"MotorNewsBoy"

tyrslider · #1 10-29-2009, 01:31 AM

I would call this more "BoardTrack Inspired" (maybe "MotorNewsBoy") as the owner prefers it to have a more upright riding position.

The frame is a Worksman recovered from a barn it shared w/ a 900 lb Hog. I suspect he was drawn to the bike w/ "itching post" eyes 'cause the wheels were folded over in addition to other, more superficial, "hog damage". In fact that's when I realised that Worksman wheels (at least mine) are not laced up properly (<<<, and not <<>). Hmm... kinda reads like "Airplane" under Over, over Under, vector Victor; you get the idea.

Forks from Raleigh upgraded w/ a Fox Vanilla damper 'n' spring w/ 1 1/8" headset and steerer. Spring might be stiff but we'll give it a try 1st. Lifan 98cc 2.5 HP FlatHead motor. Doin' a 6 speed shifter transmitted in front and Below the motor. Has a rear drum brake; haven't decided for the front but we have options. IRC Metro tires to keep the rubber side down! Wide crank spindle is going to be a must

Been takin' some lessons from this site and others; we're gonna do a simple in frame gas tank 'tween the top tubes.

The plumbers seat tube is a nice touch but it's gotta go!

I'll have it mocked up and running soon I hope. then a quick strip down and off to powdercoat matte on flat or flat on matte don't know haven't decided.

The motor mount is finished and I'm making bearing carriers for the jackshaft that'll mount up on the front underside of the motor mount for rigidity and alignment ease.

I don't have any need to bypass the governer other than it doesn't lend itself to throttle/cable control; I 'm not looking to make the motor spin faster. Less reduction necessary!

Anyway, pics so far!

dmar836 · #2 10-29-2009, 08:41 AM

Good job! I would have thought the wheels would have lasted but not against a 900lb hog.
Could you build a spacer to fill the area under your U-bolts - between your motor mount and frame tubes?
Dave
KC

tyrslider · #3 10-29-2009, 09:35 AM

Thanks! I could make spacers (= time & $). But the front ubolt is not tight in the pic and the rears don't need a spacer. These motor platforms nestle right down into the frame and because they fit so well they don't require being over torqued to stay in place. And by mounting the bearing carriers to the platform the motor won't try to torque itself or the jackshaft out of position. On the right side the opening, is going to be covered by chainrings.

A swivel is another way to hug the frame a little more!

dmar836 · #4 10-29-2009, 11:13 AM

Seems like a pretty good idea. Keep us informed!

Kevron99 · #5 10-29-2009, 01:44 PM

Quote:

Originally Posted by tyrslider

I would call this more "BoardTrack Inspired" (maybe "MotorNewsBoy") as the owner prefers it to have a more upright riding position.

The frame is a Worksman recovered from a barn it shared w/ a 900 lb Hog. I suspect he was drawn to the bike w/ "itching post" eyes 'cause the wheels were folded over in addition to other, more superficial, "hog damage". In fact that's when I realised that Worksman wheels (at least mine) are not laced up properly (<<<, and not <<>). Hmm... kinda reads like "Airplane" under Over, over Under, vector Victor; you get the idea.

Forks from Raleigh upgraded w/ a Fox Vanilla damper 'n' spring w/ 1 1/8" headset and steerer. Spring might be stiff but we'll give it a try 1st. Lifan 98cc 2.5 HP FlatHead motor. Doin' a 6 speed shifter transmitted in front and Below the motor. Has a rear drum brake; haven't decided for the front but we have options. IRC Metro tires to keep the rubber side down! Wide crank spindle is going to be a must

Been takin' some lessons from this site and others; we're gonna do a simple in frame gas tank 'tween the top tubes.

The plumbers seat tube is a nice touch but it's gotta go!

I'll have it mocked up and running soon I hope. then a quick strip down and off to powdercoat matte on flat or flat on matte don't know haven't decided.

The motor mount is finished and I'm making bearing carriers for the jackshaft that'll mount up on the front underside of the motor mount for rigidity and alignment ease.

I don't have any need to bypass the governer other than it doesn't lend itself to throttle/cable control; I 'm not looking to make the motor spin faster. Less reduction necessary!

Anyway, pics so far!

Nice looking build you got there...Just a question what kind of motor you've got there? I am starting a board tracker built for myself and I am still gathering information. Thanks

silverbear · #6 10-29-2009, 02:12 PM

Boy, is that a snug fit!. I have a Worksman Newsboy ready for a motor come spring, so I'm very interested in what you're doing and will be looking over your shoulder as you go. Thanks for sharing.
SB

tyrslider · #7 10-29-2009, 10:32 PM

Thanks guys,

Made a little progress today w/ the bearing carriers. Starting to be able to see a mock up of the jackshaft. The pics are from my cell so forgive the quality!

dmar836 · #8 10-30-2009, 12:53 AM

Off the front of the mount? I can't picture it. Will you have a freewheel countershaft on your cranks?

Clotho · #9 10-30-2009, 01:04 AM

I have seen a few projects now with ducted fan motors without the ducts. What I haven't seen is anyone saying that they can be run under load in this fashion and that it works.

I wish you luck with your project and I hope you are successful but I would hate to see you put in many hours of work only to find that the motor overheats and fails.

mekano · #10 10-30-2009, 07:33 AM

I rode a bike with temporarily open fan 15 years ago. I still havent found the other half of my toe... The fan ate my shoe, sock and worked it´s way in to the bone.