So for the last 7 months I was riding the rust bucket with no speedo — Yamaha C3

So for the last 7 months I was riding "the rust bucket" with no speedo. ink/10153850043474664/

Interestingly running with no speedo signal has a side effect that means stalls at low speed when braking to a stop.

There's a workaround I figured out: apply front brake then rear, let go front brake and keep rear engaged. Pump rear brake if it sounds like it's going to stall. That was enough to make it like a game to try to not have it stall. :)

Anyway, I was not riding as much as usual - there was no daily commute due to the fact that we had a baby daughter in January and I was on paternity for many months. But I really wish I knew how many miles I did without the speedo. Over a thousand I guess!?

Recap: in December of last year the speedo stopped working for the second time. The guys who did the repair last time told me they swapped the cable so I swapped the cable myself. No dice.

So this time I took it to some different guys. They replaced a gear and washer where the speedo cable goes into the front wheel setup and we are back in business.

Moral: replace the little parts! Use better mechanics!

In other news I just moved house to the countryside and 30mph max speed is not enough to feel safe on these country roads with 40mph to 70mph speed limits. So I will have to sell the scooter :( and go back to my vintage Honda NH80 that can do 45mph.

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    Hey y all I was wondering if you had a particular maintenance plan for your C3 — Yamaha C3

    Hey y'all I was wondering if you had a particular maintenance plan for your C3. I just got mine about a month ago and it's now up over 3,000 miles. It's running great and I really want to make sure it stays that way with routine maintenance so wanted to know what you do keep your C3 running well. I have very little experience with engines, and maintenance, but am open to trying most things I could achieve with a few tools.

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      My scoot is having issues starting using the electric start With the bike off... — Yamaha C3

      My scoot is having issues starting using the electric start. With the bike off, battery voltage is in the high 12's, with the bike running it's mid 13's.

      When I press the start button, the starter tries to turn the engine over, but it sounds like it's not able to overcome the resistance of the engine. Voltage while I try to start it drops to about 6 volts.

      Kickstart works first kick, and the bike is fine while it's running.

      Most strangely, once the engine is hot the electric start works about 50% of the time.

      Thoughts? I'm leaning towards the starter motor going bad, but I thought I'd ask for opinions here.

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        Any opinions on performance between stock vari w Dr Pulley sliders vs Polini... — Yamaha C3

        Any opinions on performance between stock vari w/ Dr Pulley sliders, vs Polini vari kit, vs Malossi vari kit? I feel like I'm hitting a very flat plateau at about 36mph. I'm guessing the limiting washer is still in place, but haven't pulled things apart yet. Figured I'd try to do things all in one go. Thanks for the advice!

        Silver 2007 w/ 2800 mi.

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          Chris McAlevy shared a link to the group: Yamaha C3 . — Yamaha C3

          Just installed some 5 gram dr pulley sliders. I've only rode it up and down the block to test, but there is already a huuuuge difference in low end acceleration. No more dead spot between 10-20 mph.

          For those who don't know, stock rollers are 6 grams. Replacing them with a lighter roller means the transmission stays in a "lower gear" for longer, giving you better acceleration. The only downside is a very, very slight reduction in gas mileage.

          Dr Pulley sliders are also slightly different from the stock rollers, with advantages at all speeds as illustrated in this video:

          Install took about twenty minutes including putting away my tools.

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            Photos from Shawn Jones's post — Yamaha C3

            My first "mods", haha :-)

            A pretty good cup holder. I picked up this optics case over at Walmart for around 10 bucks. It has a loop that fits right around the peg under the front of the seat. Seems to be well insulated. I figure it should keep drinks cold. A Gatorade or Powerade fit nice and securely. I think a pint of Ben and Jerry's should fit in there with enough room to close the top.


            I also added a yellow bandana to the front. I am not a fan of darker bikes since I like to stay visible. I have some Plasti Dip waiting for when I have time to remove some of the panels. I am going to paint the front and sides white like another C3 I have seen on here.

            Also, I added a simple wrist watch. I picked out the one with the largest display. Very easy to see. I added some electricians tape to the metal backing so it doesn't scratch anything.

            Not shown: A phone holder for GPS/music player. That one has some loose adhesive, so I don't quite trust it.

            I questioned if I wasn't going a little overboard with all of these little additions, but I figure if I am going to be using this as a daily driver, I may as well make it feel like home.

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              Hi folks A few quick questions I bought some Mobil 1 SAE 10W 40 full... — Yamaha C3

              Hi folks. A few quick questions. I bought some Mobil 1 SAE 10W-40 full synthetic. should this work well for my C3? I read somewhere that there is a kind of oil to avoid, but I can't find the forum again.

              Would an iridium spark plug provide any benefit?

              Also, I read a comment that someone is able to buy the oem air filter from Amazon. For some reason, I don't get any results by searching for a Yamaha C3 or XF50 air filter. Does anyone have a link?

              Sorry these are all pretty basic questions.

              Thanks for your time!

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                Photos from Chris McAlevy's post — Yamaha C3

                Well, I figured out what the problem was. Belt was slipping at 35 because I didn't tighten down the pulley nut sufficiently when I put it back on. It was way loose when I went to take it off today.

                The drive shaft splines have been damaged by the piece that mates with the kickstarter. Now the stationary piece of the drive pulley won't come off, and the only reason I can see is the burring on the drive shaft splines.

                First two pictures show the burring, third picture shows how far I can pull the pulley piece out, fourth picture is just of the general transmission area to show what you're looking at.

                How screwed am I? Any suggestions?

