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Post by jtron on Apr 9, 2016 18:06:45 GMT -5
I guess I'm gona try the 13g sliders. That should bring my rpms down a bit while still maintaining good off the line acceleration right? I like the acceleration of the 12s but it just feels like it's revving high, and my fuel consumption definitely went up. I was considering 14s, but I feel that's a bit high idk. I guess I'll see, found some dmc sliders to match my variator for 10 bucks which isn't bad at all, hopefully i like the feel of em and they don't wear out super fast. Figured it would be best to use the same brand sliders as my variator cuz I've heard of some sliders fitting weirdly in different brand variator even though they're still 18x14.
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Air filter
by: jtron - Apr 9, 2016 17:28:35 GMT -5
via mobile
Post by jtron on Apr 9, 2016 17:28:35 GMT -5
Hi, I've had really good luck with the cone style air cleaners ,but I've always used the Moxi brand filler ,I guess not all cone fillers are of good quality. I've even put the Moxi brand on some of my buddy's scooters that I worked on with no problems.as far as riding in the rain I don't do much of that but when I have I had no problem at all.so I wouldn't bad mouth all cone fillers but as we all know when it comes to parts for the Chinese scooters not all of them are of good quality.sadly it's buyer be wear .later guys You said the cone was fine in the rain, was it unshielded? I went for the shielded one I was worried unshielded would be bad in the rain and i ride in the rain a fair bit, there werent many optins for shielded ones, mostly no name generics. I've heard they can have issues when wet, I've never had problems with foam though |
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Air filter
by: jtron - Apr 9, 2016 14:31:08 GMT -5
Post by jtron on Apr 9, 2016 14:31:08 GMT -5
Lol, right? I didn't expect it to be amazing, but I didn't expect it to be absolutely nonfunctional. I oiled it and checked it with a light and if i hadn't I wouldn't have noticed the gaping leaks...imagine if someone put that on their engine and went riding in the dirt!
However my last filter was only like 5 bucks (uni knockoff) and it works great, but being unshielded the outer 2nd stage part got super grimy and is like still black after a clean ( the inner part is pretty clean though I guess that second stage did it's job. I guess the uni design is good even when copied on the cheap.
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Post by jtron on Apr 8, 2016 21:35:16 GMT -5
On my stock setup i definitely felt the ratios changing more, it would start kinda slow in rpms and build, now it winds up quick and seems to stay at like the same rpm while accelerating.
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Post by jtron on Apr 8, 2016 21:30:44 GMT -5
Well, on my 150cc gy6 (stock except for uni, exhaust and jets)I recently replaced my stock variator with a 115mm dmc variator. The variator came with 12g rollers so I decided to give those a try. It definitely feels like it revs higher than before. Not quite sure if I like it though. I weighed my old rollers and they were 17g!I'm guessing it would probably be best to go up a bit in weight to 13 or 14 but I'm not quite sure what to do. I got a cheap induction tach to see where I'm at rpm wise, but I'm not so sure it's accurate at all. Even though it feels like it's revving much higher than stock, it only reads like 6400 while accelerating and when going like 50. It tops out around 55 or so on flat, although i havent really had the chance to do a true top speed test. My stock set up had much lower rpm while accelerating and it felt like it had lower rpms at higher speeds too, it would top out around 55, maybe 57-58 under perfect conditions. Anyways, I'm a bit lost on where to go. From my tach readings it seems like my rpms are fine, and even a bit low, but from feel it seems like they're high! Thinking of maybe getting some 13-14g sliders idk
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Post by jtron on Apr 8, 2016 1:04:01 GMT -5
I'm living with it lol, I'm just worried it'll get worse Idk. I like a project, but getting to the gear kind of looks like a pain and I'd need to buy all kinds of special tools and crap. it would be nice to put a heavy duty starter gear in, considering all I have is electric start. My kickstarter is screwed in an un fixable way, where the case holds a gear the little socket cracked so I can't fix it. I don't have a backup so It's a bit worrying. Will the starter gear continue to get worse, or likely stay functioning as is for a while?
