1st time poster

[SupraLuda]

Hello everyone!

My overall opinion of site is pretty cool, lots of good tricks for overall upkeep and performance.

From a negative standpoint, you sure can tell lots of kids are on here (most threads goto s*** within the 1st couple responses). For christ sakes, learn how to spell. I need a thug-thesaurus to decrypt a lot of what's said.

Ok, off my soap-box... onto what I have:

Although I was around Sprees when they came out in the 80's (was like 10yrs old) ... I never bought one, then had the opportunity last Friday on a '85 Spree. The owner said he had it for a couple years and never got it to run... even had his buddies monkey with it a bit and no such luck. I bartered him down to a sale price of $150 for a non-running scoot. Got'er home and had her running within an hour or so (drained bad gas and unclogged the carb jets). Maybe had her doing 25mph by time all was said and done. No bad, considering I'm 200lbs and this thing is 22 years old.

2 days later (after reading about every post on this site) I did the following mods:
1. Intake - much easier than expected, spent maybe 20min
2. Exhaust - not bad either, backside center cut out - drilled 3 extra holes per baffle

[SupraLuda]

Note the ridge before the grinding... this is what you want to remove or smooth out



Note the 2nd or inner baffle location - visable in image. The 1st or outer is highligted in yellow with the angle of the exhaust pipe being in red. I just bent the 1st down to get to the 2nd... had I know the locations, I wouldn't have cut the center of the muffler so far back. For now... I opted for 4 holes in each baffle vs complete removal. Also, notice this was done on the backside to preserve the STOCK appearance.

[burnt_toast]

looking good, good mods.

[mopedman]

nice

[darat]

Thats a bad * overview..

[SupraLuda]

d*** page timed out...

Basically, I realised the previous owner used RTV silicon for the jug/case gasket which was leaking. I got new gaskets, then broke the top ring putting the jug back on.

After getting new rings (and my milled head back), during install... I broke 2 pieces off the skirt of the pistons rear side.

I was * - and continued to throw the b**** together!

NOTE: condition is untuned with intake mod, unfinished exhaust mod - need plate welded back, milled head, stock jetting, open airbox and WITH a broken piston.

http://www.esnips.com/doc/05e34142-ffdd ... e/MVI_0266

http://www.esnips.com/doc/f13e1537-454a ... a/85-spree

[noiseguy]

Nice... check out the SB50 parts in perf tech docs. There's a larger reed block available too.

I did a similar mod on my exhaust, but I just ended up cutting the exhaust after the first baffle, which gets rid of the 2nd baffle and 2 other tubes. It doesn't look stock, but it's lighter.

[MySpree]

haha, you seem like a nice guy! ha!

[SupraLuda]

Well, things aren't going as good as I expected...

This morning, I got the exhaust welded and she fired right up, not too loud - but def had lost the put-putt sound. So I ran it around the hood for a few laps without anything more added in the vid's, no side panels, no airbox, etc...

The speed gain was crazy, however I'd only reach 25mph around 2/3 throttle... WOT after that was almost instant bog.

Then I was stupid an put everything back on including a new filter in the airbox... top speed dropped down to 15mph, now this pig won't run at all. Also, got the kickstart installed today... lots of fuel in the air, maybe the plug is fouled or something. Heard a bit of back firing during the many start attempts this afternoon.

[noiseguy]

The speed gain was crazy, however I'd only reach 25mph around 2/3 throttle... WOT after that was almost instant bog.

OK, that is lean surge... your jetting isn't rich enough. Read up on drilling jets or jet some larger ones to play with. You need to upsize your main jet.

[burnt_toast]

The speed gain was crazy, however I'd only reach 25mph around 2/3 throttle... WOT after that was almost instant bog.

OK, that is lean surge... your jetting isn't rich enough. Read up on drilling jets or jet some larger ones to play with. You need to upsize your main jet.

yeh, definitely if your're just running an open carb/open filter. And try some plug chops to see how the engine is doing.

[mopedman]

i have a good piston i would sell you for 7 bucks + 5 for shipping

[hrnytrtlsgsxr]

pretty interesting on how you say things is my opinioin. That's just my opinion and you would have rubbed me the wrong way but some others seem to like you. It's just me I guess but this what i seen. You read the tech docs. Then you are telling how you are suppose to open up the intake. Then when there is a problem you are asking what's wrong.My problem with that is telling how to do a modification when it very well seems like you do not know that much about 2 stroke. That would * me off saying you are not humble even when you don't know alot. I also believe that you are the type that researches alot on things and think it to be truth with out practical application. Well that's my take. Good luck with the spree.

[SupraLuda]

...blah, blah, blah...

hrnytrtlsgsxr everyone has the right to their opinion, in this case I believe you to be very wrong. And I pose to you --> where once in this thread do you see me asking a question?

The pictures WERE posted as ref., which mind you don't really exist on this site. Lots of talk, threads, but no "visuals"... not even in the tech doc section can you find them.

Nothing exists without practical application my friend... what works for you may not for me, a prime example would be the airbox: you'll find scoot's running w/ and w/o, aftermarket vs stock, etc... jetting is yet another prime example; some do it some don't.

Have a nice day!

[noiseguy]

Tip... buy an extra pulley for the pulley mod.. that's something else that requires tuning.