lifted club cars - lifted ezgo
Home FAQDonate Who's Online
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas Yamaha
Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



Post New Thread  Reply
Thread Tools Display Modes
Unread 11-27-2010, 04:53 PM   #51
Gone Wild
E-Z-GO
 
Join Date: Sep 2010
Location: Decatur,IL
Posts: 553
Default Re: The CLONE engine setup & specs thread

I know it's been a month since you posted here, But if you go to Bob's 4cycle .com and the then to the Open forums or the overhead valve forums there are several guys who can help you with the carb problems. Dover Power, Gecker racing,ARC, shoild all be able to give some advice. Under the overhead valve forums ,clones, Minidragbike should be able to give some usefull advice. The idea screw needs to be warmed up before you try and remove it. Stout shold have a replacement for it that won't break
rokcrlr is offline   Reply With Quote
Alt Today
BGW

Golf car forum Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum
   
Unread 11-28-2010, 12:24 AM   #52
Not Yet Wild
 
Join Date: Oct 2010
Posts: 65
Default Re: The CLONE engine setup & specs thread

also i have been building these clone engines for about 5 years now so if you have any ? about how to get more power or what this or that will do i can help. i hope im not gravedigging this post. sorry if i am but id like to help if you need it(as far as making more power). unfortunatly ive never put one in a golf cart just minibikes and go karts but the theory is still the same. also for your carb issue id suggest you do go with the slide carb(motorcycle style)they are much easier to tune and seem to be more reliable. heres are some pics of the mikuni from my gx 160 clone on my minibike. if you do though buy a large jet kit(my carb went from a #98 main jet to a #132 so it was a HUGE leap from stock) also i should mention that the carb came off a lifan 200cc 4 stroke dirtbike clone with a 5 speed.
Attached Images
File Type: jpg S5035159.jpg (63.0 KB, 70 views)
File Type: jpg S5035160.jpg (56.7 KB, 62 views)
DustyWolfe is offline   Reply With Quote
Unread 01-28-2011, 07:00 PM   #53
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 14,949
Default Re: The CLONE engine setup & specs thread

Thanks for the tips guys not sure how I missed this I've been around here. I heated the idle mix screw with a solder gun it came right out. Put the new one in and didn't realize they are that thin under the head where they break. One wiggle and it snapped off, lucky I had it adjusted pretty close then but should get another. Maybe I could fill it with solder or like you said buy a real one.

I have to get back on this soon and buy my engine. I do get on a 4cycle forum they just don't talk about the large single much only the GX160/200 mostly but I keep an eye on them. Did do more digging around and got conflicting answers about running a cam, precision says they have a mild one but another place says if I need it to take off at 2-2.5K where the clutch is shifting then the stock cam may be the best bottom end. He suggested I try other things first, also says a cam means rod and flywheel ($$$). The issue is they run at 2500 when you are climbing hills and stuff, so you don't want to lose that unless you can clutch it up more and this stock clutch is not so nice for that. So my plan is:

Port the ugly bowls in the heads, deck it 40 thou think can still run regular(?), advance the timing maybe 8 degrees, try to find a larger motorcycle type carb and mounting for it, make a 1" header to the car muffler (very quiet one) I'm using, the next stiffer set of valve springs and maybe (?) a guide plate and pushrods, drill holes and tap in top of head and crank cover for pulse fittings and hope one works without oil flooding, plus governor removal and I have to cut the crank down. Assuming it runs around 4500 now, maybe that will be enough to get over 5K. I'd like to be over 5500 but we will see maybe next winter I would pull it and try harder if not. They seem to say 6K is flywheel limit unless you get a real honda wheel. Dont know what difference that stuff will make, I'd love to drop a cam in just not sure what way to go. Most of the time we are on the clutches and don't wind them out that often.

