I am the proud owner of a used '08 Roughhouse 50!

The spirited black sheep of the Genuine lineup

Moderator: Modern Buddy Staff

Post Reply
User avatar
DIZZEE1.6
Member
Posts: 23
Joined: Sun Apr 08, 2012 3:23 pm
Location: Louisville, KY

I am the proud owner of a used '08 Roughhouse 50!

Post by DIZZEE1.6 »

Hi everyone! Obviously new to the site, but I have owned scooters in the past (Honda Spree, Yamaha Razz) and motorcycles too... I have loved anything with 2 wheels it seems since I was a little ankle-biter... Love cars, boats, trucks, etc. etc... Which is probably why I'm in our Auto. Technology program at the state comm.college!

Just a little about me there, and now to the reason for my post... I've been lurking on the site here for a couple weeks now and have really enjoyed everyone's knowledge and enthusiasm in helping one another. :D
Many other forum sites are full of you-know-what's that would rather make fun than share what they know. I've never understood that... Anyhow, I've learned much and it's really gotten me interested in what possible mods I should look at that will benefit myself and the scooter. I did buy the R50 for a specific reason, that being transportation to and from work and a little joy riding on the side :)

I've begun de-restricting (did remove the "cone"in the exhaust) but haven't yet worked on the CVT. I'm off tomorrow and I've made plans to go to the repair shop I used to work at and remove the bushing so that should be that. Thanks to you guys, I know what to do!

My real questions concern what exactly to do after this is done. I guess my main concern with my scooter is doing whatever is recommended to keep my little 2-stroke running for a long time. I worry that it's running a bit lean and this should also be remedied tomorrow at the shop. Hopefully tune the carb, replace the spark plug, and then monitor my temp.'s and get it dialed in. These mod's with the exhaust and CVT shouldn't affect the fuel/air mix too much should they? It is the stock exhaust, stock Keihin carb (17.5mm I think?) and stock airbox. Nothing else has been done to my knowledge.

Once the tune-up is done including oil, crankcase oil, and good cleaning; where should I go from here? This is where I get lost because there's a lot of options with this setup... Currently it runs quite well.. It'll go 50 Bmph and accelerates well including climbing hills, etc. It does seem like I'm winding it out though in high gear. Like there's enough power to push up the top end speed, but Ive run out of gear! It doesn't seem like it should do this considering it's basically stock, but if anyone can identify with this, what did you do to remedy it? Maybe heavier rollers to increase the top speed? I also think the variator should be replaced as well as the clutch, but I'm not sure what effect if any these 2 things will have concerning the top end... Like I said, it shoots out of the block pretty darn well, and I don't want to lose all of that acceleration, but some sacrifice would be completely ok with me... What do you guys think?

Like I said, I want to ride my Roughy for a long time, so a BBK is not in the cards right now. I would like to gain more power through other means though... I was thinking about upgrading the stock Keihin carb to a slightly larger one and rejetting.... Next, a CDI ignition, coil, oil pump, exhaust w/ expansion pipe, etc. What do you think the best carb would be for the Roughhouse? A flat-side or CVK? Again, what are your opinions on this? Am I even anywhere close to doing things in the right order? I am the type of person that likes to do one mod at a time so that I can see, feel, etc the difference each part makes... It just makes sense to me!

Wow! This got longer than I had planned... Oh well... Last thing, really. Is it even worth doing the work and adding the above mentioned parts to a 50cc scooter? I'm just wondering if I can get it to be reliable, fun, and fast enough to keep up with the traffic on these 45mph roads that I have to ride on to get to work. If money weren't an option, I would have found a 125cc or 150cc to ride, but it just wasn't possible and I REALLY needed it fast! Plus, I only paid $600 for it with a little plastic damage and less than 2k miles on it! I think I did the best I could with what I had.

Anyways, I know there's a lot here but any suggestions or advice would be greatly appreciated! I know that some of you are asking the same things I am, but I also know that some of you really know your stuff! So please help a newbie to the Genuine scene out, and I'll make all of you proud! Thanks!!!

[/size]
User avatar
RoadRambler
Member
Posts: 181
Joined: Tue May 31, 2011 2:29 pm
Location: South of Richmond, VA

Post by RoadRambler »

Wow, you clearly have so much mechanical knowledge and I simply can't comment on your technical questions. I hope someone else will as I am always eager to learn about maintenance tips and tricks. And thoughts about enhancing performance/"derestricting." Congrats on your scoot -- I took our RH on a long ride yesterday -- love the 2 stroke buzz!
User avatar
SuperCyclone.81
Member
Posts: 282
Joined: Sat Jan 21, 2012 10:53 pm
Location: Fayetteville Arkansas

Post by SuperCyclone.81 »

All of that sounds great. What kind of top speeds are you guys getting out of the 50cc?
User avatar
DIZZEE1.6
Member
Posts: 23
Joined: Sun Apr 08, 2012 3:23 pm
Location: Louisville, KY

Post by DIZZEE1.6 »

Well, I just got back from the shop after removing the variator restriction on the Roughy. Mixed feelings with the results, honestly. From what I've seen and read the procedure is simple, but I'm beginning to wonder if somehow the variator nut is on too tight. I know it's supposed to be between 25 and 28 ft/lbs, but it's difficult to get exact when you can't keep everything still to use a torque wrench! That's why it's recommended you use an impact wrench to remove the nut in the first place. So....

