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Post by 2TDave on Apr 10, 2015 18:16:34 GMT -5
I've done the same with the seals. Don't let it ruin the crank install victory. I get so damn nervous dropping in cranks it's a wonder I get them together at all and win I do it's a huge relief.
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Post by Lucass2T on Apr 11, 2015 2:26:01 GMT -5
Exactly! Nervous is the best word to describe the feeling hah!
I found one thing btw about the crank i didn't really like and shouldn't be if you'd ask me. it has a significantly bigger gap between the right crankwheel and the cases that is does on the left side. So the crank doesn't perfectly sits in the center of the cases. I dunno if this is also with the high end, big buck cranks like the malossi titanium and polini evo cranks but i guess when the crank is machined right you don't get this.
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Post by Lucass2T on Apr 13, 2015 3:09:32 GMT -5
I measured gaps between the left and right crankwheels compared the cases. In MM's i have a 1.50mm gap on the right and a .90mm gap on the left. Another thing i noticed was that when i rotated the crank with the feeler gauge inserted between the left crankwheel and the case, it got jammed at one point. So it seems the crankwheel isn't straight. Anyway, its a brand new crank with quality parts (as i have been told) and this is just a static observation. So im not yet worried. Here are some pics:   I am also not pleased with the reed position and angle. It's a Malossi VL14 and it's blocking the boost port. Also the typical minarelli reed angle is way off if you ask me. So i designed a angled spacer and have a machine shop make one. This is the position i was thinking about.  This is how it sits in it's original position  This is how it will sit with the spacer between   |
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Post by Lucass2T on Apr 14, 2015 15:08:33 GMT -5
My reed spacer is done  Got it made by some member from a dutch motorcycle forum. It will come in the mail somewhere on friday i think.  |
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Post by 2TDave on Apr 14, 2015 15:41:06 GMT -5
Cool. I've seen similar things for sale from polini I believe. I'm interested to see how it works for you. The only problem with doing these complete builds is trying to figure out just what gains were received from what mods. Like I don't know what the performance gain was from trenching my cases on the RX8 because I never ran the setup w/o trenches cases. Good problems to have I guess.  |
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Post by Lucass2T on Apr 14, 2015 16:29:09 GMT -5
Cool. I've seen similar things for sale from polini I believe. I'm interested to see how it works for you. The only problem with doing these complete builds is trying to figure out just what gains were received from what mods. Like I don't know what the performance gain was from trenching my cases on the RX8 because I never ran the setup w/o trenches cases. Good problems to have I guess. There are a lot of angled spacers but they are mounted on top of the reed in stead of under it. Its for when you want to aim the carb to the rear. Those things are quite useless if you ask me. I might add my spacer later on after i put some miles on the new engine. That way i can figure out if the trenching alone did anything with the top speed. I will never know what it did with low and midrange torque becouse i never dyno'd it and it's too long ago to judge on feeling. The only objective measurement is topspeed but i think trenching doesn't do that much to topspeed or peak power. The same for that athena cdi with variable advance. I'll add that when i'm gonna dyno the engine. That way i can exactly see what that thing does to the torque curve. But again, that spacer is more for my own peace of mind. If i think it does add 'something' im fine with it. And as long as i get beyond your 74mph 2TDave haha. |
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Post by 2TDave on Apr 14, 2015 16:59:38 GMT -5
I'm watching closely and welcome your 74+ mph run! I've got a couple of things planned myself in the near future. |
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Post by iwiketuddlz on Apr 15, 2015 7:09:35 GMT -5
Wow amazing work Lucas, after looking at your work I'm certainly doubting my case work for the big eVo,,I think I will be retrenching my cases soon. BTW Awsome build and absolutely stunning work I must say, and good luck to you,..good sir
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Post by Lucass2T on Apr 15, 2015 8:29:59 GMT -5
Wow amazing work Lucas, after looking at your work I'm certainly doubting my case work for the big eVo,,I think I will be retrenching my cases soon. BTW Awsome build and absolutely stunning work I must say, and good luck to you,..good sir Thanks! In your case i would wait and get your engine's tune in line first! Get it to run strong, dyno it and record your findings. THEN trench the cases to the point you feel fine with it and dyno it again. You might make it worse the second time, who knows? When you do you can draw some conclusions from it. It adds to your knowledge and experience you know And maybe to ours too if you'd share the results! |
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Post by iwiketuddlz on Apr 15, 2015 9:03:27 GMT -5
Good point sir, I mean I did trench my cases,a lot of sweat and shavings lol but I feel it could be better now after seeing your trench job ya know. And I wish I had access to a dyno I'd love to see where Im at ATM...oh and far as the tune I'm quite certain I have nailed it.the thing runs great, I ended up with #120 main jet and #48 pilot,doppler alien eye air filter with all 3 vents open... Clip on the center and it's beautiful, no bog or seizure yet and I've been wot Alot lately.. Hehe evo PoWeR is such a rush....
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Post by Lucass2T on Apr 19, 2015 3:37:19 GMT -5
Had a little sit-back today. I found out my front fork and diskbrake conversion is getting more difficult than i anticipated and like.
There are two versions of the yamaha axis, the drumbraked and diskbraked version. I have the drumbrake version. My idea was to swap the front end from a diskbrake version to my drum brake frame.
I bought all the fork parts of a disk brake version like the fork legs and triple tree. But the stem from the diskbrake triple tree is shorter! The threads from the center nut sits like an inch lower than the original threads, so i can't reach/tighten the nut on the diskbrake triple tree.
My idea was to cut about an inch from the frame, or cut the top of the original stem and weld in on the other one. The last solution could be to switch the stems.
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Post by 2TDave on Apr 19, 2015 6:28:43 GMT -5
Can you use the drum stem and triple tree with the disc fork tubes?
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Post by Lucass2T on Apr 19, 2015 15:13:51 GMT -5
Can you use the drum stem and triple tree with the disc fork tubes? Maybe...but it's not gonna be plug and play. It's more like grind and mill... Those forks and parts are completly different from each other. I need to take a good look at this and decide what to do. I might saw the stems off and weld the drum version on the disk triple tree. Need to figure out how to do this so that lenght, rotation and alignment are perfect. The other possibility is to seperate (grind and thus sacrifice the rest of the drumfork) the stem from the drumfork. Mill it to spec and press it into the disk triple tree. Hate these unexpected difficulties..... |
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Post by 2TDave on Apr 19, 2015 16:02:36 GMT -5
I converted to disc w/hydraulic
fork from drum and the funky cantilevered spring suspension on my retro build. I got lucky and found a front end off another small frame scoot from Niz. I had to use a mix of bearings and races and make a spacer. Sounds like your is tougher. Can you post some pics of the two?
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Post by 2TDave on Apr 19, 2015 16:03:57 GMT -5
We learn from the unexpected. Embrace it.... Yeah, It Sucks! |
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Got it made by some member from a dutch motorcycle forum. It will come in the mail somewhere on friday i think.
