Messages

How about rear sets for a Daytona ?

He just needs to use a dressing tool to clean the wheel, to be safe.
This should of been a quote to the grinding wheel remark.

Bosch points grease. What I've used on VW points for years.

Thanks for the reply. I currently have 1A1 cyl's, since they have the exh bleed. And my chambers fit those cyl. And from what I just read, the bolt pattern is different on 2V0 cyl's, so that limits my options.

Which 400 cyl's are best for porting ?
1A1's or 2V0"s ?

Thanks for the reply's.

Yea, that's what I was kind of thinking, since my boots need to be replaced, thought to confirm.

So Russ, where in Orange County are you ? I am in Mission Viejo.

And Happy New Year to everyone.

Hi & Merry Christmas.

Will 34mm carbs fit the RZ 350 & Banshee stock intake boots ?

I see there are some aftermarket ones that say they fit the larger carbs.

I needed to replace my tank, it was to far gone, so I picked up this NOS one that showed today, it has a couple minor flaws but nothing I can't live with.

There's a NOS one on ebay I was watching, but the guy want's $4,000 for it, which is ridiculous, and it's been there a long time, and I don't see it selling anytime soon.

I haven't done anything since my last post, other than buying a stand. Now I have some time, I'll get the motor out and apart and get the frame and suspension cleaned up. All the brakes are crap, have to figure out what to about them, I don't think there's much in stock replacement parts or new complete assemblies ?

I bought the bike in 84, parked it in 86. So, this was what was going on 35 years ago...

Memory was a little cloudy, but I kinda remembered RZ 350, so I just did a search, and they look to be the same. If I were to bore it I would consider updating the port work, but everything is still tight enough to run as is.  I wonder if the intake's on my heads are large enough to fit the VFORCE4 V4144-2 that fits the Banshee and RD's
Here are a pic of mine":

The pistons I had thrown in the wash bin, and just solvent brushed them clean, their was no blowby past the rings:

I finally got the chance to clean up the cyl's a bit and took some pic's.

I have been doing some reading on the specifics on my motor. I read that port locations effect performance, so I assume that the 35mm stock port location refers to the top of the exh ports location to the top of the liner, correct me if I'am wrong.

I mentioned previously about my motor having a big bore kit and using IT 175 66.75mm pistons. Now these pistons have a shorter pin height compared the the stock pistons, and to get these to work .220" was removed from the bottom of the liners, and apparently .040" was removed from the top of the liner to clean it up for copper gaskets. So that would make a stock exh port about 34mm from the top of the liner.

I measured several times and came up with a measurement of about 31.75mm to the top of the liner.

I used the 35mm port location because I don't think I have have 2VO liners, I believe their the earlier 400 liners that are 35mm to the top where 2VO liners are 38mm to the top, and the numbers I got from RD liner port maps on ERLENBACH RACING's site.

I hope everyone had a good thanksgiving. And I want to say I am glad it's finally over, I've started cooking @ 5am.

Yes I was asking about the squish clearance, or what I should ask, what is the factory deck height or squish clearance ?

The cyl's are marked on the sides 040/220, and I would assume that the tops were cut .040" and the bottoms cut .220" to make up for the shorter IT piston pin height, then Turner added steel spacers that went under the head bolts to make up the shorter cyl's.

What's the difference between the IT DT & YZ pistons ?

As for fuel, I ran premium, but here in California ours is 91.

I pulled the top end off today.

It's @ 66.75mm Bore - 2.628", Engine size @ 434cc. The liner spigots out the bottom of the liners measure about .125" thick each, that I believe can go 4th over 1.0mm should the need arise. The current clearances are acceptable, so I'll just have the liners lightly touched and go new piston kits.

I have a question for anyone in the know: What's the recommended piston clearance to top of the cyl on a 400 ?

That's interesting that it might not have been re-sleeved, but I am just going by what I was told, the guy I got the bike from said he got it from Turner in some type of trade deal. I may tear down the top end next week and take a closer look.  So what's the bore limit on a stock cyl ?  As of now at 66.25 mm the wall of the cyl's are .044" thinner which may not be an issue yet, but as walls get thinner they can start to distort then you loose ring seal.

I have a way to check this, if some one can measure the out side of the sleeve that sticks out of the bottom of the cyl, I would have a measurement I could compare mine too.

I am clearly not up to todays tech on 2 stokers, I am trying to recall what was done, I believe the reeds are from the RZ 350 which were some what larger than the stock ones. As for flat slides, their not needed to get it running.