Any 80's/90's two stroke fans in here?

[gimmie11s]

Took the ol girl to the dunes this past weekend for some shake down. She ran good until I lost the main coolant plug on top of the cylinder head -- no bueno.

Thinking about going down on domes though. Im running 20cc domes and only getting 160psi kicking compression. Think I'll try some 18 or 19's.

Otherwise... she rips!!

Some pic whoring...

 

[SVT-BansheeMan]

You guys up North can have all your snow back. I'm glad I was able to experience it but I'm done with it. I'm glad I got a temp gauge on my home because I blocked too much of the radiator at first.

I will be trying again tomorrow, for science. Sliding is fun but the lack of control gets old.

FYI the last time we had snow like this is 1985 from what the news says.

Took the ol girl to the dunes this past weekend for some shake down. She ran good until I lost the main coolant plug on top of the cylinder head -- no bueno.

Thinking about going down on domes though. Im running 20cc domes and only getting 160psi kicking compression. Think I'll try some 18 or 19's.

Otherwise... she rips!!

Some pic whoring...

View attachment 1872349


View attachment 1872350



View attachment 1872351

Any trouble keeping the front down? I can't comment on gains of adding compression. These days I rather keep is safer and easier to kick than chasing a few hp. I've done that twice though many years ago on my old set ups.

 

[PhoenixM3]

Now you ****ers have my looking at Kawasaki triples and old Rd350s….

 

[Fastback]

Now you ****ers have my looking at Kawasaki triples and old Rd350s….

Rd200 around town, and the Rd400 for longer trips. I dig it.

 

[SVT-BansheeMan]

I blocked the radiator too much for the run yesterday. The engine temp got to 225 for a very short while. I went ride today and everything was fine. I stayed far under the power band the whole time since the engine was taking a long time to heat up.

Around ten minutes in, she lost power as if one cylinder died. I went to kicke it and it wasn't much, almost a back fire. Bore scope looked as if the walls have slight scaring but the spark plugs both looked fine and rich.

Perhaps an oring in the cool head let go. The engine spins fine. I'll do a compression test and go from there.



Edit 1/23/25 7:40pm: compression test on both cylinders are even and good. I will see if the flywheel key messed up then perhaps take off the head.

Edit* 1/26/25. Figured it out. The flywheel came loose. Last year it came loose and pitted the cranks shaft bad. I cleaned it up and lapped it. Well, it didn't work for long. I'll send the crank to crank works to get fixed. These billet 10mil cranks aren't cheap.

 

[gimmie11s]

Well that thing is FUBAR aint it? holy crap.

Guess im lucky, cheap ass 4mill crank is only $500

 

[SgtPuddin]

Had a banshee and a blaster for my son. Cant beat those 2 strokes

 

[gimmie11s]

More sand time this past weekend... good stuff.. I dropped the domes in the banshee to 18cc from 19cc and she woke the hell up. Much better off the pipe!

Also have an update on the LT500 quadzilla coming later this week I'll share soon.... excited!

 

[gimmie11s]

Also have an update on the LT500 quadzilla coming later this week I'll share soon.... excited!

Finally got the cylinder back for the quadzilla.

Work done:

--reinforced rear "ears" aka rear mounting base holes
--fresh sleeve bringing it back to stock bore
--port work
--base and top deck machined for flatness

Excited to get her back up and going again!

 

[Klaus]

 

[blownstang01]

I had one of those Kawasaki 2-stroke triples when I was about 14 or 15. Never should have let that one go.

 

[wizbangdoodle]

I had a Suzuki GT550, 2 stroke triple many years ago. Very quick off the line to about 95 and then maxed about 110. Melted the center piston several times.

Politicians are not to be trusted.

 

[blownstang01]

Few pics of the crank. Ugly. Case halves are dirty, but in great shape.

View attachment 1869219




View attachment 1869220

The guy fixing up your crank ?..... 1M views · 6.3K reactions | "Perfectly Balanced Crankshaft – Simple & Accurate Method! | Syahrul Yusuf

 

[gimmie11s]

The guy fixing up your crank ?..... 1M views · 6.3K reactions | "Perfectly Balanced Crankshaft – Simple & Accurate Method! | Syahrul Yusuf

Love it!

 

[kazman]

 

[Klaus]

Someone buy this

No Reserve: 1980 Honda CR250R Elsinore

Bid for the chance to own a No Reserve: 1980 Honda CR250R Elsinore at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #184,972.

bringatrailer.com

 

[blownstang01]

Someone buy this

No Reserve: 1980 Honda CR250R Elsinore

Bid for the chance to own a No Reserve: 1980 Honda CR250R Elsinore at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #184,972.

bringatrailer.com

That's going to bring 6-8K. Thing is mint.

 

[Uncle Meat]

Someone buy this

No Reserve: 1980 Honda CR250R Elsinore

Bid for the chance to own a No Reserve: 1980 Honda CR250R Elsinore at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #184,972.

bringatrailer.com

That's going to bring 6-8K. Thing is mint.

Seen this yet? Last still in the crate 2001 CR500R on the planet.

U.M.


Speaking of 2001 CR500's... Mine is 95% back together. Should be ready to ride by next weekend!

 

[gimmie11s]

Seen this yet? Last still in the crate 2001 CR500R on the planet.

U.M.


Speaking of 2001 CR500's... Mine is 95% back together. Should be ready to ride by next weekend!

View attachment 1882940

Ive had a kx500... never a CR. Definitely on the list at some point.

Very nice!

 

[blownstang01]

That's going to bring 6-8K. Thing is mint.

Someone buy this

No Reserve: 1980 Honda CR250R Elsinore

Bid for the chance to own a No Reserve: 1980 Honda CR250R Elsinore at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #184,972.

bringatrailer.com

Ended up selling for $4,200. Damn, had it been local, I would have paid that. Do I need it ? No, but would have .....