My problems of winding out in top gear are seemingly over. It doesn't wind all the way up at any time now. That's where my concern lies. It has lost a lot of it's acceleration and does NOT like hills anymore! That's whay I'm wondering about the overall tighness of the variator assembly... If anyone knows whether this matters or not, please let me know! It seems like it wouldn't matter, but I really can't see how anyone would be so excited about the way the Roughhouse accelerates now. Granted, when I got to those busier roads I was talking about in my earlier post it showed the top speeds I was looking for. Sacrificed a lot of torque for a fair amount of top end.

My Roughhouse 50cc now tops out at an undetermined speed. Why? Because it never wound all the way up to see! I got it up to over 55 Bmph on a flat stretch though, which is about 6-7 Bmph more than before the bushing removal. This I like! I suppose this is a perfect example of why we never stop tuning, swapping, and upgrading when it comes to our toys... Before, I really liked the zip it had off of the line, and now I like it because it goes faster. Kinda funny really.

So I suppose the next order of business is too get a new set of rollers and possibly a new variator all together if possible. But, first things first. A new, lighter set of rollers should bring back some of that torque I'm missing and then I'll see where to go next. Who knows? Maybe I'll be satisfied, but i seriously doubt it! There's too much that I want to do to this thing. Especially since I stopped my my local scooter for the first time today and got to see all of those new, beautiful works of art... I'm serious, some of them were gorgeous! I'll say this though, my favorite out of the bunch was probably the Buddy Blackjack 150. It's smaller than I though it would be, which is fine, because with that engine it has got to haul the mail!

One last thing.... What is the color of the stock clutch ( contra ) spring for the Roughhouse 50? While apart, I noticed that mine was red. Was just curious if that was stock or not... Thanks everyone and happy riding!
User avatar
agrogod
Member
Posts: 1156
Joined: Mon Jul 19, 2010 9:29 pm
Location: Rancho Cordova, CA

Post by agrogod »

No, your spring is not stock.
"When your mouth is yapping your arms stop flapping, get to work" - a quote from my father R.I.P..
always start with the simple, it may end up costing you little to nothing
User avatar
neotrotsky
Member
Posts: 1546
Joined: Wed Jun 01, 2011 8:48 am
Location: Phoenix, AZ
Contact:

Post by neotrotsky »

The thing to remember with 2-stroke scooters in general is that you have a list of options that you can include in building up your bike:

-Fast/powerful
-Cheap
-Reliable

Now that you know your options, pick two of the three.

In your case, you already picked one: Cheap. Now, that's not a bad thing in and of itself, but the problem is you can only have one other aspect. You can NOT have a bike that includes all three. It's simply not possible, although many of us still seek to find that impossible combination.

The fact that you have your little 50 to 45mph already is impressive. But these Genuine bikes have a habit of being impressive scooters. But, you are reaching the max of what a 50 can do. I highly doubt you will see much improvement on that top end at all. The only 50cc 2T I've seen that can pull 55-65+mph is an Italjet Dragster (that would be the Fast+Reliable combo... and definitely not cheap to either buy when you can find them or to find parts for).

Obviously you have quite a fair bit of mechanical skill, but even as you said before you were more interested in a 125 or bigger. As someone who just had to replace his ENTIRE top end and extra bits due to a moronic "dealer" who insisted on trying to hot rod a 110 Rattler, these scooters won't be daily drivers if you amp them up. Keep them stock, and expect to see a ton of miles for a 2-stroke out of them. In fact, I took great effort to return my Rattler to stock condition, but personally I think trying to get 55mph out of a 50cc is great as a hobby but not for a daily driver. Well, not for long anyways.
"Earth" without Art is just "Eh"...

<a href="http://slowkidsscootergang.wordpress.com/">The Slow Kids Scooter Gang</a>
User avatar
DIZZEE1.6
Member
Posts: 23
Joined: Sun Apr 08, 2012 3:23 pm
Location: Louisville, KY

Post by DIZZEE1.6 »

Thanks neotrosky! I really had not thought of my Roughhouse in that way... It does make a lot of sense and it's a principle that really applies to any motor vehicle.

As far as the top speed is concerned, I definately think I've gone as far as is reasonable for a 50cc scooter. My concern now is getting some of the bottom end torque back that I seem to have lost. That's why I was curious about finding the red contra spring on the clutch and determining what weight rollers are in the variator.

I was also wondering about re-jetting the carb and adding a performance air filter. Again, since finding that red spring in the clutch, I have to wonder about everything else being oem or has it been changed already!? With my current setup what jetting would you recommend I use with a Uni-filter added to my stock Keihin 18mm carb? Any suggestions would be greatly appreciated! I'd love to hear everyone's opinions on what setup is best! I know there's no "perfect" setup, but I'd like to hear some recommendations from you guys that have actually tried the different setups and know what does what! Thanks everyone and happy trails!
Post Reply