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Post by jtron on Apr 7, 2016 19:15:53 GMT -5
A little while ago I had an issue starting and spent an annoyingly long time fiddling with stuff and trying to start my gy6, only to find that the damn ground by the cooling fan had come loose. I tightened it up and it starts fine most of the time now, but I think when I was trying to repeatedly turn it over when the ground was loose it messed something up.it usually turns over first try, but sometimes I'll hear the starter go but the motor won't spin and it take a couple tries before it catches. I'm thinking its most likely the starter clutch got screwed up, or perhaps the starter got a bit fried, idk. What do you guys think?
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Air filter
by: jtron - Apr 7, 2016 14:08:44 GMT -5
via mobile
Post by jtron on Apr 7, 2016 14:08:44 GMT -5
Well this thing sucks, first off there is a lip after the 42 mm opening that constricts airflow. But the bigger problem is quality. Where the mesh attaches to the metal top is not glued in correctly so there are large gaps where dirt could just fly in. Might as well not have a filter, waste of 10 bucks  also it says the opening is 42mm, but it fits looser than my foam one which is also a 42mm. Overall it's a p8ece of junk. I'm just gonna get another uni type foam deal. |
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Post by jtron on Apr 5, 2016 17:22:26 GMT -5
I just use rotella 15w-40. I've heard it's better with high heat since it's made for diesels which sounds reasonable, no idea if it's true or not lol, but I'd like to think so. It's cheap at least and seems to do the job.
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Post by jtron on Apr 4, 2016 23:56:58 GMT -5
Cool, that's what I've been reading. It's just strange that all the threads I've read say for a gy6 it would be 1 spark/rev due to the wasted spark, but mine seems to be reading accurately at 1 spark every other rev. Well ill see if the rpms look normal at speed once I get the thing mounted
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Post by jtron on Apr 4, 2016 23:40:55 GMT -5
I still have to mount it so I haven't ridden with it on, just hooked it up at idle to see if it works ok. I guess I'll have to try both settings at speed once I mount it. I thought it was strange though that it was reading below 1k at 1spark/rev because most ppl say their scoot dies before it gets that low. My idle doesn't sound slow at all, no stumbling, it's pretty steady at idle.
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Post by jtron on Apr 4, 2016 22:16:36 GMT -5
So I got a new tach for my gy6 150 and was testing it out. I tried to set it on the 1 spark/rev setting because although the gy6 is a 4 stroke, it has a wasted spark right? Well on that setting it only read around 800-900 or so rpms at idle, but wouldn't the motor barely be running at such a low rpms? When I set it to 1 spark/every other revolution it read around 1700-1850 rpms which seems more normal for a gy6 from what I've read. I'm pretty confused, because I thought a 4 stroke with a wasted spark would fire 1 time/rev...what am I missing Here?
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Air filter
by: jtron - Mar 29, 2016 18:10:58 GMT -5
Post by jtron on Mar 29, 2016 18:10:58 GMT -5
Soooooo, basically I have a gy6 150 with a larger header, free flow exhaust, up jetted carb, and a uni type foam filter. It's about time for a new filter since my old one is unbelievably dirty even after a clean and it seems like the cheap foam didn't hold up too well. So this time I ordered a cone type deal with a plastic shield since I ride in the rain a lot, basically I'm curious if anyone else has used one like this and if the shield will cause any significant restriction compared to my foam one. I don't want it to mess up my jetting because I had that pretty dialed in. I got one like this  |
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Post by jtron on Mar 25, 2016 18:32:59 GMT -5
I wonder how much those things will cost...I'm betting around like 3k
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Post by jtron on Mar 25, 2016 18:31:33 GMT -5
Whaaaat! 250cc vtwin? That's pretty cool. I have an ssr Zuma clone which I love, never would have thought they'd start making small motorcycles those look fun as |
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