2,000+ Mile Engine Checkup & Long Rides On A Two-Stroke Racing Scooter : RC1 : Part 16

Автокөліктер мен көлік құралдары

I've got over 2,000 miles on the Malossi RC-One 94cc racing engine in my custom Chinese scooter! It's time to take a look at the piston and cylinder, and I'll tell you about a couple of long rides.
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• RC-One Engine Building...
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0:00 Intro
0:27 Long RIdes
3:24 Breakdown
4:28 Ride Issues
5:11 Engine Check
6:54 To Piston Or Not To Piston
8:57 Reassembly
9:49 Bread Bearing Removal
10:24 Repairs
11:28 Dragy Testing
#RC-One #2Stroke #RacingEngine

Пікірлер: 37

  • @KacKLaPPeN23
    @KacKLaPPeN2310 ай бұрын

    That's amazing fuel economy holy crap. I got round about 35mpg back in the day with my Aerox, which is running a quite mild setup because it's super illegal to ride modified scooters on public roads here. DR Evo 70cc sport, 19mm phbg carb, modified stock airbox and a Gianelli Shot v4. Still have that thing but haven't moved it since I got my car license, it's super fun but not fun enough to lose your license over.

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    You don't have to use much throttle with the RC1, so that probably helps. When I built lower revving torquey setups, some of them did quite well. I got around 70MPG when riding for mileage on a 96cc Vino clone and it had enough power for wheelies and 60+MPH.

  • @opichocal
    @opichocal10 ай бұрын

    I did an iron butt with my Zuma 125 last year. 1000 Miles in 23hrs 45 min! Man that kicked my butt and the total miles were 1209. Two months ago I rode from Dallas to pikes peak and back. That trip was insane and I came home with 21 nails in my tires. That little Yamaha is a workhorse

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    I think around 500 is my most miles in a day and it was probably 20 hours, but I was creeping around a lot doing a scavenger hunt. I never knew the iron butt was more than just something people said they had till recently finding out about the 1,000 mile challenge in 24 hours. It's definitely a different challenge on the small scoot, but a task on anything.

  • @robertpierce1981
    @robertpierce198110 ай бұрын

    That bread thing is very cool. Worthy of a “short” video

  • @dc3763
    @dc376310 ай бұрын

    Nice job man! Keep on going! :)

  • @zoniyat8519
    @zoniyat851910 ай бұрын

    I could listen to that baby scream alllll day long for sure! I highly appreciate all the info you share with the scoot community 🤙 you are a role model to me

  • @jmrides777
    @jmrides77710 ай бұрын

    Great vid bud! Very informative and got the gears in my skull moving. Interesting content so good on you.

  • @ItsMe-dj8zd
    @ItsMe-dj8zd10 ай бұрын

    As I’ve said before I’ve very pleasantly surprised how well these motors hold up. Probably about time I pull mine apart.

  • @robertpierce1981
    @robertpierce198110 ай бұрын

    I really like these length segments. I really like the underslung camera view also

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    I got a 3rd GoPro because my 2nd was in for repair when I was about to head to TN. Figured I might as well use it.

  • @flakey7832
    @flakey783210 ай бұрын

    great info

  • @jessebunch621
    @jessebunch62110 ай бұрын

    your a badass man, been watching you for years. ever since the overrange video. talk about meticulous. i actually have a yamaha aerox here in the states, its got all evo2. anyway i havent seen you mention what final gearing u run in the rc1?

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    Thanks! I've never even seen an Aerox in person. I've got the ~10.3:1 gears.

  • @bb_adrians4672
    @bb_adrians467210 ай бұрын

    Almost 4000km on an 94cc Testa Rossa - that's beyond impressive! Most guys in Europe change the whole cylinder after 1000-1500km because of not properly tuning the carb or using bad cooling methods, which leads to cylinder seizing or worse. Im properly amazed! Also, would you ever try a bigger carb, for expample, a PWK 30mm or Keihin Air Striker 33mm? I know it's pricey and pretty pointless for daily riding, but for quarter mile times or top speed, would be fun to see if it makes a dramatic change and if i't justifies spending 200+ for a simple carb.

