SO i got a 87' Spree

jmmcool · Post by **jmmcool** » Tue May 01, 2007 2:06 pm

So i got a 87 Spree, i wanna speed her up a bit. right now, its got a 80cc Dirtbike muffler on it yes i kno, wierd, but it seems to be about right she goes about 32. But what Things can i do to speed her up to a good steady 35 at least, maybe more any help would be nice, i've been readin all the stuff on here, still would like advice thanks!

jmmcool · Post by **jmmcool** » Tue May 01, 2007 5:47 pm

ANyone!

Streetglow · Post by **Streetglow** » Tue May 01, 2007 5:57 pm

pulley mod, but you'll loose a lot of low end.

Kenny_McCormic · Post by **Kenny_McCormic** » Tue May 01, 2007 8:02 pm

intake mod its im perf tech docs
http://www.hondaspree.net/phpBB2/viewtopic.php?t=2957

badspree · Post by **badspree** » Wed May 02, 2007 3:39 am

Shave .02 off head, advance the timing, larger main jet, adjust pilot needle circlip, free flow air filter. After all that's done do the pulley mod, and you won't lose any low end.

Use a 4 in beltsander to shave the head, need new headgasket $5.00

Pull the ignition pickup from behind the fan, oval the holes to the left, reinstall. Free

Drill out main jet to about .80 mm (only with k&n style air filter)Free, may have to buy a small * bit. This size can change depending on elevation, so you might want to start off at .76mm and work your way up.

Move pilot needle circlip up in position, mine is second from top, higher up is richer, you will have to play with this too. (this is underneith where the throttle cable goes into the carb) Free

Install k&n style air filter about $7.00 - $15.00 at any auto parts store

Pulley mod....Free

After all of this you should see 35-40 mph, depending on the condition of your motor, and how dead on you get your jetting...do plug chops!!!
Mine can hit about 42 mph if I have enought distance without braking (and no wind), and I weight 220lbs. It averages around 37-38 no problem, this is on a 85, a 87 should be a little faster.

gingerbreadman · Post by **gingerbreadman** » Thu May 03, 2007 8:53 pm

______________dio motor conversion. thats all i got to say.

SLiMeX · Post by **SLiMeX** » Sun May 06, 2007 1:56 am

badspree wrote:Shave .02 off head, advance the timing, larger main jet, adjust pilot needle circlip, free flow air filter. After all that's done do the pulley mod, and you won't lose any low end.

Use a 4 in beltsander to shave the head, need new headgasket $5.00

Pull the ignition pickup from behind the fan, oval the holes to the left, reinstall. Free

Drill out main jet to about .80 mm (only with k&n style air filter)Free, may have to buy a small * bit. This size can change depending on elevation, so you might want to start off at .76mm and work your way up.

Move pilot needle circlip up in position, mine is second from top, higher up is richer, you will have to play with this too. (this is underneith where the throttle cable goes into the carb) Free

Install k&n style air filter about $7.00 - $15.00 at any auto parts store

Pulley mod....Free

After all of this you should see 35-40 mph, depending on the condition of your motor, and how dead on you get your jetting...do plug chops!!!
Mine can hit about 42 mph if I have enought distance without braking (and no wind), and I weight 220lbs. It averages around 37-38 no problem, this is on a 85, a 87 should be a little faster.

My '86 Spree goes 26mph, how simple are these modifications to do, and how long will they take? I was reading that drilling the exhaust before the "baffles" (?) will give you 2-5? more mph, which I would love to do, but there aren't any pictures anywhere, I dont want to screw it up...