I jetted this one huge compared to stock, a large difference. It ran good 98% of the time once in a while it would miss twice on a corner or something. Then it went into winter storage and I had too much stuff to do to go mess with it more. It would have been fun in the snow I bet, though even the stock engine spins a lot. A set of huge mud tires might help.
sho305 is offline   Reply With Quote
Unread 04-05-2011, 02:01 PM   #54
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 14,949
Default Re: The CLONE engine setup & specs thread

I'm still working on this. Yes DustyWolfe that is exactly the intake I need lol! I found one for a scooter that is similar trying to find out the hole centers. I found a carb that might work a Keihin. I finalized my plan to:

Remove governor and cut crank
Deck head .060 I'm told will still run regular
Port bowls in head
Run 4 degree advance I was told
Big airbox and muffler flow
Trying to nail down this intake and 28mm flat slide carb
Not sure if I need valve springs or a shim or not, hope for 5500rpm or under 6K.

Found another engine little cheaper than the CS but not sure I want to mess with it, I can get CS here next day and it worked well so far.

I get on the 4cycle forum but they don't talk about the big block (13/16hp) that often only for radical built ones. The problem is the flywheel you really need to replace it for 6K rpm and more. I did find a couple torque cams for under 6K, would need rod and valvetrain for those. With this cart I really don't need it, need reliable and just a little more rpm. Try to get this done and get into another cart I can get more radical with.

I also heard harbor freight was going to have all new engines that are different.
sho305 is offline   Reply With Quote
Unread 04-08-2011, 06:03 PM   #55
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 14,949
Default Re: The CLONE engine setup & specs thread

I think the intake I found is not the right angle I need. Have to look elsewhere. It could be made to work but for the cost of finding someone to TIG it back together I'll keep looking. That intake is a 30mm for a palini vespa scooter, but it angles up too high and I don't know if the bolt holes are right.

But I bought some stuff for the cart today got relays and wiring to finish the ignition on both carts. If I can nail down an intake I'll order the carb and timing key/etc. Was told the 30mm flat slide carb is big enough for a stock gx390 no problem. I'll start a new thread in big block once I get moving on this next cart.

This intake: http://www.sip-scootershop.com/EN/Pr...S+2430mm+.aspx
There are similar ones but this one you could move the holes in the flange some. If you cut the flange off seems like you could weld it back together at right angle. This way the carb is over the bolt it would be kind of high.
sho305 is offline   Reply With Quote
Unread 06-11-2011, 01:27 PM   #56
Not Yet Wild
Yamaha
 
Join Date: Apr 2011
Location: West Michigan
Posts: 46
Default Re: The CLONE engine setup & specs thread

Hey guys I will be swapping a Duromax 16hp into my G2 over the course of the next few weeks and got some questions about setting everything up.

First off I am wondering how you guys setup the stock generator/starter setup as far as where I can add a pulley for the belt and how to go about doing it??

Another is governor removal and RPM. I can get this taken out and what not to problem. I'm just wondering with it removed if there tach setup or something with limiter I can setup later. I would just leave the governor on it if I could get 20mph out of it but if this is anything like my sisters clone I dont see it happening as hers cut out at 15mph stock. So pretty much I need to see about getting it to cut out later on at a higher RPM than stock but don't think I want to leave it totally uncorked if I can help it. It looks like some guys are running without the governor with no issues but I rather be safe than sorry.

Exhaust now. I'm thinking of using the stock tube that comes off the head and cutting off the rest of the stock part and adding something in later. I would like to keep it as quiet as possible without killing power so I'm thinking a small car muffler is going to be the way to as I see a few guys on here had good results like that so far.

Thats all I can think of right now but I know I'll be back later with more.

If you guys can give me any input and suggestions on this stuff so I can get it under way it would be greatly appreciated. I was going to wait to do my swap until winter time so it wouldn't be down for summer but my stock motor died last Saturday. =\
tenaciousj is offline   Reply With Quote
Unread 06-11-2011, 08:29 PM   #57
Gone Wild
Yamaha
 
Join Date: Aug 2009
Location: Galveston,IN
Posts: 386
Default Re: The CLONE engine setup & specs thread

I too am going to be going this route for the cart i just got with a dead engine.
I would like to hear about what kind of mufflers are being used to keep these quiet?Could the original Yamaha muffler be incorporated?
Sho ,did you ever get the wiring figured out so the factory pedal controlled the ignition?
I would like the cart to work like a factory one when other people drive it.That way I don't have to give special instructions when they drive it.
I hope to purchase my engine next week if things go good.
jackel440 is offline   Reply With Quote
Unread 06-12-2011, 10:31 PM   #58
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 14,949
Default Re: The CLONE engine setup & specs thread

