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Post by speedy1125 on Apr 13, 2011 22:30:11 GMT -5
The box that has the kit in it, I can hear it going "vroom, vroom, vroom" inside its box, it must be trying to tell me something! haha  I accidentally filed the lower compression ring to .010 instead of .009..oops I dont think it will cause a problem...what do you guys think? This an ignition file, works great on small bore rings:   Put the ring in the bore and pushed the piston up to make it even.  Filed it then checked the gap..  Rings on the piston using a piston ring expander. Top ring has a silver edge around the perimeter, 2nd one is all black, to smaller rings on either side of the wavy ring.  Sorry about the fuzzy pics, my camera is old. |
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Post by 90GTVert on Apr 13, 2011 22:51:37 GMT -5
I think you'll be OK with the .010 gap.
All ready to install. ;D
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Post by speedy1125 on Apr 13, 2011 23:33:11 GMT -5
Man, digging through whats left of my shop to try and find salvageable tools is sooo depressing. I found lots of my wrenches and sockets, totally rusted and lots of other stuff. some it cannot be salvaged, anything with a plastic or rubber handle is gone.
As far as the rust, I plan to use electrolytic rust removal. Is anyone familiar with this?
there are websites and vids on youtube about "electrolytic rust removal" and quite frankly, its amazing..look it up. makes rusted up tools look new or near new.
I even saw a guy who made a tank so big that he put a whole trailer frame in it to get the rust off it, and this was no small trailer frame. I was amazed at the final result. you can use a 5 gallon bucket and a battery charger but be damn sure you educate yourself on how this is done, water and electricity together is well...you know. I will provide all details on how to do this in my rust removal thread when i get to that point. Also this must be done outside because a byproduct of this is hydrogen! BOOM!
OK since I am going to have this thing all apart, yall remember when i had glitter comming out of my gearbox? its back so i wanna do all this all at once. I want to put overdrive gears in the gearbox im going to put in thats on my bench, 31$ on ebay and looks low miles.
so what gears do i put in it?
-Speedy
OH- I just sold that other bike I had for sale so money is not really an issue here. I want to make it a sleeper that makes ppl go "damn!" when I pass them. =)
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Post by 190mech on Apr 14, 2011 5:00:41 GMT -5
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Post by 90GTVert on Apr 14, 2011 8:40:10 GMT -5
2.78:1 enviromoto.ecrater.com/p/10358339/stage-6-primary-gear-18-50-gy6-139qmb3:1 enviromoto.ecrater.com/p/10358337/stage-6-primary-gear-17-51-gy6-50-139qmbStock secondary gears are usually 52/15 (3.47:1). With the first set your final drive ratio would be about 9.65:1 and with the second it would be about 10.4:1. I think the stock primary gears are usually 16/52 (3.25:1) to put the stock ratio around 11.3:1. Just for some idea of the effects, I made a little table for ya. Remember, engine RPM doesn't actually work here, because of the CVT. You'd really need to know the RPM of the rear pulley for this to be accurate. Tire size will also affect MPH. This is done just using a 100/90/10 for reference. Again though, this might give some insight into the effects. | FD Ratio | 5,000RPM | 7,500RPM | 10,000RPM | | 11.3:1 | 22.62MPH | 33.93MPH | 45.24MPH | | 10.4:1 | 24.58MPH | 36.87MPH | 49.16MPH | | 9.65:1 | 26.49MPH | 39.73MPH | 52.98MPH |
I'm heavy, but I would stay with the lesser upgear (3:1). These engines just don't have tons of power to pull very long gears from my experience, but then again I was 300lbs or slightly over when I was messing with my 80cc GY6. |
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Post by speedy1125 on Apr 14, 2011 21:35:18 GMT -5
wow you lost me on that Brent
what should i get? the first link you posted or the second to enviro? I am 175-180lbs but i want the tallest gear possible.
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Post by speedy1125 on Apr 14, 2011 21:39:15 GMT -5
oh ok so the 17/51 is what you would recommend for a 175-180 lbs rider.
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Post by 90GTVert on Apr 14, 2011 23:41:04 GMT -5
If you just want a short answer, I feel like going with the 17/51 setup is playing it safer. When dealing with cars and motorcycles and things that have power to spare, gearing is a much simpler idea. When dealing with scoots that are basically underpowered, you have to put some thought into it to make the best decision IMO. There are more trade-offs for us. I really don't know what these things act like for (in comparison to me) a light rider.Maybe you could go with the max upgear, but I wouldn't. I don't mean to confuse you, but I also don't want to make suggestions to you without giving you an idea of what's up so you can try to make an educated guess at which one to go with. So, things to think about...
Power : Do you have enough? That's a tricky one. The best way I really know to judge that, is to see how it does with the current gearing with the new power. Assuming your CVT is in a good state of tune, if it seems like your scoot pulls hard all the way to max speed/RPM, upgears might be a great choice. If you really struggle with that last 5-10MPH, maybe just save your money and stick with what you've got. If you really struggle and acceleration in general doesn't please you, it's time for some deeper gears instead.
Acceleration vs Max Speed : Generally, the more potential for speed you have, the less potential for acceleration you have. As Newton said, for every action there is an equal and opposite reaction.
Average / Cruise Speed : I found that deeper gears actually increased my average and cruising speeds. I could reach higher speeds more reliably. I was more likely to maintain speed up hills, against the wind, etc...
