2 Trailer Loads of Death... Mostly Gyro X build thread

[chris r]

On 31/07/2017 at 22:43, chris r said:

fucke yeah this is awesome! 

skid vids plz

Good start with the snow. 

Now I want to see yours on grass plz 

Keep up the good work 

[Raizer]

Today I finished the rear brake cable extensions, should work well.
Removed the oil pump, cleaned it out, made sure oil was getting to the pump and sat there for ages with the drill in forwards lol.

Decided to try firing it up and testing the output of the stator wires with the multimeter in the hopes I could figure out how to wire it with those extra wires.
So since I still had no oil coming out of the line I drained the tank and added a couple litres of 50:1 and a good splash or 3 of oil, so it's probably closer to 25:1 now ha!

Then I hooked the ignition and pulse wires to the frame loom, rigged up some wiring for the coil and hit the starter.
No go, lots of not quite right sounding cranking, soaking wet plug, decent spark but no life beyond a couple little noises when the start was first pushed.
Racked my brain over it for a fair while, soo much mucking around trying different CDI, plugs etc and still nothing, then my boy Aaron pointed out a funny squeaky noise it made after cranking and while trying to figure out WTF it was I came to realize there was nothing coming out the exhaust at all when it cranked.
Loosened up the bolts holding the muffler to the head pipe, hit the start button and instantly it burst into life!



Gave the muffler a few whacks with a rubber mallet and blew it out with the compressor, put it back on and it ran, badly.
Wouldn't stay running more than maybe 30 seconds, throttle didn't do much and it just wasn't good.

The carb was leaking gas in a few places and the mix screw wasn't having any effect, so I tore down the Dio carb I was given and fitted a 75mj from another Gyro carb that came in pieces with the engines, blasted it all out with carb cleaner then compressed air.



Lets try that again...

Couple minutes idling and oil appeared from the line, going to be well lubricated until I run through the mix thats in the tank haha!
 

Got my multimeter on it, at fast idle the white wire gives about 25VAC, Yellow slightly higher.
White/green puts out .4VAC, yellow/green fluctuates between .5 to .9VAC.

So I'm just going to tuck the white/green and yellow/green wires away and pretend they don't exist.


Test ride tomorrow I think!




Oh and as I was leaving the supermarket today I was amazed to see this just sitting there at the exit!


Waited around for the owner for a while, ended up leaving a note expressing my interest in purchasing it, fingers crossed they call and I can nab it for an OK price as it may be easier to get the plastics from it than from Japan/Thailand as I'm not having much luck so far.

[Kimjon]

Flat out manly!!! Go the three wheeler!

[Raizer]

Instead of sleeping last night I spent way too long sharning with the owner of a small performance garage in Japan that specialises in crazy power Gyros and Dios along with the odd Kei car. Super helpful guy to talk to, he was amazed at someone playing with a Gyro in NZ.

Thanks to some advice from him I scoured Yahoo and UpGarage Riders for some specific bits and pieces, a few messages with a friend of mine in Japan and there ordered, paid for and soon to be delivered to him to be on-sent to me...

 

 

That's enough about that for now though, got to keep a few surprises for later!

Pic-less updates suck, so check out these suave mofos 

[kicker]

Ferrari Beat Gyro

 

[Raizer]

That's an interesting combo, I'm spotting AF35 Dio fork and wheel etc, Beat body (one would be cool for my spare engine...), looks to be possibly a Gyro S engine etc.

 

 

Finally took mine for it's maiden voyage with the new engine, lets just say that while it could have gone worse it really could have gone a LOT better!

So I hadn't test rode it since fitting the engine as the front plastics and lights are all off and I've been either working or it's been raining enough to put me off riding during daylight hours.
Decided today was the day, fired her up, started first pop and sat there idling happily while I put put my helmet etc on.
Hopped on and opened the gas, was bit spluttery but once the clutch engaged it mucked around gurgling a bit then took off (I fleetingly thought it was a bit rich on the idle circuit), it pulled fairly strong from about 5k right up to 45k and then took a few hundred meters to climb to a peak of 50k.
I put the initial splutter down to over oiling due to the fact it has rather oil heavy premix in the tank + the pump delivering oil as well.

