Bean Oil's Happy Time Cruiser

Here it sits ... and here! ... after it's maiden voyage; a break-in ride of about 20 miles all over town Wednesday afternoon.

Rode another 10 or so yesterday... the thing just keeps getting stronger. I love the popping 2-stroke idle. It sounds a little bigger than 48 cc's... Hee!

(I'm using a 25:1 mix (5 oz) of Motul 800 premix oil and 87 octane for the first gallon; after that I'll drop the mix to 32:1 (4 oz). This is excellent oil; it is one of the best oils available today from what the local 2-stroke pros are saying.)

Rode another 5 miles this evening and now the motor is really starting to run smooth, clean and strong! It takes some restraint not to run this motor to redline! Bwaaaaaaap! LOL. But I'd like it to last a little while...


Here's some of what went into putting this "kit" onto this coaster brake cruiser:

Custom engine mounts... this is the rear engine mount which I made after some basic machining lessons by my friend Anton...

Front engine mount... I made this one too. To be given access to this Korean version of the venerable Bridgeport mill is an incredible luxury for a project like this... I wish I could afford one of my own.

I modified the kit's rear sprocket; countersunk the bolts to clear the brake arm and then "swiss cheesed" the thing for lighter weight...

I was compelled to punch some holes into and round the sharp, square corners on the stout but cheesy chain tensioner bracket (I simply had to)... but thinking it would be mounted this side out, not in... (the adj. slot needs to be positioned one way)

Bought a better (it's a pit bike application) twist throttle and some red grips...

Put the kill switch right by the clutch...

Screwed the kit's fuel valve facing inwards, out of the way for a cleaner look...

Tried to wire the CDI box as cleanly as possible under the circumstances (circumstances being that I wanted to freaking FINALLY RIDE THE THING lol)

It all works! It's nice to ride, and so far, reliable!

And in this last pic, some removable lights if I think I might not make it home before dark...

There's a few more details I need to take care of: things like cutting off excess stud threads, using heat-shrink tubing instead of vinyl tape, etc... but I'm having too much of a good time riding it!


Thanks for stopping by to take a look.

:)~
 
Thanks, everyone!



None whatsoever. Though there's indeed slilghtly less material in the sprocket thickness (your concern) at that precise location, there's not nearly enough torque on the fasteners to effect any actual tensile strain on the sprocket's steel at those bolt holes... but there is enough fasteners' clamp load to prevent any rotational walking (or whatever) in that location.

We're not pumping 600 lb-ft through there. LOL. But your thinking, in theory, is valid.


:)~

point taken. Your version looks sweet - I'd love to do that to mine some day. At the very least I'd like to swiss cheese it a bit - that sucker is heavy!
 
That's totally awesome. I feel like I get smarter with every new bike posted here. So much to learn and so much taught.
Thanks for sharing it with us. Great job.
 
New TIRES!

Thanks again everyone for your comments and replies!


Meanwhile, back at the garage...

Well, since there is no provision (days later) to edit my first post to insert some new pics of some new shoes (GT Bicycles' "Simple Road Star" rubber), I'll stick the pics here in this post. They're almost like motorcycle tires! Hahaha... Enjoy!

Three-quarter rear shot

Profile view

Front tire

Rear tire

More tire

...and a better view of the kill switch location next to the improved clutch lever purchased from Dax!


I've got some real miles on her now and I'm chasing after the few things that need looking after like the rear hub bearing adjustment and grease level but the bike is solid and runs well. The clamp mounts remain solid and tight which seems to diminish the level of vibration inherent in these "Happy Time" 2-stroke installs. It really is a blast to cruise along on.

:)~
 
Two days later...

Bean Oil

I'm chasing after the few things that need looking after like the rear hub bearing adjustment
Well.

Turns out that the coaster brake assembly and rear axle's all f'd up... I'm all over the fix now, but the bike won't be running again 'til the weekend.

Did install a fresh NGK B6HS spark plug, though, and man! what a difference in how the motor starts and runs. Happy Time owners, throw that original spark plug into the trash!

:)~
 
It's kinda funny, but in reading Augie's review of the engine that ChrisHill sent him, I zeroed in on the fact that the kit came with an NGK. Hope your repairs go well.
 
Hey Bean, Just got through talking with you on Fri night chatz.
Looks really nice and let us know what happened with the rear end.
doc
 
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