Can anyone direct me to a website where i can order main jets for my spree?
Thanks
Mike
Ordering Main Jet
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- CHEVY-212010
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Ordering Main Jet
'85 Spree NQ57
'81 CT70
'99 GMC Sierra
'53 Chevy 3100
'81 CT70
'99 GMC Sierra
'53 Chevy 3100
Re: Ordering Main Jet
what size main are you looking for.if its a oem one check babbits online or ron ayers.
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Re: Ordering Main Jet
I was wondering this too. Thanks for the question and answer above.
What benefits do you get from a different main jet? Is it more a throttle response type thing or better
performance or both?
I have a 84-86 Spree that I would like to re-jet, last time I cleaned I believe it had a #65 stamped into it.
Im curious to see what it will do to the Spree.
Thanks.
G
What benefits do you get from a different main jet? Is it more a throttle response type thing or better
performance or both?
I have a 84-86 Spree that I would like to re-jet, last time I cleaned I believe it had a #65 stamped into it.
Im curious to see what it will do to the Spree.
Thanks.
G
Re: Ordering Main Jet
if your running with out the airbox you have to put a larger main jet to compensate for the more air flow going in.
Nothing like getting stroked!
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
Thanks to my sponsors
Nos Energy Drinks,themopedcompany.com,nwautoevents.com,Cycle Gear
90 honda dio sp 72cc
87 elite 50 s with 86cc watercooled mini stroke
87 elite 50 race bike mhr 72cc
91 yamaha tzr 250r
- CHEVY-212010
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Re: Ordering Main Jet
i have seen somewhere on the forum a link to a website to buy them, i just cant find it anymore 

'85 Spree NQ57
'81 CT70
'99 GMC Sierra
'53 Chevy 3100
'81 CT70
'99 GMC Sierra
'53 Chevy 3100
- Wheelman-111
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Re: Ordering Main Jet
Greetings:
Spreesea submitted:
It's like Bakaracer said, you don't get "better" performance just from installing a new jet. You get better performance by doing something that increases the engine's capacity to process a mixture of air and fuel. If you install a less-restrictive airbox, improve internal engine flow by enlarging ports, or plug on a de-restricted muffler, you must change the size of the jet to match the increased volume of incoming air.
Throwing on a bigger jet will simply make the mixture richer than ideal. This will decrease power and produce more soot due unburnt fuel which will deposit itself on the spark plug fouling it, and exhaust system, eventually blocking flow.
Installing a smaller jet will produce a hotter-burning mixture (fuel vaporization is a big component of temperature stability) that runs the risk of an overheated bore and seizure therefrom.
Spreesea submitted:
You may have that jet thing a little reversed. If teams of Honda engineers determined that the 65 jet was "Right" for a stock Spree, then it follows that any other size will be "Wrong".What benefits do you get from a different main jet? Is it more a throttle response type thing or better
performance or both?
I have a 84-86 Spree that I would like to re-jet, last time I cleaned I believe it had a #65 stamped into it.
Im curious to see what it will do to the Spree.
It's like Bakaracer said, you don't get "better" performance just from installing a new jet. You get better performance by doing something that increases the engine's capacity to process a mixture of air and fuel. If you install a less-restrictive airbox, improve internal engine flow by enlarging ports, or plug on a de-restricted muffler, you must change the size of the jet to match the increased volume of incoming air.
Throwing on a bigger jet will simply make the mixture richer than ideal. This will decrease power and produce more soot due unburnt fuel which will deposit itself on the spark plug fouling it, and exhaust system, eventually blocking flow.
Installing a smaller jet will produce a hotter-burning mixture (fuel vaporization is a big component of temperature stability) that runs the risk of an overheated bore and seizure therefrom.
Wheelman-111
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"ISO": '03 Vespa ET4 Malossi187 74MPH
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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