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    I'd like to try a 34mm in the future. That seems like the go-to carb for most "upgraders" with an RC-1. That's what Ryan uses and it works well, but there's such a big weight difference and now he uses a different exhaust, so who knows what does what from that. I'd need to figure out which intake to use. His carb keeps falling out. The intake just won't hold it anymore so it has to be zip tied to keep it from pushing out. Something with more supple rubber like the Malossi intake that I'm using now would be better I think.

  • @bb_adrians4672

    @bb_adrians4672

    10 ай бұрын

    @@49ccscoot Yes, the carb falling off is an issue because 30mm+ carbs have a 39mm intake instead of 35mm. We use an intake from the Polini P.R.E 100cc (Polini P215.0458) and it works beautifully. If i remember correctly the holes even align so its practically a straight on fit. Only problem is getting hands on one - most of them are out of stock, maybe even unavailable where you live.

  • @user-tk1qn8eo3c
    @user-tk1qn8eo3c10 ай бұрын

    👍👍👍🔥🔥🔥

  • @MrFlobot69
    @MrFlobot697 ай бұрын

    Try swapping the coil springs out on those shocks

  • @RetroJunk0
    @RetroJunk010 ай бұрын

    Hey I was curious if you thought it’d be possible/safe to hack up a 02-11 yamaha zuma rear wheel and turning down the center of it to use as a hub adapter for a bugeye zuma considering no one makes them anymore !?

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    Other people have done it with various scoots. As long as care is taken, it can work.

  • @RetroJunk0

    @RetroJunk0

    10 ай бұрын

    Now it’s time to find a machine shop that would consider doing it , im looking to put some 10” dwt polished wheels on my bugeye 🤷‍♂️

  • @spongebobdriftpants
    @spongebobdriftpants10 ай бұрын

    the fuel economy is unreal.. my jog minarelli gets 60mpg, the exact same as my majesty 400 swapped elite that does 12s 1/4mile.

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    Ryan got 60MPG IIRC when we took the 2-strokes through the Tail of the Dragon and I was still around 40MPG. Being twice the weight of the average scooter rider doesn't help mine, plus punching a big hole in the air with my size and a scoot that's like a 4x4. You really need to put vids of the 12 second Elite on here. I'd be out surprising Mustangs all day.

  • @spongebobdriftpants

    @spongebobdriftpants

    10 ай бұрын

    @@49ccscoot its wild how inefficient the 2-stroke is, 2.4hp-60mpg. 400cc 40hp-60mpg. and yes i take the scooter out street racing fast cars, its most shocking in the 1/8 running 8.60. its in the process of stand-alone ecu install now. im building a silverwing 600 turbo swap for my next elite sa50 as well.

  • @niknovsak3288
    @niknovsak328810 ай бұрын

    Awesome! Im thinking about getting into scooters and stuff, and if you know how much maintenance does lets say a 72cc need? I dont want to be changing pistons every 300km.

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    A good 70cc sport can be about as reliable as a stock scoot. The more you push RPM and power, the less reliable it's going to be. A 70cc sport is way more powerful than a stock 49cc though, and a good scoot to ride IMO. I used to have a mild 70cc on the shelf as an emergency backup.

  • @mansikkamies9146

    @mansikkamies9146

    10 ай бұрын

    Id run it a slightly rich and replace the piston when it loses power or compression

  • @niknovsak3288

    @niknovsak3288

    10 ай бұрын

    @@mansikkamies9146 so lets say instead of 2% I'd make 4% or 5?

  • @niknovsak3288

    @niknovsak3288

    10 ай бұрын

    @@49ccscoot so if i have a stock 49cc, what do i have to change if i upgrade the cylinder and piston to 70cc?