Yes the stock gen will start it just fine, you need a stock or stock replacement clutch with a pulley on it....or you can mount a pulley on the flywheel but have to figure out how to reverse or mount the gen that way. A G1 gen will start reverse but I don't know the difference to one that does not. Most motors you have to change the timing for the direction it runs. You leave the stock wiring just take the ignitor and coil out. I have a relay to put on the hot to the ignitor and have it ground the clone when off, that should kill it. So far its running with the idle shut off but its not really safe if the throttle stuck. He didn't put it on seems to be waiting for me to do it lol. You might also mount a pulley behind the clutch, but in a G2/9 there is little room. It might fit if you take the recoil off but then the carb might hit.

There is another thread in big block have to find it, guy used a walker muffler said it was quiet its round with a side inlet. Small car muffler can work. You can look for a 16hp or larger lawn muffler but most are not that quiet just like a lawnmower. A stock G9 muffler will slow it way down I imagine they hardly flow enough for a stock 9hp.

If you don't have a lift I would just tweak the governor by shortening the spring or ziptie some of the coils in it together. I don't recommend going without unless it has a rev limit in the ignition. Because they hit higher rpm with no lift or high speed gears, they are geared so low. You add a few hundred rpm and it gives you like 1 mph more its pointless. Get gears or big tires if you want fast, you will just destroy the engine with high rpm. With gears or 22s at least it puts a load on the engine and they are pretty good long as you don't floor it down a hill and over rev it. It is a good idea to put a rev kit in, you can get valve springs for the clones cheap that is most of what they list for them. You can get a tinytach or equus.

We did use the flange off the stock muffler on a G9, then 1" pipe welded on and threaded a 90 on. All you have to do is file the bolt holes out a little and it fits the head.

I was on the clone yesterday and held the brake at about 25% throttle then floored it and let off brake, it actually spun the tire over the length of the cart on a gravel drive. 22x11 trailpros. I think my stock G9 will spin about 2" there if I do that. It was kind of wet, not dry stones. I wanted to get some video but the weather was terrible and then we had projects that had to get done.

The carrolstream clone I used does not seem to have any rev limit in the ignition, but it does lose power up there quick. Some say the 13hp clone will rev higher. The 16hp is just a stroked 13, and I doubt it is really 3hp more, but has more bottom end torque. They say they run out of beans about 500rms lower than 13hp will, they being kart racers. I'm going to cut the head and advance the timing and see if I can get a little more that way. Another guy on here blew a 16 and put a 13 in and said he could hardly tell the difference, thought it might be faster.
sho305 is offline   Reply With Quote
Unread 06-13-2011, 08:35 AM   #59
Not Yet Wild
Yamaha
 
Join Date: Apr 2011
Location: West Michigan
Posts: 46
Default Re: The CLONE engine setup & specs thread

Quote:
Originally Posted by sho305 View Post
Yes the stock gen will start it just fine, you need a stock or stock replacement clutch with a pulley on it....or you can mount a pulley on the flywheel but have to figure out how to reverse or mount the gen that way. A G1 gen will start reverse but I don't know the difference to one that does not. Most motors you have to change the timing for the direction it runs. You leave the stock wiring just take the ignitor and coil out. I have a relay to put on the hot to the ignitor and have it ground the clone when off, that should kill it. So far its running with the idle shut off but its not really safe if the throttle stuck. He didn't put it on seems to be waiting for me to do it lol. You might also mount a pulley behind the clutch, but in a G2/9 there is little room. It might fit if you take the recoil off but then the carb might hit.

There is another thread in big block have to find it, guy used a walker muffler said it was quiet its round with a side inlet. Small car muffler can work. You can look for a 16hp or larger lawn muffler but most are not that quiet just like a lawnmower. A stock G9 muffler will slow it way down I imagine they hardly flow enough for a stock 9hp.

