Rotary Car Club

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-   -   A fun project I'm sure many will enjoy. (

FC Zach 12-12-2016 01:46 AM

A fun project I'm sure many will enjoy.
The past few months I've been wrenching on an old Yamaha G1A I got from someone at work. The idea was to put a rotary in it and just have fun with it. This seed was planted from when the guys and I at RotaryRecycle were building the go-kart project. I had an idea at that time to use a golf cart differential or something similar but we were short on time for DGRR so the end result was simply a drive belt and pulley set-up which unfortunately ruined the practicality of having a go-kart (ask DJ :rofl: ). The thing would go really freaking fast once moving though!

After collecting dust under my house for years (and while in the middle of moving) I found motivation to do something new with the KM24. Here is the bitchin sweet '79 G1 the day I brought her home. .

The tires/wheels were in very rough shape (the rear especially), I needed to get new tires first thing before doing anything else so I could easily roll the thing around without having to air the tires each time. I was not aware how expensive these stupid tires were till I needed some, I just assumed an 8" golf cart tire with wheel would have been ~$40-50. . . I was sadly mistaken, the tires alone were $60 (each!) at Wal-Mart! Anyways, I found a much better deal on eBay for a wheel/tire combo and 10" DOTs to top it off. I definitely put lipstick on a pig :)

After mocking things up I found I needed a different intake manifold, one with a bend or else I'd have to move the engine further forward than I'd like. Once I got that, the fun could begin

I swapped the original carb out with another Tillotson, one with a built in fuel pump, rebuilt it too.

Since this was originally a two-stroke model (different components to spin engine opposite direction for reverse), most of the electronics/wiring weren't compatible with my application and to top it off the wiring was too complex for me to figure out how to retain something as simple as a solenoid so I stripped it all out. Keeping it stupid simple, I used trailer wire as a harness (the ends have connectors!) and a universal solenoid and ignition switch.

After removing the overcomplicated TEN wire ignition switch that was much larger than the simple universal piece I installed, I needed something to attach it. I made a plate using a sticker a friend made for a template. I thought this was a nice touch :)

Getting close. . Ordered a K&N and a drive belt. . the first belt I ordered was pretty darn close! just a little too small. I ordered two larger sizes

I got her running, now to get an exhaust made, adjust the carb, and hope one of the two belts I ordered works better than the current. . Anyways, hope y'all get a kick out of this, it sure has been fun so far! Here's a BookFace video, not sure if everyone can see it? ? If not I'll try something else.

djmtsu 12-12-2016 08:08 AM

Mid TN always keeping it weird.

speedjunkie 12-12-2016 11:46 PM

Haha that's awesome.

FC Zach 12-13-2016 07:07 AM

Thank you sir

t_g_farrell 12-13-2016 07:41 AM

Same size wheels as a mini. Will it do wheelies when its done?

I think when its done you need to take in on the golf course and see what kind of reactions
you get. No muffler!

TitaniumTT 12-13-2016 08:45 AM

Wait until you see people getting ready for a swing and shoot fireballs :rofl:

FC Zach 12-13-2016 10:52 AM


Originally Posted by t_g_farrell (Post 336939)
Same size wheels as a mini. Will it do wheelies when its done?

Ha Ha, I doubt it but if it did that would be kewl :auto:


Originally Posted by t_g_farrell (Post 336939)
I think when its done you need to take in on the golf course and see what kind of reactions
you get. No muffler!

I'm no golfer but even if I wanted to troll anyone, I don't think I'd even make it off the trailer without being confronted. . It's ReAlY LOUD! !


Originally Posted by TitaniumTT (Post 336942)
Wait until you see people getting ready for a swing and shoot fireballs :rofl:


TitaniumTT 12-13-2016 11:19 AM

What? Whenever I drive past a golf course in my FC I go WOT open WG :rofl:

Alicia_Martin 12-15-2016 10:16 AM

That Looking Awesome... Great Job! Drive it on golf course and get amazing reactions

FC Zach 12-15-2016 10:53 AM

Thank you!

almoststockfc 12-16-2016 06:26 AM

I have a new belt from our last project. I will check on what part # it is when i get home.

FC Zach 12-16-2016 06:39 AM

I called Jess about that belt wondering if he had it. . . It's probably close because the one on the cart right now (LM717) is the same one we had on the go-kart. Nevertheless, the two other belts I ordered arrived yesterday. Curious what you have though. Hell, I'm the one that ordered those but I've slept since then.

FC Zach 12-16-2016 08:02 AM

Here's the belts I made a note of. Belt '717 ordered first and as soon as I get the cart back from the guys down the street, I'll try '1039 and '1116. Let me know what you got.

almoststockfc 12-16-2016 09:22 AM

FC Zach 12-16-2016 09:34 AM

That's a 41 3/8" OD belt, way too small for my app. Thank you though.

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