My Spree to se50 motor swap, spree=40+mph!
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- Elite
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- Joined: Thu Apr 19, 2007 6:40 pm
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oh and i went for a drive a little while ago. Night and day difference. The top end isn't a HUGE improvement. About 5mph all around. Going up the same hills i go 5mph faster, on the flats im 5mph faster, and going down the same hills im 5 mph faster.
but the acceleration is crazy good now. It nearly wants to wheely, and before it was a turd taking off.
i just can't wait to put my big bore kit and gears on
but the acceleration is crazy good now. It nearly wants to wheely, and before it was a turd taking off.
i just can't wait to put my big bore kit and gears on
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- Elite
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time for my big bore!!!!!!!
motor removed
jug and head removed
new piston installed
almost done
and heres one for kenny
ive been breaking it in real slow. I've been letting it idle for 10 minutes and completly cool off. Ive probably done it 10 times today. I just started taking it up and down the street at half throttle. I put some yellow tape on the grip and sharpie marks on the handle bars so i know my throttle position. Even at half throttle it has no problem getting up to 40mph. At half throttle ive got the plug looking pretty good so far. 102 main jet
motor removed
jug and head removed
new piston installed
almost done
and heres one for kenny
ive been breaking it in real slow. I've been letting it idle for 10 minutes and completly cool off. Ive probably done it 10 times today. I just started taking it up and down the street at half throttle. I put some yellow tape on the grip and sharpie marks on the handle bars so i know my throttle position. Even at half throttle it has no problem getting up to 40mph. At half throttle ive got the plug looking pretty good so far. 102 main jet
- burnt_toast
- Veteran OG
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- Elite
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- Joined: Thu Apr 19, 2007 6:40 pm
- Location: oregon coast
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- Elite
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- Joined: Thu Apr 19, 2007 6:40 pm
- Location: oregon coast
well im now thinking my big bore kit can't breath, like my carb or something may be too small. It just doesn't seem to want to rev into high rpms. I need to put my stock gears back in and see how fast it'll go.
i got my rollers and center spring in today, but i don't think they'll help top speed, since i think my variator is already maxing out
i got my rollers and center spring in today, but i don't think they'll help top speed, since i think my variator is already maxing out
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- Spree
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- BMX
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My local bike and ATV shop has a bunch in stock and can order any others I have ever needed.HondaCharlie wrote:where do you guys find jets for the stock keihin carb? Anybody have a link?
Bear 45/70
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
'83 Aero 80 X 3
'84 Aero 80 X 3
'85 Aero 80
'84 Aero 125 X 2
'84 Aero 125
'84 Aero 125 X 2
'85 Aero 50
'85 Spree
- steffen707
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- Elite
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Re:
Hey pimpinPimpinSpree wrote:ya, that is correct. Welding was just too messy. Hard to get a clean weld, frame was too thin to weld to, and it was a pain in the but to not catch stuff on fire
Nice conversion. It was a pretty good idea to weld your shock mount to a bolt rather than have the bolt welded to the frame, I have had bolts that were welded at one end break off. You might have turned the channel 90 degrees and used it for a clevis for the top shock mount. You could have just slipped a bolt through it put a nut on it and had support on both ends.
Your welding will get better with time. It looks like you are using a flux wire feed welder. Work on surface preparation and also orientate your work so that gravity will be your friend, ei... weld from the top. You will get less bird dropping. Looking at your welds you might also want a slower wire feed for amount of electricity. Also don't be afraid to attack the lumps with a grinder and splatter with a wire brush or chipping hammer. I am not a professional either.
My welder was a flux wire feed and I converted it to MIG. Mig gives a better weld but isn't as good for use in the wind and requires even more surface preparation.
1989 Elite E with 86cc Dio
Rumia 50mm bore, mini-stroker, 28mm Oko, modified m-x pipe, Carbonfiber reinforced frame.
http://www.youtube.com/watch?v=gKSvdjxvBUA
Rumia 50mm bore, mini-stroker, 28mm Oko, modified m-x pipe, Carbonfiber reinforced frame.
http://www.youtube.com/watch?v=gKSvdjxvBUA
- RustyShackelford
- BMX
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Re: My Spree to se50 motor swap, spree=40+mph!
Let's hear some more updates!
I'm keeping a close eye on this thread.
I'm keeping a close eye on this thread.
'86 NQ-50 IN PROGRESS. STAY TUNED
Re: My Spree to se50 motor swap, spree=40+mph!
keeping an eye on this. i may need to copy your motor mods.
CH80