Rebuilding a Spermy Vespa
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Molto Verboso
Vespa
Joined: 19 Jun 2007
Posts: 1187
Location: California
Fri Oct 02, 2020 1:30 pm quote
whodatschrome wrote:
Fatbear5 wrote:
Ok, moving on, my next step is to install a pair of new Carbone adjustable shocks, but I don't know how they adjust. From the factory they are set at the "deepest" setting and will only adjust to the left. As set, will they give the stiffest ride or the softest ride? Sorry, I just don't know.
Without delving too deep into suspension theories, those preload adjusters are used for setting "sag" height, not for changing the stiffness of the spring. Sag is how much the bike (or scooter) sags down when you sit on it. Ideally, there would be multiple spring rates to choose from when buying a shock. But that isn't going to happen in the scooter world (for the most part). So pretty much, if you're a heavy guy, then you would crank that preload adjuster all the way up so that the scooter doesn't sag too much in the back when you sit on it. Likewise, if you're lighter weight, then you would have less on the preload adjuster. It won't change the spring rate.
Wow that is awesome did not know thanks!
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P125X, P200E
Joined: 02 Apr 2011
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Location: Fresno, CA
Fri Oct 09, 2020 1:02 pm quote
I installed a new LED Flasher today along with LED bulbs for the turn signals and the tail light. What a difference! Thanks qascooter for the suggestion.

LED Flasher.jpg

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'64 Motovespa 150S (177) , '66 Allstate SF, '64 VBB, '66 180SS
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Location: S.Salem, NY
Fri Oct 09, 2020 1:57 pm quote
" It won't change the spring rate. "


Excellent info !
Molto Verboso
2007 Stella 150
Joined: 02 Nov 2019
Posts: 1116
Location: Rochester, Minnesota
Sat Oct 10, 2020 6:23 am quote
Fatbear5 wrote:
I installed a new LED Flasher today along with LED bulbs for the turn signals and the tail light. What a difference! Thanks qascooter for the suggestion.
Electronic flasher made a big difference in mine even with a standard bulb. I was curious and tried it with a standard bulb first.
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P125X, P200E
Joined: 02 Apr 2011
Posts: 740
Location: Fresno, CA
Wed Oct 14, 2020 8:48 am quote
I seem to recall reading that the mixture screw in the back of the carb affects only the idle speed, is that correct?

If so, I'm thinking that I should be focusing on the main jet for the proper performance. Right now I'm running rich with a 120 jet so I will be working my way down to smaller sizes. Spermy has a stock top end with an SIP Road One exhaust.

2020-10-13 14.34.47.jpg

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P125X, P200E
Joined: 02 Apr 2011
Posts: 740
Location: Fresno, CA
Fri Oct 16, 2020 2:33 pm quote
Well that was a surprise!

I took Spermy out for a test run yesterday and all was looking and sounding good as I was running probably 50-60 mph (the speedometer is next week's project) when all of a sudden I heard that awful sound of the engine shutting down... slowly as if the throttle was twisted to Idle, not suddenly, as with a sieze. I drifted over to the side of the road, found a shady spot (94 degrees in Fresno at that time), opened up the carb box and found that the hook from the carb slide had slipped out of the female linkage in the carb box. Fortunately, I had my 11mm socket wrench with me and was able to loosen the carb nuts enough to lift the carb up and drop the hook back into the linkage.

When I took it all apart later, I found that the hook rod had at one time been bent and then straightened, but not straightened well. As a result, the hook slid into the linkage at an angle that wasn't tight enough to hold it in place. I replaced it with a hook rod from an old carb and now all is well.

2020-10-16 14.31.48.jpg

Molto Verboso
08 GTS 250, 79 P200E, 62 Allstate
Joined: 11 Jan 2006
Posts: 1757
Location: Florence, OR
Fri Oct 16, 2020 3:54 pm quote
I love it - I had the same thing happen to me - out in no-mans-land along the coast. I used the glovebox leatherman to give a little crook to the hook. Now when I'm twisting the throttle to WOT, I don't twist too hard when I hit the limit...

