2 Stroke Bike Maintanance??? Pls Help ;)

[Eddieb]

It's an 82 Suzuki A100, the details of the 78 version are below (still the same I think)

If you lie flat on it like superman you should just about get about 105Km out of it.

One thing to keep an eye on with A100's is rust/rot around the headstock, if there appears to be a bit get it looked at and welded up, otherwise they are a fun bike. I'm sure with a better exhaust with a proper expansion chamber you could get a bit more go out if one.

[merv]

I had a 1970 A100 way back when many of you probably weren't born and just to add one comment if I remember rightly to check the gearbox oil (which Stoney is calling the engine block) there was a removable bolt that allowed you to check that the oil was up to the level of that hole. If not you put a bit more in until the oil leaked out the hole, then put the bolt back in.

[speedpro]

All I plan to do is up my skill, and learn correct lines / carrying speed through corners.

Carrying speed through corners - on an A100

You can't have had too good a look at the swingarm or shocks yet. It'll certainly 'up your skill' though. If you can stay on it consider that your skill has been upped.

You can make them go REAL fast. Years ago Suzuki NZ actually had genuine Suzuki race barrels for them with a bridged exhaust port. Cost in about 1994 was $15. A mate and I scored a fully worked A100 with the race kit forks/wheels and motor for I think $50. I'm pretty sure I could find all the specs somewhere.

[StoneChucker]

Carrying speed through corners - on an A100

You can't have had too good a look at the swingarm or shocks yet. It'll certainly 'up your skill' though. If you can stay on it consider that your skill has been upped.

You can make them go REAL fast. Years ago Suzuki NZ actually had genuine Suzuki race barrels for them with a bridged exhaust port. Cost in about 1994 was $15. A mate and I scored a fully worked A100 with the race kit forks/wheels and motor for I think $50. I'm pretty sure I could find all the specs somewhere.

Yes, but can you find me the race kit? PLEASE ??
Hey EddieB, how would I got about souping up the A100? (EDIT, as in what sort of exhaust and what sort of expansion chamber? Where from?)

[speedpro]

Whatever you do, do NOT just get the files out and rip into the exhaust port. Figure out what you want, or what the engine will handle, and then everything you do has to be to achieve that goal. I wouldn't think that the crankshaft would handle much more than 10-11,000rpm, probably less, without reliability problems. Lots of compression with maybe a watercooled head, pipe, CDI, yaada yaada yaada etc etc. As the engine slopes forward you can do a thermosyphon watercooling setup and it'll work real well.

Tuning a 2-stroke will drive you nuts. Figure out what you want before you start.

[vifferman]

ATF = Automatic Transmission Fluid....autos are full of wet clutch packs and gears wizzing around,just like a motorcycle gearbox.You have no need for all the additives an engine oil gives in your gearbox - oh,you can buy special motorcycle gearbox oils,but ATF is cheaper and works just fine and dandy.

Aahh!! {Cogs click into place}
I used to run ATF in my Elsinore's crankcase and forks, because someone recommended it, and it ran fine on it, but I never knew whether it was crapola or not.

[StoneChucker]

On such an old/simple bike, what level of skill would be required to dismantle an engine, and check if all's well?

The reason I ask is, when I accelerate there is a little "coughing" or lags in power. And, the engine sounds a little rough, almost like I can hear the piston going through the motions? But, I am comparing the sound to my current bike, as thats all I've got to compare it to! What does a healthy single cylinder two-stroke engine sound like?

I've already got my eye on points, gaskets, side covers and other A100 parts on E-Bay. Just can't find pistons. Hmm, what else is in an engine???

[speedpro]

Forget the points. You need to ditch that whole pile of crap on the left end of the crank and fit a CDI from a motocross bike like a KX80. If you are going to hot it up the stock ignition just won't do it.

It's easy to check the engine condition, undo the exhaust pipe to cylinder clamp, undo the 4 little 6mm nuts holding the head and barrel on and pull the lot off to have a look.

[FROSTY:Me]

On such an old/simple bike, what level of skill would be required to dismantle an engine, and check if all's well?

The reason I ask is, when I accelerate there is a little "coughing" or lags in power. And, the engine sounds a little rough, almost like I can hear the piston going through the motions? But, I am comparing the sound to my current bike, as thats all I've got to compare it to! What does a healthy single cylinder two-stroke engine sound like?

I've already got my eye on points, gaskets, side covers and other A100 parts on E-Bay. Just can't find pistons. Hmm, what else is in an engine???

SC --and speedpro--Guys --at the moment please KISS it
I agree with speedpro re performance mods but SC -FIRST just get ya ass out on the track.
Clean out the exhaust baffle. Set the points,clean out the carbie , put some sticky rubber on and do some laps.
Otherwise you're gonna have a very very frustrating time in the gargre sorting out the bike and no actual race time.
Once you've done a meeting and a couple of practices then start working the bike.
If it was me Id see if I could buy a complete A100 motor and build it up from the ground up
Actually no I wouldnt -id suspend the rego -do the tyre thing and go have a bunch of fun.
When ive outgrown the bike -reregister it and sell it as a beginner bike for a newbee biker.
ill bet ya $1000 a better race bike will come up for sale within the bucket world.

[bungbung]

the engine sounds a little rough, almost like I can hear the piston going through the motions? But, I am comparing the sound to my current bike, as thats all I've got to compare it to! What does a healthy single cylinder two-stroke engine sound like?

It's in pretty good nick, Dave. That is what they normally sound like.

[MSTRS:Me]

What does a healthy single cylinder two-stroke engine sound like?

Ring-ding-ding-ding-Ring-ding-ding-cough-braaaarrp (powerband just kicked in)

[speedpro]

Do what Frosty says

Strip off anything that's chromed, guards, lights, instruments, keep going till it stops and then put the last bit back on. Get the best tyres you can and go for it. Don't worry about the brakes, they're fine.

[StoneChucker]

Cheers guys, you're a good bunch. It's great having so much knowledge at my fingertips!

Unfortunately I have to register it now, and ride it to each meeting and I don't want to fit a towbar onto my car. Will have to tape up the head lights and such at the track / parking lot / wherever.

I have decided I'll ride it until I can't (IF/when it dies- don't think suz made these to be raced), and then try fix it / recon the engine by myself (to learn) and then either get someone else to do it or buy another bike.

Whens the next bucket meeting guys/gals?

[Ixion]

Cheers guys, you're a good bunch. It's great having so much knowledge at my fingertips!

Unfortunately I have to register it now, and ride it to each meeting and I don't want to fit a towbar onto my car. Will have to tape up the head lights and such at the track / parking lot / wherever.

I have decided I'll ride it until I can't (IF/when it dies- don't think suz made these to be raced), and then try fix it / recon the engine by myself (to learn) and then either get someone else to do it or buy another bike.

Whens the next bucket meeting guys/gals?

What sort of car ? I've quite successfully carried small bikes like that in the boot. Take tank off (usually easy enough) and wheels. It's surprising how easy they go in the mod of a medium sized car. Used to do this with my Honda 125 in the Marina boot (shaddup and stop laughing - the Marina coupe wasn't so bad in its day)

[StoneChucker]

What sort of car ? I've quite successfully carried small bikes like that in the boot. Take tank off (usually easy enough) and wheels. It's surprising how easy they go in the mod of a medium sized car. Used to do this with my Honda 125 in the Marina boot (shaddup and stop laughing - the Marina coupe wasn't so bad in its day)

I wouldn't laugh mate, besides, haven't you heard? I'm the hairdresser. Doubt it would fit in the MX5's boot. My CD stacker takes up most of the boot.