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I am upgrading my 1983 Spree.
Posted: Thu Jun 23, 2022 7:10 pm
by Bear45-70
I have a 48mm cylinder piston and rings and a cylinder head for my 1983 Spree and I need to port the block so this crazy so how much do am port the intake to work with my big carb and manifold with big reeds in it?
Re: I am upgrading my 1983 Spree.
Posted: Fri Jun 24, 2022 3:47 pm
by motormike
W-H-A-T ? ?
Re: I am upgrading my 1983 Spree.
Posted: Fri Jun 24, 2022 5:59 pm
by Bear45-70
Will I do have a 2018 KYMCO Like 150i and a 2005 Yamaha 125 Vino scooters also but the faster Spree has always interested me so I found the 48mm bore cylinder, piston and rings and a cylinder head and bought it but it is goona need so porting to run right, so that is why I am asking.
Re: I am upgrading my 1983 Spree.
Posted: Sat Jun 25, 2022 6:29 pm
by motormike
Sorry, can't help you Bear.
I still don't like Spree, and too old to change my way.
I'm just shocked and amazed that you have returned after 9 years.
Good to see you sir. Maybe Wheelman can give you some advice.
There's a few guys here that could jump in. Good luck Bear...motor... 
Re: I am upgrading my 1983 Spree.
Posted: Thu Jun 30, 2022 8:51 am
by IvyOperator
Glad you found a bore kit in this current year! They're getting rare. I don't think you would need to port the block to get good gains from a BBK, I would try it without porting. If you do end up wanting/needing to port everything, I can't say for certain. I personally would coat what I wanted to remove with a sharpie/paint marker and go at it until all of it is gone, then test the performance.
Re: I am upgrading my 1983 Spree.
Posted: Thu Jun 30, 2022 6:01 pm
by Meatball
The Spree’s af05e will never be as quick/fast as a Like150 or Vino125 no matter what you do. BBK or not. Even if you try to put taller gears in it for top end, the acceleration will be a total slug because theres no variator. If you set it up with short gears for decent acceleration your top speed will be 40mph and spinning 10k rpms while doing it. You just cant win with that motor. Save yourself the money and headache and just swap in better motor….then modify that one.
Re: I am upgrading my 1983 Spree.
Posted: Fri Jul 01, 2022 2:49 am
by Bear45-70
Meatball wrote: ↑Thu Jun 30, 2022 6:01 pm
The Spree’s af05e will never be as quick/fast as a Like150 or Vino125 no matter what you do. BBK or not. Even if you try to put taller gears in it for top end, the acceleration will be a total slug because theres no variator. If you set it up with short gears for decent acceleration your top speed will be 40mph and spinning 10k rpms while doing it. You just cant win with that motor. Save yourself the money and headache and just swap in better motor….then modify that one.
I don't expect blinding preformance just an improvement over stock and I do have the drawing for a Spree variator if it comes to that. But I really need some info on the porting because the Spree doesn't have much power as is and I don't think the bigger bore would like the stock porting.
Re: I am upgrading my 1983 Spree.
Posted: Tue Jul 05, 2022 3:29 am
by Bear45-70
WHAT? No body can give me an answer to this. I find that hard to believe.
Re: I am upgrading my 1983 Spree.
Posted: Tue Jul 05, 2022 10:03 am
by IvyOperator
Bear45-70 wrote: ↑Tue Jul 05, 2022 3:29 am
WHAT? No body can give me an answer to this. I find that hard to believe.
I would port the intake first, wikispreedia has a page for this.
http://hondaspree.net/wiki/index.php/In ... _the_Spree
As for porting your transfer ports/block... can't say for certain about performance gains.
Re: I am upgrading my 1983 Spree.
Posted: Tue Jul 05, 2022 1:51 pm
by Bear45-70
The trouble with that page is that it shows only the stock intake and manifold. However I will be using an adapter and a large intake with four reeds and a 23mm carb, so not much help there.
Re: I am upgrading my 1983 Spree.
Posted: Tue Jul 05, 2022 2:50 pm
by motormike
Bear45-70 wrote: ↑Tue Jul 05, 2022 1:51 pm
The trouble with that page is that it shows only the stock intake and manifold. However I will be using an adapter and a large intake with four reeds and a 23mm carb, so not much help there.
Sounds like you are attempting something that nobody currently on this forum has any info to share. Also, 23mm carburetor is probably way too much for the engine size. You are adding an adapter and big reed set-up, so this indicates an unknown that only you can determine how much to remove from ports.
Re: I am upgrading my 1983 Spree.
Posted: Tue Jul 05, 2022 5:46 pm
by Bear45-70
I was afraid of that and the 23 is the exact size I should have for a 67 cc engine at least that is the number I cam up with.
Re: I am upgrading my 1983 Spree.
Posted: Wed Jul 06, 2022 7:20 pm
by Bear45-70
Oh, I see, I only have a 21 on my 80 cc Aero 80 and the 67 cc engine is quite a bit smaller so a 20 at the most and maybe even a 19 which is only 2 cc's bigger than the stock Spree carb.