The engine is 4 stroking, either from too rich or too lean. Run it where it does this and do a plug chop while it is doing it. The plug will tell you where the needle needs to moved. I suspect you are to rich on the needle, but that is just a guess.Petrock's 1984 Spree wrote:Alright well it's not the temp gauge.
I got the thing running again.
42,115 clip position 2 up from the bottom.
However, I have an odd loss of power right around 20mph
It sounds almost like bogging, the exhaust sounds different, and it gets a bit raspy.
Instead of bahhhhhhhh it's bah bah bah bah bah
Any ideas what could be causing that?
CHT Temps, what are yours?
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Re: CHT Temps, what are yours?
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Re: CHT Temps, what are yours?
Put the clip one up from the middle (or three up from the bottom).Petrock's 1984 Spree wrote:Alright well it's not the temp gauge.
I got the thing running again.
42,115 clip position 2 up from the bottom.
However, I have an odd loss of power right around 20mph
It sounds almost like bogging, the exhaust sounds different, and it gets a bit raspy.
Instead of bahhhhhhhh it's bah bah bah bah bah
Any ideas what could be causing that?
Does your 21mm oko have the power jet.
new best 1/8th mile time 9.647 seconds @67.155 mph 310lbs total weight
- Petrock's 1984 Spree
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Re: CHT Temps, what are yours?
Oh wow alright thanks!! I'll be trying the different clip position tomoro to see if that helps out.
My 21mm does not have the PJ on it
My 21mm does not have the PJ on it
Complete NOOB, sorry dudes
1984 Iowa Spreedio aka "Hammy"
-72cc Polini Corsa
-V8 Typhoon Exhaust
-21mm OKO & CT Mani
-ZX Trans 1k Contra
-8.44:1 Gears
-Polini 2 Shoe Clutch
-Koso Vented Clutch Bell
-Polini Ruckus Vari w/ 6.9g weights
-669x18x30 Belt
1984 Iowa Spreedio aka "Hammy"
-72cc Polini Corsa
-V8 Typhoon Exhaust
-21mm OKO & CT Mani
-ZX Trans 1k Contra
-8.44:1 Gears
-Polini 2 Shoe Clutch
-Koso Vented Clutch Bell
-Polini Ruckus Vari w/ 6.9g weights
-669x18x30 Belt
- Petrock's 1984 Spree
- Elite
- Posts: 768
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- Location: Iowa
Re: CHT Temps, what are yours?
Alright so now im a bit stumped.
42, 112
When the clip position is in the middle notch it is too lean. I get on it to go and when i given it gas it dies. No 4 stroking just dies.
I moved the clip down 1 notch and now it is too rich. 4 stroking off the line and not getting any speed.
Im stumped
42, 112
When the clip position is in the middle notch it is too lean. I get on it to go and when i given it gas it dies. No 4 stroking just dies.
I moved the clip down 1 notch and now it is too rich. 4 stroking off the line and not getting any speed.
Im stumped
Complete NOOB, sorry dudes
1984 Iowa Spreedio aka "Hammy"
-72cc Polini Corsa
-V8 Typhoon Exhaust
-21mm OKO & CT Mani
-ZX Trans 1k Contra
-8.44:1 Gears
-Polini 2 Shoe Clutch
-Koso Vented Clutch Bell
-Polini Ruckus Vari w/ 6.9g weights
-669x18x30 Belt
1984 Iowa Spreedio aka "Hammy"
-72cc Polini Corsa
-V8 Typhoon Exhaust
-21mm OKO & CT Mani
-ZX Trans 1k Contra
-8.44:1 Gears
-Polini 2 Shoe Clutch
-Koso Vented Clutch Bell
-Polini Ruckus Vari w/ 6.9g weights
-669x18x30 Belt
- Wheelman-111
- Moderator
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- Location: Deepinnaharta, Texas
Re: CHT Temps, what are yours?
Greetings:
4-stroking can occur in both Rich and Lean situations. What does the plug say? What CHT temperatures?
Check carefully for vacuum leaks, cylinder base and head gaskets and exhaust leaks. It is nearly impossible to tune if something isn't tight.
4-stroking can occur in both Rich and Lean situations. What does the plug say? What CHT temperatures?
Check carefully for vacuum leaks, cylinder base and head gaskets and exhaust leaks. It is nearly impossible to tune if something isn't tight.
Wheelman-111
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Most of my money is spent on scooterparts. The rest is just wasted.
"ISO": '03 Vespa ET4 Malossi187 74MPH
Flash 9: 2001 Elite SR Contesta 72 ZX Tran, 9:1 Gears, Stock Airbox/Carb/Pipe 58.8 MPH
Punkin: 2010 Vespa/Malossi S78, 61MPH
Re: CHT Temps, what are yours?
How does it idle?
---Describe the idle on a cold start
---Describe the idle once it's "warmed up"
-does the idle "improve" once it's warms up?
Does it run/idle with the choke on? (after the engine is warmed up)
Does it run with the air mixture screw turned all the way "in"?
You may have a possible intake leak....but tell us about the idle characteristics...
---Describe the idle on a cold start
---Describe the idle once it's "warmed up"
-does the idle "improve" once it's warms up?
Does it run/idle with the choke on? (after the engine is warmed up)
Does it run with the air mixture screw turned all the way "in"?
You may have a possible intake leak....but tell us about the idle characteristics...
'87 Aero 50 STOCK (only 350miles)
'87 Aero (AF16 Corsa-PG-Short-OKO24mm-8.44)
'86 Aero (AF16 Corsa-SEF Black-OKO21mm-8.44)
'98 Live Dio ZX - 50th Anniversary Edition 68cc
'92 Super Dio ZX - AF18 Corsa
Visit: http://www.airtoolsforless.com
'87 Aero (AF16 Corsa-PG-Short-OKO24mm-8.44)
'86 Aero (AF16 Corsa-SEF Black-OKO21mm-8.44)
'98 Live Dio ZX - 50th Anniversary Edition 68cc
'92 Super Dio ZX - AF18 Corsa
Visit: http://www.airtoolsforless.com
Re: CHT Temps, what are yours?
Turns out my Daytona temperature gauge was not the problem at hand, but instead the KOSO temperature sensor. KOSO North America was more than good to me by sending me a replacement at no charge. All is well and temp gauge is solid...!
'87 Aero 50 STOCK (only 350miles)
'87 Aero (AF16 Corsa-PG-Short-OKO24mm-8.44)
'86 Aero (AF16 Corsa-SEF Black-OKO21mm-8.44)
'98 Live Dio ZX - 50th Anniversary Edition 68cc
'92 Super Dio ZX - AF18 Corsa
Visit: http://www.airtoolsforless.com
'87 Aero (AF16 Corsa-PG-Short-OKO24mm-8.44)
'86 Aero (AF16 Corsa-SEF Black-OKO21mm-8.44)
'98 Live Dio ZX - 50th Anniversary Edition 68cc
'92 Super Dio ZX - AF18 Corsa
Visit: http://www.airtoolsforless.com