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Post by jhobe6678 on Oct 10, 2014 8:50:16 GMT -5
Btw, I cleaned and sealed the intake and reed block on your scoot with the same sealant we use on cases so no need to mess with it. Sweet! I was thinking of the reed valves, if I should upgrade or not. I ordered new gaskets just to have them around, I like to keep some spares of stuff like that just in case. But I'm not messing with that part for a while. I considered a new carb but I think I'll just tune this one, it should be fine. Thank you!  |
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Post by jhobe6678 on Oct 10, 2014 17:23:45 GMT -5
Per 2TDave's advice, I just stopped off at ACE Hardware and picked up some stainless hex screws for the CVT Cover. Those philips heads look like someone was chewing on them.
Today I ordered the BBK AND the Technigas Next-R exhaust for this puppy. The exhaust will take a while to get here, but that's ok. I don't even know when I'll get a chance to do the BBK anyways. I'm hoping I get time tomorrow to tinker with the new Vari and dial it in a little. Though now I think I should have ordered some heavier weights, from what some people have been saying.
I'm 240lbs, I have the stock 4g that the Hoca Vari came with on top of a set of 5g and 6g weights. Should I get heavier if I want better top end? Keep in mind I'm also going to be putting on 1.5k clutch springs too. No Contra though, haven't looked into that yet.
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Post by 90GTVert on Oct 10, 2014 18:10:48 GMT -5
I wouldn't think you'd need heavier than 6g with a stock contra. May need lighter or a stiffer contra.
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Post by jhobe6678 on Oct 10, 2014 18:28:48 GMT -5
I wouldn't think you'd need heavier than 6g with a stock contra. May need lighter or a stiffer contra. That's what I was looking for. I am still trying to figure out the physics and mechanics of how it all works together. Adding in fuel/air ratios is making my head spin. Considering the work I do at my job (building cryogenic sensors to measure as far down as 3 degrees kelvin) kind of makes me feel like my head is filled with warm oatmeal by the end of the day lol. Everywhere else I've read, heavier weights are usually in extreme applications. I'm not looking to build a drag bike, just something that if I need to drive to work (25 miles) it doesn't take me 2 hours to get there on normal city roads. And so I can possibly zip by some of the other slow ass scooters I've seen around lol. So then I'm on the right track for now? YAY! Thanks Brent. You're a good Jedi.  |
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Post by jhobe6678 on Oct 11, 2014 13:35:15 GMT -5
Ok. CVT/Vari Tuning Day 1: 1. Figured out my ratio, maybe. I turned the bell and watched a mark on the tire. It took about 13.5 revolutions of the bell to turn the tire 1 full turn. 2. The center stand needs to be fixed so I finally got my jack and raised the back tire off. I held full throttle (which she gets to without a problem) and max was around 8,200 RPM. This is within the first 5 minutes of it running. 3. I watched the clutch pulley move and it seemed ok, maybe not all the way but that could be because of #4. 4. I notice the belt does NOT travel all the way up the variator, it leaves about 1/4" of the face alone. I'm going to take it for a run right now as it, get the GPS Speed then put the Hoca Vari on. I'll report back soon, hopefully with good news. |
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Post by jhobe6678 on Oct 11, 2014 14:41:22 GMT -5
Having a hell of a time getting the Hoca vari on the spline. It really is bad, I've been filing at it for the last 20 minutes or so, doing little bits here and there and it's not going. The old vari floats on it, I can actually jiggle the back plate back and forth (or side to side?) against the splines like it's lost some meat in the teeth on the plate. I can't even get the new drive boss to slide on. I know it's the right size, it matches the old plate and boss, it just feels like there's barely 1mm (if that?) of room that needs to be made. Time to get the sander out, working with the sun on me is killing me here.  |
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Post by niz76 on Oct 11, 2014 16:04:13 GMT -5
Yep- I had a hard time getting the new Hoca parts on too- filed each tooth on the plate and had to run sandpaper on a drill through the drive boss multiple times to get it all to fit.
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Post by Sitticuss on Oct 11, 2014 16:13:56 GMT -5
they send a drive boss with it don't they?
