Here's Punkin

Need help with your non-Honda scooter? Yamaha, etc? Post here!

Moderator: Moderator

User avatar
benji
CB900F
CB900F
Posts: 1682
Joined: Mon Aug 10, 2015 9:15 pm
Location: renton,wa

Re: Here's Punkin

Post by benji » Fri Mar 31, 2017 10:52 am

Here's a few more tach like this one:
New style- 12v input, turns off when no signal, new illumination
http://m.ebay.com/itm/New-Deluxe-Large- ... nav=SEARCH

White version of what we got
http://m.ebay.com/itm/Marine-Tach-Hour- ... nav=SEARCH

Cheapest one I found. Like $5
http://m.ebay.com/itm/Digital-Engine-Ta ... nav=SEARCH

User avatar
Wheelman-111
Moderator
Moderator
Posts: 10951
Joined: Wed Oct 22, 2008 5:09 pm
Location: Deepinnaharta, Texas

Re: Here's Punkin

Post by Wheelman-111 » Sat Sep 22, 2018 5:06 pm

Greetings:

The overly-complex airbox on the Vespa S50 features a snake-like snorkel pipe that's flanged into the air intake of box.
vespaairboxbaffle_29708.jpg
vespaairboxbaffle_29708.jpg (64.53 KiB) Viewed 371 times
It didn't look all that restrictive, but appearances can be deceiving. Throttle response had become balky, stuttering as the Texas Temps climbed this summer. Add to that was a moderately annoying issue with backfires off-throttle. I had assumed - mistakenly from prior experience with Harley Carb Farts - that it was running lean. Marked improvement when I removed the pipe from the airbox intake - WAY better, more linear throttle response, and backfires reduced to one or two Chuffs when cutting the throttle rapidly. No chance yet for a decent top speed run but feels like it'll be faster too. I'll have to pull the spark plug to see if I need to jet up from 80 to 82, especially as the weather starts to cool...
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
Still Seeking Red PCX-150
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox, Carb and Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 99KPH

:coolcruise:

Post Reply