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    @@niknovsak3288 For the most basic, you can bolt on something like a Polini Sport kit and tune the carb and change rollers for best performance. If you want more power you can add an exhaust and then you may also need stiffer clutch springs and a carburetor upgrade may be beneficial. Stick with something that revs ~10,000RPM or less and it should be able to last, but you can upgrade the crank if you choose.

  • @paulbudford
    @paulbudford10 ай бұрын

    It must give you a bit more confidence doing some miles now, it's not breaking belts like before.

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    A whole lot. I constantly had to track mileage and then consider if I wanted to risk riding past 150 or so. Now I rarely think about it.

  • @GrumpyUnkMillions
    @GrumpyUnkMillions10 ай бұрын

    I would have kept the original piston/ring as I think the clearance is a bit over-rated. As long as the piston doesn't flip around. The parts wore into each other and would likely have gone for a good long while with no change. Of course it is time for a new vid... That thing sound like a Stihl chainsaw connected to your rear wheel. More or less looking at the bore and pistone croen you didn't have to do anything. Just my opinion. tom

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    I would have changed the ring at least, as the end gap was way over spec and I bought a spare when I got the engine. I don't necessarily disagree, which is why I went back and forth a bit. This is a better quality kit than I'm used to, so normally I'm not seeing anything settle in. With cheaper stuff, north of 0.005" can start having piston slap. If the implication is that this was done for video, that's wrong. I do this stuff because I live for scoots. Sure, there's stuff I do because I think it will be interesting... but I'm legitimately interested in it myself. I do see things like this as an opportunity to share useful info. Yes, I always hope that people will watch. Even if you watch me screwing around at shows and stuff, that's me. Turn the cameras off and I'll do the same thing. I've got the driving record to prove it from way before I filmed anything. If I misunderstood what you were saying, I'm sorry. I could make more money by being fake, following trends, promoting manscaping products, asking you to buy my merch or donate in every vid... but I've stuck with being me and being broke instead so the idea that people would think I'm just looking for views kinda sucks to me. Again, if I read into your comment wrong, my apologies.

  • @GrumpyUnkMillions

    @GrumpyUnkMillions

    10 ай бұрын

    The new vid comment was more or less a joke, with nothing implied, and you did not go into the actual work involved. I just am the kind of person who examines the parts, determines if still workable and reliable, and goes from there. You ride longer distances when you go out 50(brother in Salisbury) than I ever do, and want to avoid that call 'bring the truck' so have a different mindset. Given the new parts were a bit off from the published spec, they may be a 'wish we could' make parts that tightly controlled, but sell what they actually produce . Most piston engines have a lot of forgiveness and will work pretty well even out of tolerance. My frugality says use it until it doesn't work(well). You need more reliability than that. I do think the parts were settling in, not worn out, from the appearance, performance and what the piston crown looked like. The new parts likely were still bedding in a bit causing a little loss of performance until they loosened up a bit and the rings were seated a bit better. I am not a 2T expert by any means, but wonder if comparisons to the 'life' of components in chainsaws would be the closest thing, and they are not run as hard for lengthy periods so likely would have rest/relief times when they could cool a bit. Really have no idea how to tell when it is 'time' to re-ring or more. tom

  • @49ccscoot

    @49ccscoot

    10 ай бұрын

    @@GrumpyUnkMillions I think MX is the nearest comparison. Maybe karts. Most of them use hours to determine teardown and re-ring times to my understanding. I'm certain I'm well over the hours they'd go by, but I'm sitting at lights and tooling around and generally trying to enjoy the ride rather than rooster tails in turns and flying through the air or trying to make podiums. I'm also curious to see if the dragy shows any change now that I've had 130 more miles since the vid of riding around at Bikefest. Some of my two-strokes would seem to run better with fresh stuff, totally the opposite of what many say... but again the RC-1 is a different level than the iron bores that I'm most accustomed to. Thanks for the comments BTW.

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