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Post by 2strokd on Jun 4, 2012 8:43:25 GMT -5
I dont recall ever using the Hoca w/o spacers.?
Mine is filed and shaved though. Makes for a good launch but then it kinda free revs for s second before hitting second. In order for me to wheelie it good i need it to be shifted over the "flatspot". Of course thats on a stock 49cc that i gotta pull on to wheelie.
Sucks you busted another belt. Think its getting stretched when in high gear?
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Post by 90GTVert on Jun 4, 2012 8:54:26 GMT -5
I used to file my stuff flat in the center, but more recently have started filing at an angle all the way across the face. Takes a lot of time compared to the other method, but it seems to work better for me without such bad RPM swings changing big angles. I dunno if it's stretching or not at speed. I kinda doubt it. I busted them I believe from stretching on the more aggressive 103cc, but I would get complete coverage of the drive face (this one was missing 1/8" as setup when busted) and that was a heavily modified vari/face. I lost a good bit of MPH when that was removed, and it was even able to do the speeds of my OR kit, assuming I wanted to bust a belt every time I let it wind out. I really think the wheelie stuff is hard on it. Constant slipping, grabbing, and releasing. I've never seen the guides on the variator ate up like these in such a short time. Forgot to take a pic, but it's more aggressive than normal. The aluminum is pushed up on the edge and leftover from the damage rather than being kind of a clean and smooth wear. Not sure if I'm saying that so it makes sense? You know if you grind something it'll leave metal burrs on the edges, like you've displaced it? It's done that, where it usually wears slow enough that it's more like you've sanded down the guides over time.
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Post by 90GTVert on Jun 4, 2012 19:11:32 GMT -5
I stuck the modded stock fixed half on with 2mm of spacers and, big surprise, it takes off much better. Not sure on speed. 15MPH winds so I was going 50 one way and closer to 60 the other. My power switch was acting funny and cutting off unless in just the right position so I replaced it. Got one with a light this time. Since I was getting a lighted switch I went with blue and got a blue LED light for the CHT. I know it's a tiny change, but it looks cool to me to get rid of the red that used to match the wheels. Any time I can be happier with the scoot for less than the price of a gallon of gas I consider it a win.
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Post by 2strokd on Jun 4, 2012 19:52:19 GMT -5
I like that CHT gauge. Did i miss something?? I didnt even know you had it.
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Post by 90GTVert on Jun 4, 2012 20:11:44 GMT -5
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Post by 90GTVert on Sept 16, 2012 18:55:28 GMT -5
With Project 49 done, or at least for now, I put the 103cc back in that I built and then rode for a week or so and took back out. I traded the 10:1 gears to 190mech for a set of 13.5:1 gears, so I installed them before the engine went in. I know everyone wants the highway gears, but I've never owned a long case with anything other than 10:1 gears. I guessed at where the CVT may need to be and started it up. I took it for one lap around the yard and DAMN! These gears are no joke. Did 1 wheelie just with throttle, came to the corner of the house, tapped the throttle, slid the back out, put it back in the garage for right now. I'm sure the tune will need some work. It feels like neck-snapping acceleration compared to the 10:1s. I think I'm in love. I may change my mind the first time I get out on the road above 10MPH, but it certainly seems like it will be fun to play with in towns. If it were all ready to ride, I'd be in town right now doing wheelies. lol I just don't wanna annoy my neighbors while it's dark and quiet out. I think I've already got a sheriff patrolling the road now where I was doing the 0-35MPH passes. I never saw cops down there, and since the farmers started really watching me, there's a sheriff on the road daily. It's tough to tune as often as I have been and not make some neighbors hate you.
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Post by 190mech on Sept 16, 2012 19:25:56 GMT -5
Gotta love them "granny" gears!They top out quick,but are fun getting there!! ;D
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Post by 2strokd on Sept 16, 2012 21:52:51 GMT -5
Ohh! Those gears RuLe for fun :riding: :burnout: ;D
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Post by 90GTVert on Sept 17, 2012 8:53:13 GMT -5
I took a quick spin around a back road and the gears really aren't all that bad. I did 52MPH @ 9,060RPM sitting up, cruising. That's fairly close to where it was with the 10:1 gears... but when I let of and get back in it with the 10:1s, it definitely didn't feel so snappy. I could do a little more speed though with the other gears. I like 'em so far. Once I got on the road, it seemed like the trans didn't bite enough to really pull the wheel up. It slipped in too much.
