Wheelman Blows His Horn
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Hooked
2010 S50 Modified "Punkin"; 2003 ET4 150 "ISO"
Joined: 18 Feb 2017
Posts: 463
Location: Deepinnaharta, Texas
Fri Aug 14, 2020 10:19 pm quote
Greetings:

Changed the standard (CHAMPION!) Spark Plug for an NGK Irie-Dium item for a cool $10 ($20 with shipping - Thanks Scooter Parts Co...) My trained Spider Monkey collapsed with PTSD and went away to Rehab, leaving me to try to wheedle and cajole the 5/8" plug socket into position. Mr. Piaggio, could you make it any more difficult to do such a simple, standard maintenance job?! It CAN be done, as I've shown, but add the ER visit for stiches to the wound cut by the frame edges getting your hands in there.

But I digress. The post is about getting horny. Specifically, replacing the anemic, completely unconvincing "Meep" horn with a - BLAAAHHH - air horn.
There's a little dismantling to be sure, but once the floorboard and glove box are off, its pretty easy. I even got the glovebox to reinstall on the first try, and the door actuator works about 60% of the time - actually an improvement.

The final location of the horn assembly is well below the louvers in the horn cover for optimal acoustics, but the thing is so loud it doesn't matter. Texting Prius Pilots will be resoundingly corrected should they drift into my lane!

ISOHornBatt.jpg
We start with an Inline Fuse from O'Reilly's. Replaced the 30 Amp unit for a 10. No sense setting the scooter on fire if a wire wears through.

ISOHornRelay.jpg
The horn comes with a relay, cheap as it is. The stock horn connectors serve to activate the relay, leaving only the Hot Line from the battery and the line to the horn to attach.

ISOHornAttach.jpg
Here the connections are made and the relay affixed to the handy "Ear" of the stock horn bracket

ISOHornLocation4.jpg
Lurking in the spacious area below the horn cover. You can see the threaded hole where I attached my simple spring steel bracket.

Molto Verboso
2006 LX150 (carbed) | 2007 GT200
Joined: 29 Jun 2016
Posts: 1076
Location: Toronto
Sat Aug 15, 2020 3:25 am quote
Nice write up! Thanks for all the detailed and labelled photos.
Hooked
2010 S50 Modified "Punkin"; 2003 ET4 150 "ISO"
Joined: 18 Feb 2017
Posts: 463
Location: Deepinnaharta, Texas
Sat Aug 15, 2020 8:25 am quote
Spark Plug Change Censored
Greetings:

Thank you Berto. I would've documented the spark plug change but there's not enough room between the head and frame to slide a slender cellphone in there. Plus the Forum Gendarmes would've censored the pics. Too bloody. Sheesh! Could they MAKE it any Tighter?! I seriously thought of using a holesaw to drill through the outer body, then use a plastic cap to cover the hole. Just my luck, though, I would make the hole in the wrong spot...

BTW that spark plug is the adorably tiny one from the 4-valve 50. The 150 is small already, but this one is absurd. I wonder just how small they can make a spark plug?

S50MJ80Plug.jpg

Hooked
2003 Vespa ET2
Joined: 05 Apr 2019
Posts: 346
Location: Cambridge, MA
Mon Aug 31, 2020 9:30 am quote
great write up on the horn...i was also able to shoehorn a stebel nautilus in my et2...
Hooked
2010 S50 Modified "Punkin"; 2003 ET4 150 "ISO"
Joined: 18 Feb 2017
Posts: 463
Location: Deepinnaharta, Texas
Mon Aug 31, 2020 11:30 am quote
Greetings:

Thanks Jixaw! The air horn volume is truly gratifying, isn't it?
Hooked
2003 Vespa ET2
Joined: 05 Apr 2019
Posts: 346
Location: Cambridge, MA
Tue Sep 01, 2020 5:42 am quote
omg yeah it is..i feel like i have a weapon...if i toot it, pedestrians jump onto the sidewalk...

i need to pick your brain about the windshield bracket bending project...i just put a medium windshield on..and its almost perpendicular to the ground..did angling it make a big difference? ..anything to keep in mind?
Hooked
2010 S50 Modified "Punkin"; 2003 ET4 150 "ISO"
Joined: 18 Feb 2017
Posts: 463
Location: Deepinnaharta, Texas
Tue Sep 01, 2020 5:49 am quote
Ned Flanders
Greetings;

Yes, the straight-up Faco brackets made me look like Ned Flanders riding a scooter. Nerd City.

Bending the struts of unknown metallic composition was a risk. You can't use heat without uglifying the finish. I happened to have a floor jack with a 5-foot hollow handle. I clamped the shield strut in a vise, then trapped the end in the jack handle. I applied torque to the handle just to bend it a couple of degrees, then slid the jack handle a few mm closer to the "angle" on the bracket and repeated, so as to avoid making ALL the bend happen at the same fulcrum. As I said, there's a risk of breaking the strut with ham-fisted force all in the same place. I think it came out quite well - the Jaunty Angle achieved.

I believe I showed some pics of the Bending Process in a previous post:
Wheelman's ET4 2003 "ISO"
Scroll on down to near the bottom.

NerdCity.jpg
Nerd city: Not enough bend in the strut bracket as delivered.

JauntyAngle.jpg
Better Aero possibly. Better Look for sure, at least I think so.

Veni, Vidi, Posti
946
Joined: 18 Jun 2007
Posts: 6163
Location: Acworth, GA
Sat Sep 05, 2020 6:33 am quote
That definitely looks much improved with the windscreen laid back like it is! Well done.
Molto Verboso
LXS 150
Joined: 13 Aug 2009
Posts: 1073
Location: The OTHER South Bay, CA
Sat Sep 05, 2020 1:57 pm quote
Re: Spark Plug Change Censored
Wheelman-111 wrote:
BTW that spark plug is the adorably tiny one from the 4-valve 50. The 150 is small already, but this one is absurd. I wonder just how small they can make a spark plug?
This small:

(The propeller is 12" across.)

Yes, it's a spark plug, not a glow plug.

Image credit: http://www.modelaviation.com/
Hooked
2010 S50 Modified "Punkin"; 2003 ET4 150 "ISO"
Joined: 18 Feb 2017
Posts: 463
Location: Deepinnaharta, Texas
Sat Sep 05, 2020 2:50 pm quote
Tiny Plug
Greetings:

Wow!!
I bet a plug like it will be standard in the new GTS 350.
Nice RC!
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