All was going well, I was leaning side to side trying to get used to the much stiffer swingarm pivot (feels spring loaded now!) and then about 1.5k away from home it starts loosing speed and spluttering a bit at WOT, crap!
Pull into the local BP and fill it with 95 and go in and pay and explain WTF it is I'm riding to the bemused chick on the till.
Took a bit to start then was heavily either 4 stroking or missing right through the throttle range, max sped 30k and taking a long time to reach it!

Pretty crap video of it, the second bit I'm holding it back with minimal resistance.

 

As my first thought was fuelling I whipped the carb off and checked it was still clean, it was spotless, I still gave it a blast with cleaner and compressed air to be safe, swapped the 77mj to another 77mj I had just to rule out the slim chance it had been drilled or something.
Made no difference.

So next I started down the road of possible ignition/wiring issues.
Since the CDI is still the stock 1983 issue it was my first point of investigation, took the cheap "racing" CDI I've got and added a plug from a chopped up Chinese loom so it plugs right in to the stock loom.

Started fine with it, sounded a lot better at low RPM, max speed 20k and still a lot of spluttering.

Next we pulled the cover and fan off to check out the pulse coil

The rust was so bad the pick up on the flywheel was scraping the sensor when it passed!
All the magnets and the coils had crusty rust built up too and something had made a nest in behind the coils, thinking about it there was chucks of something like the nest in the blocked exhaust too lol.

Not perfect, but good enough for my uses.
Again no change, other than the dry scraping noise I'd been trying to ignore is gone, might have started a split second faster too.

Then I added a couple of plugs and tidied up the wiring a lot, it's still rough I know, but before there was a mess of bad connections and stuff like squashed female bullet connectors wedged into other female bullet connectors, only intended just to get it running


No change, fuck it I'm done for today.


Tiding up and since I had the socket in hand I pulled the plug, just cause

As I first thought, pig rich!

I'm now wondering if the enricher (choke) is actually turning off at all, or if it's just staying wide open and causing the 4 stroking etc, could explain why it's worse once it warms up too.

Also, again just cause...

That'll take some cutting and cleaver welding to squeeze in!

 

Got talking with the tuning garage in Japan again, he's put me onto these

Talking $400 just for the pipe and domestic shipping though, so closer to $500 delivered in NZ No thanks, I'm sure I can buy enough beer to convince a friendly welder to help out for less than that!

 

 

Also package one from Japan should be in NZ tomorrow or Monday, package two is being tapped up ready to send in my bud's "scooter bedroom" in Japan right now, so 4 days for that...

[xsspeed]

Lush. Turns out the one i see being driven everyday is one of our female structural engineers daily driver

[johnnyfive]

Pics

[Raizer]

Tell her she needs to upgrade to a nice late model Suzuki SJ50QT, I just happen to know of one that she can swap the old Gyro for...

 

 

And yeah, pics.

Lol

[M.H.]

Hydroforming

 

 

[Raizer]

I don't even want to think about the mess I'd make trying to do that!

Either a steel blob of crap or an exploding mess of water and shrapnel!

 

Pulled the carb, stripped it, checked it all over, only thing that stood out to me was I'd put the oring on the wrong size of the little washer on the mixture screw lol.
Fuel pump/vacuum tap doesn't stop flowing even without vacuum, but the float valve in the carb works so that shouldn't be the issue.

Had been using a Gyro emulsion tube, changed to the Dio one

Gyro, Gryo, Dio.

All three carbs had 35sj so I fitted the nicest looking one.
75mj, I've got 2x75 and an 88 so obviously I stuck with the nicest 75.


Enrichment valve seat looks fine to me, seal might be a little flattened but not too bad.


Put it all back together and... No change.
Crap.



Then Aaron asked when the degreaser I got on the cylinder yesterday while doing the stator would stop smoking?
Had a look on the stator side of the scoot and realized it was exhaust leaking from the head pipe to muffler join, it also dawned on me that while there was a fair bit of smoke coming from this small leak there was next to nothing coming out the tail pipe, hmmm...

Yeah the muffler's blocked almost solid again .


Pipe is now full of hydrochloric acid and hot water, leaving it to soak over night, fingers crossed it's all of the issue!
A super quick blip of the throttle with just the headpipe seems to suggest it is, too late to be running it with no exhaust though haha.

Need to sort out a proper pipe ASAP!

[MKD]

Mr moped nz's kozi pipe contacts maybe? Or one of those cheap jamarcol pipes off treatland etc?

[Mop Head]

Got a spare Aliexpress exhaust with no flange on it. That's been cut off. Or did you have enough laying around @Raizer?