I've got a test pipe on there right now. I think I'm going back to the Phongeer that worked really well for this engine.
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Post by 90GTVert on Sept 17, 2012 20:22:32 GMT -5
Well, that didn't last long. It seemed a bit noisy, but I wanted to take it to town anyway. Rode 10 miles there, and by then it was making tons of noise. Went home. I thought it may have been the starter clutch and/or variator. When using the electric start, it would have a big thud/clack and stop for a second. That went on the last time I ran this engine, but the engine came back out of T2 so quick that I never did anything. I also knew the variator guides for the ramp plate were getting worn down so I thought that may be part of it.
I parked it in front of the garage and went to open the door. I was gonna get a video of all the noise it was making, but it clunked and shut off. It did that once to me at a light in town too. This time, no restart. No spark. I still wanted to investigate all of the noise before troubleshooting the lack of spark, so I popped off the CVT cover and had a look. The starter clutch seems OK. Can't swear it has no issues, but nothing obvious. I already knew about the variator.
I found 2 new issues. First, the bearing in the CVT cover is so loose that it spins in the cover now. It had been popping out for a while, but I had to tap it back in and it didn't move. It only came out when taking the cover off when hot, so I just figured the aluminum cover expanded more than the steel bearing. Whatever the case was, it just can't keep the bearing still now. I'm sure that had to make some of the noise. Second, I can wiggle the crank. If I grab the end I can move it slightly side to side and a little more in and out.
The engine's gonna have to be worked over before I ride any more. The bottom end is from P90. Stock 45mm stroke ATV crank that was already used when I got it and then I put quite a few miles on it. I'll prob replace that with a 45mm Ruima that I picked up new on eBay for cheap some time ago. Someone bought it and never used it, so I got a great deal. i don't have crank bearings, I don't think, so it may have to wait a bit. Then of course once the engine and what not is done, still gotta find why no spark.
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Post by 90GTVert on Sept 22, 2012 8:22:55 GMT -5
Troubleshooting the ignition issue was done as soon as I removed the fan cover... Bearings had a lot of play in them. Crank seems OK, but it's not the same quality as the Ruima, so I'm still ditching it. The Ruima did have bearings on it already, so I installed it this morning. Crank won't budge. When I clearanced the cases, I did it with a crank that someone had shaved down a bit. I guess there's a tight spot somewhere, so I'll have to pull it back apart. :doh:
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Post by aeroxbud on Sept 22, 2012 18:51:03 GMT -5
An easy mistake to make At least you know what the noise was!
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Post by 2strokd on Sept 24, 2012 9:59:02 GMT -5
Dang! You think the crank swung around that far and hit the pick-up? I was just going to suggest a problem with the other side of the engine.?
With the cover bearing.... I have had the same problem in the past and i ended up epoxying the bearing in the cover. Not a bunch. Just a dab on the opposite sides of the bearing. I was able to still get mine out that way when needed.
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Post by 90GTVert on Sept 24, 2012 10:30:25 GMT -5
That's what I think. You're only dealing with .010" or so anyway and the crank definitely moved with me wiggling it around by hand, so who knows what it may have done with more force. Looks like it was rusted in just the right spot too, so it prob didn't take a ton of force.
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Post by 90GTVert on Sept 24, 2012 14:52:21 GMT -5
Got it together so it will rotate finally. I worked it a bit and put it together and it was tight, but could move. I used a ratchet and spun it a few times so I could see where it was hitting. Got it together today and it will spin. Then I went to install the seals and the CVT side seal I thought I had is actually an axle seal.
At least there's no play in the crank now. After seeing 2strokd find a worn case some time ago, I always worry when there's play.
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