2 Stroke 1998 CR80R

SRAD97750

SRAD97750

Moderator
Staff member
And there is a 1.0 stamped on the crown of the piston? Something doesn't make sense here.
You're giving me specs I'd run a new Standard piston kit in. Any photos of the cylinder? -BIG DAN:thumb:
 
Trfsrfr

Trfsrfr

SRAD97750:
And there is a 1.0 stamped on the crown of the piston? Something doesn't make sense here.
Click to expand...
Yes. Those were my thoughts as well.
And I appreciate all your replies. It didn't make sense to me either.
I can take pics of whatever y'all need.
It is entirely possible that I mis-measured, but I triple checked, and am using a calibrated Blue-Point set of instruments.
At this point I am going to assume that my measurements are incorrect...2+2 MUST equal 4...
 
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SRAD97750

SRAD97750

Moderator
Staff member
Ok,
I do not see a sleeve.
47mm is a std piston. But the 1.0 is a legitimate statement as well.
Just be sure to get the 47mm kit!
-BIG DAN:thumb:
 
Trfsrfr

Trfsrfr

Cool, thanks for the info.
I ordered the 47mm total rebuild kit and it'll be here tomorrow. Also just ordered new tires.
Now I want to rebuild the shock, but have haven't been able to find the parts.
Anybody got the hookup for this?

Also, any advice for the rebuild is much appreciated. It's been since 10th grade (1987) that I've done it, when I rebuilt my first bike, a Honda MR50.
And no I wasn't riding a MR50 at 16 years old. It was shop class and I needed a project. The 50 seized up years earlier and was the perfect candidate.
 
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Mihylo33

Mihylo33

Trfsrfr:
Cool, thanks for the info.
I ordered the 47mm total rebuild kit and it'll be here tomorrow. Also just ordered new tires.
Now I want to rebuild the shock, but have haven't been able to find the parts.
Anybody got the hookup for this?

Also, any advice for the rebuild is much appreciated. It's been since 10th grade (1987) that I've done it, when I rebuilt my first bike, a Honda MR50.
And no I wasn't riding a MR50 at 16 years old. It was shop class and I needed a project. The 50 seized up years earlier and was the perfect candidate.
Click to expand...


Take your time, take pics for reference, use the proper tools. That includes a manual.
Hopefully you have a case splitter and a clutch basket holder.
 
Mihylo33

Mihylo33

Trfsrfr:
Cool, thanks for the info.
I ordered the 47mm total rebuild kit and it'll be here tomorrow. Also just ordered new tires.
Now I want to rebuild the shock, but have haven't been able to find the parts.
Anybody got the hookup for this?

Also, any advice for the rebuild is much appreciated. It's been since 10th grade (1987) that I've done it, when I rebuilt my first bike, a Honda MR50.
And no I wasn't riding a MR50 at 16 years old. It was shop class and I needed a project. The 50 seized up years earlier and was the perfect candidate.
Click to expand...

This will help.

 
Trfsrfr

Trfsrfr

So do I really need to buy the special tools, or can it be done without?
I got the rebuild kit today, and would like to get this done ASAP and definitely before summer starts, but if I really need those 2-3 special tools it might have to wait a bit longer depending on how much they cost...

Edit - I now have in my cart at RMATV a crankcase splitter, a clutch/flywheel holder, and a flywheel puller.
Do I need anything else, like the crank puller/installer tool?
It's an extra $70.00 that I would rather not spend if I can do without it right now...
Or could I maybe get the crank puller instead of the case splitter? They're the most expensive items...
 
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Rolls

Rolls

For sure, you need the crank puller. IMO, you can live without the case splitter. The clutch holder is good to have also.
 
Mihylo33

Mihylo33

Trfsrfr:
So do I really need to buy the special tools, or can it be done without?
I got the rebuild kit today, and would like to get this done ASAP and definitely before summer starts, but if I really need those 2-3 special tools it might have to wait a bit longer depending on how much they cost...

Edit - I now have in my cart at RMATV a crankcase splitter, a clutch/flywheel holder, and a flywheel puller.
Do I need anything else, like the crank puller/installer tool?
It's an extra $70.00 that I would rather not spend if I can do without it right now...
Or could I maybe get the crank puller instead of the case splitter? They're the most expensive items...
Click to expand...

Sorry, just saw this.
I find it way easier to use the splitter and crank puller. Saves about 1.5hrs of messing around each time and you don't have to worry about dinging the mating surfaces of the cases.
 
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