[Raizer]

That could actually be rather useful, my stage6 is too long and would take way too much hacking to fit!

 

First lot of parts from Japan arrived, kevlar belt, variator kit etc...

 

Thinking of grabbing a pair of lights and making a bracket to set the front end up kinda like this

Probably not with blue lights though.

[Shakotom]

Deets on stage 6? 

In response to your question about my aliexpress light, quality seems pretty good. Has a stupid nut/small screw set up that holds lens into housing with a clamp that goes around the outside that's a bit fiddy but once tightened is fine as circled here

apart from that seems sweet quality. Takes same type of bulb as the LETS2 head light (pinched it to go in the lets) and I think is got provisions for a park light bulb also

mounting bracket is pretty solid.  Can't complai for the price. Here's a link 

Look what I found on AliExpress

http://s.aliexpress.com/uMVr6RjU

[MKD]

have a look for ruckus/zoomer twin lights, they have the steel frame and are on aliexpress - or a honda baja setup if you can find one?

[Raizer]

2 hours ago, Shakotom said:

Deets on stage 6? 

Look what I found on AliExpress

http://s.aliexpress.com/uMVr6RjU

 

Cheers for the link, they don't look too bad at all really, will keep them as an option for sure/buy them anyway cause I'm sure I'll find a use some time.

 

The Stage6 I've got is a Pro/Replica, it was for a Minarelli but I had it cut and welded for my original Frankenstein AZ project.

Nice pipe, high RPM powerband though and the real problem is I had it set up for a naked frame and now it fouls the Let's plastics a bit.

 

1 hour ago, MKD said:

have a look for ruckus/zoomer twin lights, they have the steel frame and are on aliexpress - or a honda baja setup if you can find one?

I'm watching a full set up on Yahoo, with the little rack and the indicators and all, if it goes cheap enough I will get my bud to whack a sneaky bid on it.

I'll likely end up with an LED lightbar tucked under the front deck too.

 

Tipped the hydrochloric acid out of my pipe just before, flushed it out with the hose then managed to burn a bit more carbon out too

Was just starting to cooch at that point, added a stream of compressed air and it really took off!

Pipe is pretty much as clear as I can get it, obviously as soon as I can change to something better I will be!

Result:

 

 

Now time to keep tidying it up a bit and start on the bodywork, need to save a bit more $$ before I can really get stuck into it though as I need to get plastics shipped from Japan.

 

[Shakotom]

That pipes badass

[Raizer]

On 7/08/2017 at 11:12, MKD said:

have a look for ruckus/zoomer twin lights, they have the steel frame and are on aliexpress - or a honda baja setup if you can find one?

Got a link to them on Ali?

I remember seeing them on there when I was playing with a naked AZ50, but all I'm finding now is really crap mesh covers.

Have found a few for decent prices second hand in Japan, but there summer holiday is cocking things up.

 

Still mostly just waiting on parts to arrive, ordered some bits today but thanks to the summer holiday in Japan there not getting sent until the 23rd.

 

Doing what I can while I wait though, after cleaning out my shed yet again I made up a little bracket for the coil so it's not just hanging out the side any more, finished up the engine-frame wiring connections (besides a few cable ties) and rode it around the block a few times.

 

Also had a go at plastic welding the worst bits of the step fairing

Not great, but it would do for a dirty old matt black squirt over at least.

Also the GC @MopedNZ hooked me up with a lush deal on an eBay/Aliexpress chamber

Just missing the headpipe as it was going to go on an old Suzuki

Plan is to attempt to turn it into something like this

These eBay pipes have a reputation for somewhat decent mid range and a fairly low peak RPM around 9000rpm, I'm going to end up with a longer headpipe on it than stock which will bring the powerband down a bit more, should be a good torquer rather than a top end screamer, which is somewhat what I'm after I think.

Might even buy a TIG welder and attempt it myself, my accountant says a welder can be written off as a legitimate business expense since I have mowers and the trailer that sometimes need zapping up...                                                                                                                            Never used a TIG in my life, fail at mig, so might be a really bad idea lol

[MKD]

2 hours ago, Raizer said:

Got a link to them on Ali?

I used to have them on a favourites list but seem to be gone now. Im sure i found them the other day though but cant see them now lol. Theres these out of the UK though, prettymuch the same thing https://www.shirebikes.co.uk/products/custom-baja-twin-head-light-suitable-for-use-with-monkey-bike-motorcycles