Only 90psi compression on a 150cc 2t stella

The original 2-stroke Genuine scooter and its 4-stroke manual and automatic offspring

Moderator: Modern Buddy Staff

Post Reply
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Only 90psi compression on a 150cc 2t stella

Post by chuckklr98 »

Thinking about just new rings and piston, but an upgrade might be nice. Is the performance worth the cost of the 166cc kits?

Thanks new to my $400 08 3600 mile beater, and this group.
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

It depends on what kind of performance you are looking for.
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

better than stock for sure
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

chuckklr98 wrote:better than stock for sure
Well yeah...but what are you looking for? Off line, speed, top end, street racer, mountain roads, flats, altitude, touring?

Is that the Malossi 166 kit you are thinking of. They like high revs, I would also at a minimum change the crank and beef up the clutch. Don't forget to rejet..
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

Just a little more oomph is all.
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

OK...it's tough to make any recommendations without knowing what you are looking to get. You will get all the help you need but you need to do your part too.

If you are looking for more "oomph" whick I guess means more power throughout the band I would probably suggest a DR 177 kit, higher performance pipe, upjet or go to a larger carb depending on what is in there now, and add a CHT. Timing will probably also need to be adjusted

It may be better for you to slap on a replacement stock top end and call it a day then go ride.

Here are the basics of moding

Fast
Reliable
Cheap

Pick two of the above
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

Dont wanna spend that that much. nothing more than rejet and topend thus the 166cc
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

I did a Malossi 166 kit. It was a lot more than a bolt on. Ported, upped the carb to a 24/24, P200 tree, and custom full expansion chamber on a P motor.

That thing would smoke almost anything off the line. The pipe would really kick in at about 6,000 RPM Malossi loves the high revs!

For a reliable kit with a little extra "oomph" I would go with this

http://www.scootermercato.com/Scooter-Parts/DR/KT00017

I run a CHT (minimum) on any kitted motor
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

BuddyRaton wrote:I did a Malossi 166 kit. It was a lot more than a bolt on. Ported, upped the carb to a 24/24, P200 tree, and custom full expansion chamber on a P motor.

That thing would smoke almost anything off the line. The pipe would really kick in at about 6,000 RPM Malossi loves the high revs!

For a reliable kit with a little extra "oomph" I would go with this

http://www.scootermercato.com/Scooter-Parts/DR/KT00017

I run a CHT (minimum) on any kitted motor
190 seems reasonable. Just need to go up two main jets sizes at sea level?
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

Start rich then lean out. What carb is on there now? I'm not going to make any specific jetting recommendations. Add a CHT
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

Have you gone over the motor and retorqued the bolts. I would definitely retorque the head bolts before doing anything else.
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

Pretty sure its stock, and no idea what cht is.
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

If you don't know what a CHT is I would suggest staying stock.
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

BuddyRaton wrote:If you don't know what a CHT is I would suggest staying stock.
just because I dont know what cht is, does not mean I cant wrench.
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

You can still wrench...you can also easily blow up a kitted motor. Look..I'm trying to help you out however it is now time for you to do your research, you to make your decisions, and you to assume the results.

A CHT is a cylinder head temperature gauge...it can give you an idea as to when the motor is getting close to seizing. In other words...the rear wheel totally locking up at speed.

Here is a good write up from MV

http://modernvespa.com/forum/topic48786 ... ght=gauges

Please keep us updated.
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
User avatar
jimmbomb
Member
Posts: 801
Joined: Fri May 20, 2011 1:00 am
Location: St Louis

Post by jimmbomb »

maybe find an old P200 and the sell the stella. Oomph city.
J H
[URL=https:///]Image[/URL] upload pics
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

jimmbomb wrote:maybe find an old P200 and the sell the stella. Oomph city.
solid scooters!
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

BuddyRaton wrote:You can still wrench...you can also easily blow up a kitted motor. Look..I'm trying to help you out however it is now time for you to do your research, you to make your decisions, and you to assume the results.