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                  Howdy all new to me C3 owner here Just bought it a week ago Basically a... — Yamaha C3

                  Howdy all, new (to me) C3 owner here. Just bought it a week ago. Basically a pristine scoot, nothing wrong with it. It was maxing out at about 35 mph on flat ground, and going downhill would peg the speedo at the yamaha symbol, so >40 mph. Yesterday I pulled apart the CVT and removed the restrictor washer, and now the bike absolutely will NOT go over 35 mph indicated, even going down a steep hill. Once it hits 35, it feels like the engine is dragging, hitting a rev limiter or something like that. It makes absolutely no sense to me. Anybody have any suggestions on what I should look at?

                  As sort of a secondary question, when removing the washer, should it just be taken out, or do you reinstall it somewhere else on the drive shaft? Currently I have it taken out and the rest of the transmission put back together just minus the washer.

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                    If when your tires are due to be replaced and you want a bit higher gearing... — Yamaha C3

                    If, when your tires are due to be replaced, and you want a bit higher gearing without changing the gear ratio and want to correct the speedometer to where it will run plus or minus 1/2 mph from 0-43mph (pegged out) gps...Simply go to a set of 130/90-10 tires...You'll have to pull the fugly rear fender, but the bigger tires ride better without clearance issues on front, and when you wear out your rear tire, just put the front tire out back...It'll have 500-600 miles left on it...And, put a new tire on front....You get more miles for your $$$$ and, always have fresh rubber on front....:)

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                      Stephen Poon shared a link to the group: Yamaha C3 . — Yamaha C3

                      Ok I probably should have posted this earlier, but I am new to the scene so let me clarify a few things about NR Magic:


                      NR Magic Replay link: oduct_id=989

                      Japan WebBike Link:


                      found on some other replay links like :


                      純正マフラーの詰まりや破損など メンテナンス用マフラーとして人気のREPLAYに、 新型構造を追加する事によって走りにプラスαの余裕を獲得!更に、サイレンサー=ステンレス製に外観もグレ ードアップ!ノーセッティングボルトオン取付け、燃費向上、静かなeco性能はREPLAYを継ぎつつ、純 正代替仕様ながらも、少しスポーティな感覚をお楽しみいただける製品が

                      Mac hine translated text: The popular REPLAY as a muffler for maintenance, such as genuine muffler of clogging or damage, winning a margin of plus α to run by adding a new structure! In addition, silencer = also grade up! No Settings bolt-on mounting appearance in stainless steel, fuel consumption improvement, quiet eco performance while piecing the REPLAY, while genuine alternative specification, «Replay products to enjoy a little sporty feeling "S" (replay es) ». Bore up correspondence. Because it is let me offer at the limit pursuit price to "Eco price series" raw materials - commercialization, subject to price increases without notice due to fluctuations in the purchase price.

                      In short the Replay was designed for replacement of your stock muffler. you do get some additional performance, as "sporty feeling" lol.

                      according to the NR Magic website the difference between V-Shock and V-Drag is pretty minimal as they have similar structure pick the one you like the design of the best. these are the "performance" mufflers with " A medium low speed Torque fully by running 10 to 15 %Power up realization! "Quiet" In "Fast" Most visitors will Reasonable."

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                        Bruce I need your advice. I have a mostly stock C3 that sat up for awhile — Yamaha C3

                        Bruce I need your advice. I have a mostly stock C3 that sat up for awhile. I took out the washer on the variator but left the old belt on.

                        It would run ok but it stumbled when pulling from a dead stop and seemed to surge a little.

                        Today I put a Mallosi multivar on it with the white contra spring. I left the washer out and installed a new yamaha belt thinking that would fix my issues.

                        Well it starts now with higher rpm but the surge is worse now then before.

                        It seems to do it when I snap the throttle open.

                        My honda elite 80 never had this issue.

                        Should I reinstall the washer?

                        Do I have clutch issues?

                        It seems to be ok if I am easier on the throttle.

                        Do I need to let things bed in first?

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                          So someone decided to tip over my scooter Saturday night causing the rear brake... — Yamaha C3

                          So someone decided to tip over my scooter Saturday night, causing the rear brake lever to bend slightly. It's still within my grasp and doesn't appear to have any cracks on it.

                          I'll order a new one from partzilla if I must, but I was wondering if anyone had any insight on bending it back straight? I was thinking about heating it up at the bend with a torch and then using a table vice to straighten it.

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                            I was planing on buying a C3 from my buddy When I went to pick it up yesterday... — Yamaha C3

                            I was planing on buying a C3 from my buddy. When I went to pick it up yesterday and tried to give him the money, he refused it! He had just found out the day before that my fiancé and I are expecting and told me to keep my money and save it for the baby! Faith in humanity restored. I needed up with a 2007 C3 with only 3k miles on it! Just need to replace the fuel filter and it will be good to go! However I will be doing the standard tune up, oil, air filter, coolant, spark plug, and battery. But what a great deal!

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                              I ve been talking to Mr. Jiangwayne About his excellent lightweight. 1 1 2 lb — Yamaha C3


                              I've been talking to Mr. Jiangwayne About his excellent, lightweight (1-1/2 lb) Stainless Exhaust for the Yamaha XF 50 Scooter...About getting his factory started up once more...It's designed for the engine on our scooter...I have one on my 70cc scooter...I may be able to get him to be a guest on this Forum and interact with us about his Exhaust's and about putting a PayPal Ordering point on here to allow those of you that want to buy one an easy way to do so, with the Permission of the Brother's that Own this Site....We May be able to get a better price with a Group Purchase if enough of y'all are interested....I'm waiting to hear back from Mr. Jiangwayne...Ride Safe out there! - Gabe...

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