I'm glad things are running for you!
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P125X, P200E
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Location: Fresno, CA
Fri Oct 16, 2020 9:29 pm quote
I'm still concerned about my jetting. Since I was getting a black plug using my 120 main jet, (see my 10/14 post) I have been using smaller and smaller jets until now I'm down to a 112 but my plug is still looking sooty.

My next jet is 109 but I'm afraid that that may be too lean and I'll damage my piston. For that matter, I'm nervous about running the 112.

I'm running a stock top end with an SIP Road 1 exhaust... does anyone have any opinions on a 109 jet?

112b.jpg

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P125X, P200E
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Posts: 740
Location: Fresno, CA
Fri Oct 16, 2020 9:34 pm quote
Thanks QAscooter. Yes, I have a tool kit with (nearly) everything for a roadside emergency, however it is currently in my other scooter. I'm still tinkering with Spermy and haven't officially made him my Primary Ride so I haven't yet transferred all the accessories from the old to the new. Maybe it's time to do that.
Ossessionato
73 & 74 Rally, 76 ET3, 80 P200, 06 PX150, 61 Ser 2, 65 Silver Special, 86 & 96 Elite 80s, 2015 HD Road Glide Special, 2011 Ural Tourist
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Location: Oceanside, CA
Sat Oct 17, 2020 12:41 am quote
Normal jetting for a P200 with 24/24 carb is a 160/BE3/116 MJ. With the aftermarket exhaust I'd add 4 to the MJ and go with a 120. Since you live in 100*F temps I'd even go to a 122.

Black sooty plugs are a good thing!
Molto Verboso
2007 Stella 150
Joined: 02 Nov 2019
Posts: 1116
Location: Rochester, Minnesota
Sat Oct 17, 2020 5:35 am quote
Fatbear5 wrote:
I'm still concerned about my jetting. Since I was getting a black plug using my 120 main jet, (see my 10/14 post) I have been using smaller and smaller jets until now I'm down to a 112 but my plug is still looking sooty.

My next jet is 109 but I'm afraid that that may be too lean and I'll damage my piston. For that matter, I'm nervous about running the 112.

I'm running a stock top end with an SIP Road 1 exhaust... does anyone have any opinions on a 109 jet?
Is that a wide open throttle run, plug chop check? If not you maybe rich in other areas of the throttle and not WOT. Main jet is responsible for the last 3/4 or so of the throttle.
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P125X, P200E
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Sat Oct 17, 2020 7:57 am quote
Black and sooty is good? I didn't know that, I thought plugs were supposed to be brownish but I'm happy to know that I'm not running rich. Thanks MJRally

I'm going to go back to 120 or 122 since that 112 really worries me.

No, I haven't done a proper plug chop... I've just been doing my normal riding around and examining the plug after that. I supposed I should do it correctly soon.
Ossessionato
Joined: 26 Oct 2015
Posts: 2689

Sat Oct 17, 2020 3:36 pm quote
Iíve been running a 128 main in my stock P2 and a ( Sito+, drilled air filter). Itís a bit on the rich side during the hot temps during the summertime, but come Fall when the temp drops itís pretty much spot on. Iím pretty much always on the highway, so my rich jetting has suited me fairly well. I donít know if anyone else running as rich as me though for a stock engine. Usually most are around a 122 to 125 main.
Jet Eye Master
PX221 Malossi, O tuned PX200 and some motorbikes
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Location: London UK
Sun Oct 18, 2020 12:19 am quote
Black and sooty is not the ideal colour. What are the other parts of the main stack? Might have alternate P200 jetting.
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P125X, P200E
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Location: Fresno, CA
Sun Oct 18, 2020 2:51 pm quote
My main stack has a 160 on top, a BE3 in the middle, and now a 120 jet on the bottom. Should I change any of those?
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P125X, P200E
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Location: Fresno, CA
Sun Oct 18, 2020 3:17 pm quote
I had a good test run today!

