with the throttle linkage,and if you want a better torque converter,get a 212 belt drive and use a 5/8i.d. x 3/4 o.d converter sleeve with a 3/16 step key and the belt drive will fit ,you might need to file the step key a little bit to make it fit right in,the chain drive that supposed to go with these 78.5 cc predator engines are not that good because the chain constantly breaks,you would have to replace it with a #41 chain and use a #41 for your drive chain also !!!
Vasily Custom Builds SUCCESS ! It is actually a closed C-clip and not an O-ring. I could not break the C-clip with a flat screwdriver so I borrowed a chisel from a friend and I broke the C-clip. Yes, I removed the washer under the governor wheel as well. Hope that helps someone. Now to clean the debris, I thought of using a hose to flush it with water and let the engine dry in the sun, but Im worried there is a yellow wire and magneto-something inside the crankcase. Any tips?
The yellow wire I was talking about is connected to the oil sensor inside the crank case. So YES, the newer 79cc Predator engines do come with an oil sensor. Now I have to figure out how to remove/disable the oil sensor. The yellow wire goes from the oil sensor to the kill switch. Can I just cut the yellow wire? . Or can I bypass the kill switch on the engine and use an external switch?
With that much sealer, you are bound to get 1/2 of it ''at least'',, in the engine, - past the mating surfaces,, ''not good''... ………... Less is better. You just need a small film. I was a Master mechanic for 40+ years. I74
@@ponylifestyle5995 Got you! A governor bottle-necks an engine and makes it rev very low. *A governor is basically like a rev limiter* By removing the governor, I was able to rev the engine out much more and gain 2 horsepower. It is rated at 2.5 horsepower from the factory
@@VasilyBuilds yes more hp only if it get a carb and exhuast and carb upgrade itll be more noticeable.stock wise you wont feel it until you past the factory 3800rpms
Std valve springs are a built in rev limiter...if you know enough about engines you can swap them out yourself & what pressure would you run clever clogged ? Trev New Zealand 🇳🇿
I changed my name from the one below and posted my throttle linkage mod video also told people to check this out for governor removal... It's the only video on my new channel go check it out😎
I'm no expert, obviously because I'm here watching this, however, theres gotta be a less brutal way to remove this. Wont be doing it by breaking shit. Pass
Yes fully take apart the motor. Both sides. BUT this is very hard and takes more tools removing flywheel and mag is not easy if you hit it to hard or pry it to hard it will blow up on you later on. However if you make it past that part its a simple clip screw take it off and push the Governor right out plug both holes put back together and hope you got it right lol. Doing the way showed in the video is just fine and will work. Just be careful when breaking gear out
All this destruction, wasted time, poor education and simple nonsense adds you 0.00HP. You get more revs but the torque peak on this monster 79cc engine is nil at higher revs. THIS is what someone is teaching YOUR kids.
