Which Whizzer?

Discussion in 'Whizzer Motorized Bicycles' started by Hal the Elder, Oct 28, 2008.

  1. Hal the Elder

    Hal the Elder Member

    HEY FRIENDS:

    The blue unsold 2006 NE5 that I plan to buy this coming Saturday has a red "brother" standing next to it in the dealer's showroom.

    I was curious about that one, so I called the dealer today, who told me that the red one is also an unsold 2006, and it also has just one mile on it!

    HOWEVER, The Red one has a SLIP CLUTCH instead of the automatic centrifugal clutch, and has the rear COASTER BRAKE, instead of the drum brake as on the Blue Whizzer.

    These traditional features harken back to that long-remembered Whizzer that I rode 57 years ago!

    In your opinions, which should I buy? (Each is offered at $1150 +tax & one-time license)

    Old Hal will trust to your judgement, Gentlemen!

    HAL
     
    Last edited: Oct 28, 2008

  2. RdKryton

    RdKryton Active Member

    Hi Hal
    You will get people on both sides of this issue. I personally like the auto clutch. Mine originally came with the slip clutch. I am glad I changed to the auto clutch because it has better slow speed manors but the auto clutch needs some special attention too. The manual clutch might be the right choice for you.

    Jim

    You like the way I didn't make the choice for you? lol
     
  3. Hal the Elder

    Hal the Elder Member

    That's What I Like...

    ...an uncommitted, unbiased Moderator! :???:

    HAL
     
  4. JE

    JE Guest

    My Whizzer has the 70mm auto clutch and rides great.
     
  5. Hal the Elder

    Hal the Elder Member

    OK...Keep 'Em Coming...

    I've got until Saturday for YOU ALL to make up my mind!

    HAL
     
  6. RdKryton

    RdKryton Active Member

    I am using the 70mm auto clutch too. I like it better than the 90mm because of the hills around here plus the fact I am not a small person. The manual clutch only comes in 90mm whereas the auto clutch comes in 90mm,70mm,and 50mm. The 50mm will give you the most power but a slow top speed. The 90mm is the fastest speed but not as much power on hills. The 70mm is a nice happy medium.

    Jim
     
  7. Hal the Elder

    Hal the Elder Member

    Still deciding...

    Hey...I'm not a little guy either (6' 2", 225 lbs.), but if I choose the auto clutch bike, I'm afraid I'll have to be content with whatever size clutch comes with it!

    As I've said before...my riding will be mostly at under 30 MPH on back roads and residential areas...no steep grades and NO highway riding!

    HAL
     
    Last edited: Oct 28, 2008
  8. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Hi Hal, Just buy both of them.........ha ha. Here are the facts. The manual won't work like the vintage Whizzer and is difficult to adjust so that the front belt "slips" when stopped and doesn't when riding. You should also give some serious thought to the rear coaster brake. The rear coaster brake on the new edition Whizzers should be avoided when possible, for 2 reasons. Reason number one is it will decrease in stopping power after a short time [common on coaster brakes], and secondly the rear hub may collapse because most are a Bendix "knock off" but the spoke flanges are pressed on, not machined as part of the hub. So if you go for the manual consider finding a good rear hub, and a belt tension kit [approx. $50.00] from a Whizzer dealer. If you go for the automatic, you should plan on having the clutch hub modified with a hardened bearing sleeve [I am in the process of rebuilding 51 of them in my shop at the moment, approx. $100.00 each]. As you can deduct from this information, just a few modifications will make the Whizzer drive system "bullet proof". It is possible to make the automatic work so well that some bikes can pull a "Wheelie" [just ask JBCruisin on this site]. I have both types in my collection, and enjoy each type. The automatic will allow you to go slower than the manual, but won't get as many MPG. If you live in a "hilly" region the automatic will be easier to use.
    Remember it is possible to convert the Whizzer from manual to automatic, or from automatic to manual, and I have had owners that have done just that. The automatic can also have the ratios changed by buying just the drive side, and the stock is 90 MM [3.5"] with an approx. ratio of 9 X 1, and the most common option is the 70 MM [2.7559"] approx. ratio of 11 X 1.
    Hope this information helps, either way, get a Whizzer. I always say "you either owned a Whizzer as a kid, or wished you did". Don't miss out on the fun again.

    Have fun,
    Quenton
     
    Last edited: Oct 28, 2008
  9. KilroyCD

    KilroyCD Active Member

    Hal, I'm a fan of the slip clutch, but that's probably only because I don't have the auto clutch. I have my slip clutch adjusted fairly well and I'm mostly happy with it, but it's not quite perfect. Like most auto clutches, you have to do a little tinkering to get it perfect. My issue is with pulley alignment, and once that is resolved it'll be where I want it.
    But what Quenton said about the auto clutch and its rideability (especially at slow speeds) is correct. I have found myself wishing for an auto clutch at times.
    The coaster brake issue is a major consideration. The modern Whizzer's coaster brakes haven't been known for the best stopping power, and the flange issue is a safety concern. I had the left-side flange on mine give way, and fortunately it was at a very slow pace or I might have ended up eating asphalt. The back-end started wobbling like a hula dancer. Whizzer replaced it for me under warranty (which I am thankful for), but I'm keeping an eagle-eye on the new one. I've also noticed a bit of a reduction in stopping power as time went on. I may relace it with a Bendix or New Departure coaster brake over the winter.
     