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Post by jhobe6678 on Oct 11, 2014 16:14:41 GMT -5
Yep- I had a hard time getting the new Hoca parts on too- filed each tooth on the plate and had to run sandpaper on a drill through the drive boss multiple times to get it all to fit. Well thanks to YOU, the PLATE IS ONE!!! I'm not talking about the fixed pulley, that goes on just enough with the key. The back plate I couldn't get to go. But I filed each tooth and WHAM! It fits like a glove! Now I'm having issues with the drive boss. I've nearly set my hand on fire but hey, the little bastard has a hell of a shine job! I wish I could use the old one but it's longer and the OD is smaller so that's a no go. So this HAS to work. I'm thinking of taking a quick drive to HF and get a reamer. If they have one. |
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Post by jhobe6678 on Oct 11, 2014 16:16:04 GMT -5
they send a drive boss with it don't they? Yes, they do. A pretty bad ass one, larger OD than my stock and maybe 1-2mm shorter in length. I'm just having issues getting it over the shaft. The ID is a hair too small so I'm having to ream it slowly. Without setting shit on fire. |
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Post by jhobe6678 on Oct 11, 2014 19:33:58 GMT -5
So I've spent roughly about 6 hours trying to get this  variator on. First I couldn't get the back plate to slide on. Well thanks to Niz, I got it with some filing of the grooves. Fits like a glove. Good, right? No... Here's why. Here's the drive boss. I've been sanding, filing and "trying" to grind the inside open a little to fit the damn shaft. But no luck.  Here's the back plate on, slides on easily and very little to no play in it when it's set back against the whatever wheel that is. Shut up, I'm too lazy and frustrated to look it up.   Here is half of the variator on and this is as far as the drive boss goes. SO F*#^@*$% Close!  Here is with the old drive boss, which has a slightly smaller OD than the Hoca one and is maybe 1mm longer than the Hoca as well. Yeah I'm not going to use it, just showing you a reference as to what it's supposed to look like I guess.  The largest drill bit I have is 1/2" which this thing slides right over. I've done the sandpaper over the drill bit like Niz said. Hell, I even had the motor running and with a glove on I tried to use the shaft to ream this thing out but NO! AH!!! *cries* I'm thinking maybe I should wait till the other crank shaft comes in that Sitticus (Thank you man!) is sending me and just do the BBK and the vari at the same time. Ugh this is BS. Is my shaft bent or is the Hoca Drive Boss just this tough all the time? I've contemplated just slamming the drive boss onto the shaft but I need to be able to change the weights, that was the point of buying this vari and the 2 other sets of weights I have that I can't even use yet. I'm not sure if the boss will eventually smooth itself out or not. The old drive boss is clean and straight inside. The shaft doesn't "appear" to look bent when I inspect it. I've given it a good filing and cleaning, it looks a little better than when I first was looking at it. But dammit man, I can't get this thing on! |
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Post by 2TDave on Oct 11, 2014 19:44:35 GMT -5
Try a dremel sanding drum.
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Post by jhobe6678 on Oct 11, 2014 19:48:14 GMT -5
Try a dremel sanding drum. If I break out the dremel right now, it's going to be to carve obscene things into this beast... I'll have to see if I have the drum/pieces tomorrow. I'm tired and broken right now. I was really hoping to take this thing for a spin today. Looks like another day of improvising! BTW. This time when I put the vari back together (if...) I'm doing it without the belt. I think that's where I f'ed up and why the damage was caused that you found. The belt held the pulley out and I assumed it was tight against the drive boss. The other day I took it apart for practice and noticed that. So I'll just slip the belt on after, it's not that hard since I can pull the clutch pulley by hand just fine. |
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Post by 2TDave on Oct 11, 2014 19:56:24 GMT -5
Just pull the belt down in the rear pulley a little and it will loosen it up in the front.
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Post by jhobe6678 on Oct 11, 2014 21:24:04 GMT -5
So my OCD wouldn't let me rest till I solved this. And of course my genius brain forgot the most basic and most USEFUL tool I have in my arsenal. The Dremel. Well, it's the Harbor Freight version, but it friggin works! So 2TDave suggested the sanding drum. Well the ones I have won't fit. BUT WAIT THERE'S MORE!! I have the grinding drums! I found one to fit inside and I felt like Clank for a moment. Sparks were flying over my kitchen sink, I wore my sunglasses at night so I could still see if things went flying. Low and behold... *drumroll*
It's finally on. I'd love to post pics, but my internet is being a dick and my photo host isn't loading the pictures that I already uploaded.
So yeah, the vari is on. There was a little space behind the kickstart pawl so I took the washer out that Dave put in there and added in one of my own that was a bit thicker to compensate. No belt on it now but the vari is on there solid as a rock. And yes, the drive boss floats just barely on there but I'm sure it will loosen up over time. I hope. If not, I can always grind it down a bit more.
Tomorrow morning I start tuning. Providing the weather doesn't shit on me.
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