I did about 15 miles and nothing broke, nothing stopped working and nothing fell off... and I got up to 62 MPH, which is plenty fast for me. All in all, that adds up to a pretty good day.

Next step is replacing the steering column lock and then pulling the front fork to find out why there is a hitch when I turn the handlebar. Both will be new experiences for me.
Jet Eye Master
PX221 Malossi, O tuned PX200 and some motorbikes
Joined: 14 Jun 2017
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Location: London UK
Sun Oct 18, 2020 3:22 pm quote
160 BE3 120 is near enough traditional P200 jetting. This should not be black and sooty when running a SIP exhaust. Something is wrong and first guess would be the old SIP exhaust is slightly blocked.
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P125X, P200E
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Sun Oct 18, 2020 7:24 pm quote
Hmmm, ok, I can look at the exhaust and maybe BBQ it. I know that most people have the SIP Road 2, but mine is the SIP Road 1
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P125X, P200E
Joined: 02 Apr 2011
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Location: Fresno, CA
Fri Oct 23, 2020 6:50 pm quote
Spermy has the blue tail light and my other scooter has the red one. They are both supposed to be 1980 P200s. Can anyone tell me why there are two different lights for the same model?

Spermy.jpg

Red.jpg

Member
Joined: 14 Jan 2018
Posts: 44
Location: H-town, TX
Fri Oct 23, 2020 7:49 pm quote
Fatbear5 wrote:
Spermy has the blue tail light and my other scooter has the red one. They are both supposed to be 1980 P200s. Can anyone tell me why there are two different lights for the same model?
Tail light on blue scooter is original US spec tail light, some refer to as 'tractor light'. Red scooter is Euro style tail light. My guess is someone prior to you owning the bike changed out the red scooter's tail light for a Euro one. Easy swap that some people do for different aesthetics.

Hope this helps.
Jet Eye Master
PX221 Malossi, O tuned PX200 and some motorbikes
Joined: 14 Jun 2017
Posts: 2449
Location: London UK
Sat Oct 24, 2020 2:14 pm quote
Notice how the red scooter's light seems to fit? Like it was designed for the P range scooter by the same guy.
There are now more than a few versions of the euro light but the red scooter's one is the Italian original.
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P125X, P200E
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Sun Oct 25, 2020 10:43 am quote
Ok, so it's just a matter of personal preference and I like them both so I'm good. Thanks for the explanation.

I'm going to be selling the red P200 on Craigslist, and here on the forum, next week so I hope whoever buys it likes the euro version.
Molto Verboso
Vespa
Joined: 19 Jun 2007
Posts: 1187
Location: California
Sun Oct 25, 2020 4:28 pm quote
delayed reply
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P125X, P200E
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Mon Oct 26, 2020 8:15 am quote
hibbert wrote:
delayed reply
Huh?
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P125X, P200E
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Thu Oct 29, 2020 1:28 pm quote
Well thar's your problem!

Spermy has been running well but the speedometer has been way off. At 60 mph by GPS the speedometer shows only 40-45 so I sent it off to Steve at Speedometer King.

Iíd not dealt with him before, but I was really impressed with his service. He actually called me to give me an update and to tell me that there might be a problem with the worm gear on the front wheel. That was new territory for me so he walked me through the process of removing the gear and checking it out. The pics show that he was right.

IMG_6909.jpg

IMG_6911.jpg

Molto Verboso
Vespa
Joined: 19 Jun 2007
Posts: 1187
Location: California
Thu Oct 29, 2020 4:33 pm quote
That's great Fatbear these are the kind of corrections that make owning Vespa so satisfying. I removed my earlier reply had noticed I was late and unnecessary.
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