If you don't have a lift I would just tweak the governor by shortening the spring or ziptie some of the coils in it together. I don't recommend going without unless it has a rev limit in the ignition. Because they hit higher rpm with no lift or high speed gears, they are geared so low. You add a few hundred rpm and it gives you like 1 mph more its pointless. Get gears or big tires if you want fast, you will just destroy the engine with high rpm. With gears or 22s at least it puts a load on the engine and they are pretty good long as you don't floor it down a hill and over rev it. It is a good idea to put a rev kit in, you can get valve springs for the clones cheap that is most of what they list for them. You can get a tinytach or equus.

We did use the flange off the stock muffler on a G9, then 1" pipe welded on and threaded a 90 on. All you have to do is file the bolt holes out a little and it fits the head.

I was on the clone yesterday and held the brake at about 25% throttle then floored it and let off brake, it actually spun the tire over the length of the cart on a gravel drive. 22x11 trailpros. I think my stock G9 will spin about 2" there if I do that. It was kind of wet, not dry stones. I wanted to get some video but the weather was terrible and then we had projects that had to get done.

The carrolstream clone I used does not seem to have any rev limit in the ignition, but it does lose power up there quick. Some say the 13hp clone will rev higher. The 16hp is just a stroked 13, and I doubt it is really 3hp more, but has more bottom end torque. They say they run out of beans about 500rms lower than 13hp will, they being kart racers. I'm going to cut the head and advance the timing and see if I can get a little more that way. Another guy on here blew a 16 and put a 13 in and said he could hardly tell the difference, thought it might be faster.
I do have a lift, I'm at 4" right now with 22" tires. Where would I find the parts for the rev kit? If I take the governor out I wont do so unless I got some way to keep it from over revving. I'm just not sure how to go about it yet.
tenaciousj is offline   Reply With Quote
Unread 06-13-2011, 02:05 PM   #60
Vegas modded 420
 
sho305's Avatar
Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 14,949
Default Re: The CLONE engine setup & specs thread

Quote:
Originally Posted by tenaciousj View Post
I do have a lift, I'm at 4" right now with 22" tires. Where would I find the parts for the rev kit? If I take the governor out I wont do so unless I got some way to keep it from over revving. I'm just not sure how to go about it yet.
Places with parts are like affordablegokarts.com and NR racing. Look for clone parts for the GX390 (clone of older honda 13hp). They have kits for them, the cheapest one has the springs in it that is all they list so likely all stock one needs. Note that the flywheel can come apart on these so they recommend an alum one if you put a cam in. I don't think they will hit 6K with the stock cam. The stock one I put in you could hold it on the floor and it went 27gps, my stock cart on that dirt drive will do 28gps. Since it has broken in I think it goes a little faster so its about like stock with 22s, and that is with them aired up I put 15psi in mine they grow. I can hit 30gps on a road on the level. The clone has a lot more power but after about 25mph it just lets right off. It has no governor at all on it, neither does the stock G9, and is the clone I put in earlier in this thread. Like I said you might want the 13hp clone if you want more rpm.

The idea with the rev kit is to make it live to where the cam pulls. This 16 falls on its face around 4500rpm. Another guy on here went a mile down a road and video his tach hitting 5500. This might I never went that far WOT, but I doubt it. Some people stuck rods so we never held it on the pins for very long while breaking it in, and it took much of the summer before it loosened up. The owner is on it all the time so I don't get to run it much lol. I had my gps there last weekend but weather was nasty and ran out of time. I did get to spin the tires with it a couple times, that was fun.
sho305 is offline   Reply With Quote
Reply
Go Back   Buggies Gone Wild Golf Cart Forum > Golf Cart Repair and Troubleshooting > Gas Yamaha


Thread Tools
Display Modes


Similar Threads
Thread Forum
The Chinese Honda Clone Thread Big Block Talk!
Club Car engine install/clone engine help Gas Club Car
Clutch Bolt Thread Specs Gas Yamaha
What Volt specs. from a 48V setup Electric golf carts
Clone Engine Big Block Talk!


All times are GMT -5. The time now is 07:05 AM.


Club Car Electric | EZGO Electric | Lifted Golf Carts | Gas EZGO | Used Golf Carts and Parts

Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.