Started new thread Needed: parts for 1984 cr80 3/2/2019 12:50 PM

I am in desperate need of the following part numbers: - 22815-gc4-730 - 53214-gc4-731 or 53214-gc4-732 - 40544-gc4-730 or 40544-gm7-700 Parts can be new or used! If anyone has any of these please let me know or if you find them online somewhere that’d ... more »

This forum thread has 3 replies

Added reply in a thread Very difficult question about water pump 2/4/2019 6:57 AM

The atac system is terrible and has lots of issues and very high maintenance. That’s why exhaust companies make pipes that delete the system. The bike actually runs better without the atac system vs with it.

Added reply in a thread Very difficult question about water pump 2/3/2019 11:41 PM

Look at the exhaust manifold diagram. It all seems to connect with it. Sorry if my questions are vague or sound dumb, this is all new stuff to me. All the engines I’ve rebuilt have never had a governor or an atac system! I know it’s beneficial to delete ... more »

Added reply in a thread Very difficult question about water pump 2/3/2019 11:36 PM

After looking more at the parts diagram you’re right. I’ve never seen a governor before, I assumed it was part of the water pump since it’s all connected on the water pump shaft. What does the governor do exactly? Limit too speed? Is it connected in ... more »

Added reply in a thread Very difficult question about water pump 2/3/2019 5:10 PM

The two pics are parts of the water pump and the last 3 are showing the hole and the cylinder

Started new thread Very difficult question about water pump 2/3/2019 10:28 AM

So I have a 1984 cr80 that is very close to being finished with the rebuild. I’m currently installing the water pump assembly then will be putting the new clutch in and the engine cover. While looking at the diagram and parts, I finally realized how

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This forum thread has 8 replies

Started new thread 1984 cr80 suspension help 10/4/2018 8:42 AM

I’ve been doing a restomod on this 1984 cr80 for a while now. I’m really trying to get it all done soon so I’m going into overdrive and gonna knock everything out quick. I want to upgrade or rebuild the current suspension. Does anyone know where I can ... more »

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Started new thread CANNOT find dowel pin anywhere online!! 6/4/2018 5:38 PM

I’ve been desperately trying to find two new dowel pins for my 1984 Cr80 crankcase before I rebuild the engine. The dowel pin is part number 90705-639-000. It’s a size 8x20.5. I’ve looked up the part number and went to every site that sells the OEM pin ... more »

This forum thread has 6 replies

Added reply in a thread what caused the air leak that destroyed my engine? 1/20/2018 9:52 AM

No I didn’t cut anything

Added reply in a thread what caused the air leak that destroyed my engine? 1/20/2018 9:12 AM

A leak down tester costs over $250!!

Added reply in a thread what caused the air leak that destroyed my engine? 1/20/2018 9:10 AM

Yeah I have v force 3 reeds and a pro circuit pipe

Added reply in a thread what caused the air leak that destroyed my engine? 1/20/2018 9:09 AM

Fuel was 32:1 and I was running 93. I used all balls crank bearings and a namura top end with cometic gaskets.

Added reply in a thread what caused the air leak that destroyed my engine? 1/19/2018 5:08 PM

Carb was freshly rebuilt. Crank bearings were new. The crank might have been out of True since I did reuse the old one. What do you mean squish set too tight?

Added reply in a thread what caused the air leak that destroyed my engine? 1/19/2018 4:08 PM

So just use a gasket only? You think it’ll seal ok?

Added reply in a thread what caused the air leak that destroyed my engine? 1/19/2018 4:07 PM

There was no up and down play

Added reply in a thread what caused the air leak that destroyed my engine? 1/19/2018 4:06 PM

Lol no I ran it once then took the exhaust off cause I saw a little black oil coming from it. I didn’t word that very good!

Added reply in a thread what caused the air leak that destroyed my engine? 1/19/2018 1:08 PM

The boots are in perfect shape. It looked like the oil was dripping right from the seal where it touches the crank. I did install new crank seals, but I reused the crank. Also when it was running i took off the exhaust at one point and there was a lot ... more »

Started new thread what caused the air leak that destroyed my engine? 1/19/2018 11:55 AM

about 2 months ago i had just finished building my 2001 honda cr125. I rebuilt the engine and had everything torqued to oem specs. This was my 3rd time rebuilding a 2 stroke engine and i used all the proper tools. It ran fine at first while on the stand ... more »

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Added reply in a thread New clutch hard to squeeze? 11/30/2017 10:18 AM

I've decided to rebuild it again. I just wanna know what caused it to do this. It wasn't the throttle. Maybe a seal went out?? Idk. I'm taking the motor off the frame now and then I'll tear it open and see what everything looks like. Could it be that ... more »

Added reply in a thread New clutch hard to squeeze? 11/26/2017 5:00 PM

I've rebuilt two engines completely already and they went smoothly. Never had problems like this. The throttle wasn't stuck open. I bought this bike to flip and make a few hundred but I already went over my budget. I could've still make profit but not ... more »