Fuel Economy : I seem to get improved mileage from scoots with deeper gears versus those with highway gears. The reason being, I can use less throttle to get going and less throttle to maintain speed.
Again, these are from my experiences and I'm heavy. Sorry it's so much info, but again it's not just a matter of this gear works and this one doesn't. There is a lot involved and preference is a big part of it as well. It's creeping up on 1AM, and I've already confused you when I was awake, so I hope it doesn't get too much worse. lol
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Post by josh8178 on Apr 15, 2011 5:06:40 GMT -5
I think these scoots are pushing it at anything above 40mph, you're lucky if yours can do 45-50mph and depending on weather conditions (Here in the UK anyway) some days I can be doing 36mph, and others 43mph+. (The china speedo thinks Im going 52mph, haha, yeah right.) This is with a 47mm kit, I mean, I wasn't as precarious when I installed mine, I didn't check the ring gap, I just bolted it on and took it WOT up the road. I would like to try different gears, but round here we have hills that you would probably say are like mountains, and the engine doesn't have enough power anyway. Your piston/cylinder looks exactly the same as mine, so far it's been going for months and I've had no problems whatsoever. No clearance issues with the valves, and I'm on my second head because I stripped the valve cover threads on my first one. I never had a piston ring expander or any fancy tools to do mine, I just used my fingers  |
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Post by 90GTVert on Apr 15, 2011 7:13:48 GMT -5
That reminds me, more details you don't want Speedy lol... Hills would be a good way to judge your ability to handle upgears I think. Not mountains or really big hills, but maybe I should say inclines. If the scoot can't maintain speed on a long, steady, mild, incline... it's probably not gonna like upgears. It's basically the same effect, your engine is being asked to handle more load than normal on an incline just like upgears.
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Post by speedy1125 on Apr 15, 2011 8:38:43 GMT -5
That reminds me, more details you don't want Speedy lol... Hills would be a good way to judge your ability to handle upgears I think. Not mountains or really big hills, but maybe I should say inclines. If the scoot can't maintain speed on a long, steady, mild, incline... it's probably not gonna like upgears. It's basically the same effect, your engine is being asked to handle more load than normal on an incline just like upgears. I am going to skip the upgear for now because of the po po. I got pulled last night and the first thing the cop said when he got out of his "car" (really a blacked out chevy trailblazer) was "where is your license plate because there is no way thats a 50cc"! I said "you're right. it's a 49.5cc" He said "have you done any work to it?" I said "yeah see that fuel filter right there? thats new" he laughed and said, "you were doing well over 50 going down that hill (*not a major hill) back there, these are not supposed to go over 30mph on flat ground" I said "well we aren't on flat ground" He said, "ok but you were going 45 going UP the other side" I shut up over that haha. He goes, "do you have any documentation that says its a 49.5 because I have a really hard time believing that. I said "sure do just follow me to my house its just down the street." he didn't come. took my ID and went to his truck and sat there a min, came back, gave it back to me and said "Please dont go over 30, have a nice night". THIS is the reason I have not put an aftermarket pipe on it, I dont want it to look like its been modified in any way. At least I know how off my speedo is. when it says 60 im doing "well over 50" as he put it. lol. He was pretty cool about it. They love to drive around those blacked out trailblazers at night, really hard to spot. Funny thing is my id has been expired since my birthday on 11-25-2010, he didn't even mention that...dummy haha |
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Post by speedy1125 on Apr 15, 2011 8:47:56 GMT -5
If you just want a short answer, I feel like going with the 17/51 setup is playing it safer. Safer? what can happen? |
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Post by 90GTVert on Apr 15, 2011 8:48:00 GMT -5
If you're doing that kind of speed, I wouldn't bother with upgears either. Glad you didn't get in more trouble. I'm not sure what documents really prove anyway. I can show paperwork that says my Triton is 49cc with 2.7HP. The paperwork hasn't magically updated to say it's 103cc and capable of 70MPH. Engine markings still read the same too. Maybe they're right and I'm wrong.  ;D |
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Post by 90GTVert on Apr 15, 2011 8:51:30 GMT -5
If you just want a short answer, I feel like going with the 17/51 setup is playing it safer. Safer? what can happen? The scooter will self destruct in 5... 4...  Not really. The main thing that will happen if you go with too much upgear is that you'll be very displeased and realize you wasted your money and now have to swap again. With too much of an upgear, it will be a real dog off the line and it will require a lot of throttle to get to speed and possibly maintain speed so your fuel economy will suffer. Basically it just sucks. I guess you aren't really in much danger. If you put the engine under enough load, it can lead to overheating and eventually detonation. That's a real worst case scenario though. |
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Post by speedy1125 on Apr 15, 2011 9:00:30 GMT -5
The scooter will self destruct in 5... 4... Not really. The main thing that will happen if you go with too much upgear is that you'll be very displeased and realize you wasted your money and now have to swap again. With too much of an upgear, it will be a real dog off the line and it will require a lot of throttle to get to speed and possibly maintain speed so your fuel economy will suffer. Basically it just sucks. I guess you aren't really in much danger. If you put the engine under enough load, it can lead to overheating and eventually detonation. That's a real worst case scenario though. so the upgear raises the rpm? I thought it lowered the rpm. |
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;D