A CHT is a cylinder head temperature gauge...it can give you an idea as to when the motor is getting close to seizing. In other words...the rear wheel totally locking up at speed.

Here is a good write up from MV

http://modernvespa.com/forum/topic48786 ... ght=gauges

Please keep us updated.
than say cylinder head temp instead of using cht, Older folk dont think in text talk abbreviation.
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

chuckklr98 wrote:
BuddyRaton wrote:You can still wrench...you can also easily blow up a kitted motor. Look..I'm trying to help you out however it is now time for you to do your research, you to make your decisions, and you to assume the results.

A CHT is a cylinder head temperature gauge...it can give you an idea as to when the motor is getting close to seizing. In other words...the rear wheel totally locking up at speed.

Here is a good write up from MV

http://modernvespa.com/forum/topic48786 ... ght=gauges

Please keep us updated.
than say cylinder head temp instead of using cht, Older folk dont think in text talk abbreviation.
Please play nice. And please do not instruct me on what terms I should use. That is unacceptable. Also I believe you meant to say "then say"

That is an accepted term in the two stroke motor(you will see people use 2T for these words, this is not "text talk") world. This is not "text talk" this is basic 2T motor talk.

It is obvious that you did not even read the thread I provided a link to; the thread oopsclunkthud wrote. That is the best explanation for gauges write up I have seen. As I said, it is time for you to do your own research.

I have made an honest attempt to assist you. It is time for you to assist yourself

Good Luck

Out
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

BuddyRaton wrote:
chuckklr98 wrote:
BuddyRaton wrote:You can still wrench...you can also easily blow up a kitted motor. Look..I'm trying to help you out however it is now time for you to do your research, you to make your decisions, and you to assume the results.

A CHT is a cylinder head temperature gauge...it can give you an idea as to when the motor is getting close to seizing. In other words...the rear wheel totally locking up at speed.

Here is a good write up from MV

http://modernvespa.com/forum/topic48786 ... ght=gauges

Please keep us updated.
than say cylinder head temp instead of using cht, Older folk dont think in text talk abbreviation.
Please play nice. And please do not instruct me on what terms I should use. That is unacceptable. Also I believe you meant to say "then say"

That is an accepted term in the two stroke motor(you will see people use 2T for these words, this is not "text talk") world. This is not "text talk" this is basic 2T motor talk.

It is obvious that you did not even read the thread I provided a link to; the thread oopsclunkthud wrote. That is the best explanation for gauges write up I have seen. As I said, it is time for you to do your own research.

I have made an honest attempt to assist you. It is time for you to assist yourself

Good Luck

Out
LOL, THEN please stay away from my threads if you cant be nice.
User avatar
BuddyRaton
Scooter Dork
Posts: 3887
Joined: Sat Sep 09, 2006 10:08 pm
Location: Boca Raton, Florida
Contact:

Post by BuddyRaton »

It is not necessary for you to send me a PM telling me to stay off your posts.

This is Modern Buddy. I have the privilege, not right, to post on any thread on this forum.

You have the privilege of beginning a thread on MB (MB stands for Modern Buddy). You do not own the thread.

I have been polite and truly tried to help you, however your attitude may be part of the reason that no one else has offered assistance.

Do not concern yourself with me posting on the threads you appear to believe you have ownership of. I was very willing to assist you. This is no longer true.
"Things fall apart - it's scientific" - David Byrne
www.teamscootertrash.com

'06 Cream Buddy 125, 11 Blur 220, 13 BMW C 650 GT, 68 Vespa SS180, 64 Vespa GS MK II, 65 Lambretta TV 175, 67 Vespa GT, 64 Vespa 150 VBB 64 Vespa GL
chuckklr98
Member
Posts: 34
Joined: Thu Apr 19, 2018 6:55 pm
Location: 70452

Post by chuckklr98 »

;thank you, I'm more than willing accept advice, but not in the form of belittlement because I'm not familiar with your vernacular.
Post Reply