  10. Hal the Elder

    Hal the Elder Member

    Hey Quenton:

    Thanks for all the tech info...that's what I like!

    Being a retired engineer, I just "eat up" data, tech talk, specs, shop math, etc!

    I'll probably get the Auto, because of the rear drum brake, but I would still like to have the 90mm clutch pulley to give me a higher gear ratio.

    I don't want the higher ratio for speed, but just for having the engine run at a slower rpm, giving me that "chug-chug" exhaust note at low speeds.

    I don't like the sound of high-revving engines! When I had my 652cc Suzuki Savage "Big Single" thumper, I loved to cruise the neighborhood at 20-25 MPH in 4th gear, just to hear the SLOW pulse of the engine! I like it when I can actually COUNT the power strokes as well as feel them!

    I'm an extreme "Low RPM" man!

    HAL
     
  11. KilroyCD

    KilroyCD Active Member

    Then you would like the slip clutch. That's part of the reason I like mine! :lol:
     
  12. Hal the Elder

    Hal the Elder Member

    You Think So?

    Well...maybe I'm a bit hasty, but I think I've made up my mind........no........I KNOW I've made up my mind!

    It's the blue machine with the automatic centrifugal clutch! :smile:

    Now I only have 3 days to change my mind before I buy it!

    What's the most important event coming up within the next week?

    The Presidential Election? :mad:

    Nope!

    It's MY BUYING A WHIZZER MOTORIZED BICYCLE! :grin:

    HAL
     
    Last edited: Oct 28, 2008
  13. JE

    JE Guest

    lol......Good choice.
     
  14. RdKryton

    RdKryton Active Member

    Hi again Hal
    Low rpms are cool but you must remember that the Whizzer engine uses a splash oiling system so low rps (under 1000) are not good for the engine. Also the auto clutch is designed to slide into lock at about 2200 rpms so chugging may not be possible. That being said I love my auto clutch now that it is broken in.

    Jim
     
  15. Hal the Elder

    Hal the Elder Member

    Hey Jim:

    Well now, that's a disappointment! I was hoping the auto clutch would take hold just above idle!

    Is there an adjustment on the pivoting centrifugal weights inside the clutch that will allow an earlier engagement?

    Maybe it's back to the slip clutch again!

    Darn!

    HAL
     
  16. Kep1a

    Kep1a Guest

    I believe that lugging this motor especially when starting off is bad for it. You will find that once engaged it will remain so at much lower rpms than 2300. Then when you roll the throttle it will slip just a little until the rpm comes up again. All in all I like the auto clutch operation. It seems well matched to the engine operation. The CVT worries me if for no other reason than it is a reinvention of the wheel and replaces an auto clutch that once modified will be bullet poof IMHO. The manual clutch I did not like and suspect that frequent belt replacements will result. Low speeds and stop and go were a pain IMHO.

    Kep1a

    PS: my idle is set at between 1100 and 1200 rpm and it seems to do well at that setting. I am also assured that I will have adequate oil splash to cool and lubricate the motor.
     
    Last edited by a moderator: Oct 29, 2008
  17. Quenton Guenther

    Quenton Guenther Motored Bikes Sponsor

    Hi Hal, The automatic, once enguaged, will still continue to pull as low as 800 RPMs, unless you stop the bike. The automatic can not be adjusted or changed enough to alter the enguagement speed, but you will easily adapt to lower speeds by using the throttle. I have most of my motors set to idle around 1100 RPMs, but at idle with the clutch enguaged the bike will easily travel at 20 MPH, and if I want to go a little slower I just tap the brake to arrive at a lower speed.

    Have fun,
    Quenton
     
  18. Hal the Elder

    Hal the Elder Member

    HEY QUENTON:

    You said that at your 1100 RPM idle, your bike will go 20 MPH.

    Assuming that the engine will wind up to 5500 RPM, that would give you 5X20, or 100 MPH!

    Anyway, I'm glad to hear that low-speed operaton is possible with the auto clutch!

    HAL
     
    Last edited: Oct 29, 2008
  19. Kep1a

    Kep1a Guest

    Yup Quenten exactly what I find also and in most cases at the lower speeds letting off the throttle will not net a reduction in speed unless I am on an incline. If I want to go slower I have to use the brake and once slowed it maintains that speed. I should have specified that I make sure my idle is never less than 1100 and would rather see a small amount higher as opposed to anything lower for cooling and lubrication purposes. With the 70mm you can go slower than the 90 but the 70 is not as fuel efficient.
     
  20. KilroyCD

    KilroyCD Active Member

    Maybe I should qualify my earlier statement agreeing about liking the sound at low rpms. I do enjoy that sound, but I don't by any means lug the engine by staying at low rpms. I'm referring to the sound when I'm starting to accellerate. Because the auto clutch equipped engine is usually at a higher rpm at the lower speeds, it sounds like it's working harder. I like the sound of the engine when it's getting up to speed. It just has a really nice powerful note at the lower rpms.
     
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