TWO Broken Rocker Arms. GS700E.

If your motor hydro-locked and broke the cam chain I'd check the crank for tweakage.
Check TDC on all cylinders with a spark plug stop.
All the rockers are the same. Let me know because they are at my friends house on the mountain.

Hey, Chef, I'll probably take you up on that offer for two rocker arms. I'll need intake and exhaust for #1 cylinder (far left as you're seating on bike).

Anyone have any good sources other than dealership and Bike Bandit for parts? At this point I'll need a cam chain (endless), the three tensioner blades, two rocker arms (maybe) and a gasket kit including head and base gaskets and maybe a new valve cover O-ring/gasket.


All I did on Sunday was to clean / degrease the head and check for valve leakage by pouring acetone in the ports. #4's didn't weep at all. #1, 2, 3 began weeping acetone after 10 ~ 15 seconds and would drip about 1 drip every 5 ~ 10 seconds. I'll lap the valves, but I didn't think that leakage qualified as "bent valve" severe. I didn't do the exhaust valves yet.

I gave a quick peek into the cylinders, and they all looked good, too - no gouges or scratches. Probably just lightly hone the cylinders before reassembly.

Next will be pulling the cylinder & pistons, removing the peripherals (clutch, stator, oil liines, etc) and pulling the engine out. Then, splitting the cases.

So, the project is slowly chugging along...

Kirk

I have extra rockers if you need some.

You should like this then, one of the 12:1 Cosworths I have for my bike. I need to get a head built then I'll build the engine with the Cosworths. Just have to wait until I have the money to do a head. It should end up fairly close to Superbike specs of the day.

Very cool Billly, I'm thinking you will need a thread started ...

Kinda cool when someone else tears down their engine and its just like yours, good stuff.

You should like this then, one of the 12:1 Cosworths I have for my bike. I need to get a head built then I'll build the engine with the Cosworths. Just have to wait until I have the money to do a head. It should end up fairly close to Superbike specs of the day.

Kinda cool when someone else tears down their engine and its just like yours, good stuff.

The engine may of hydro-locked from gas in the oil.

Kind of where I was heading if he finds the petcock diaphram is leaking.

The engine may of hydro-locked from gas in the oil.

Yep, and #2's plug was black too, while the other 3 plugs were a perfect light tan.

Interesting about the petcock, I'll have to check it out, because the PO DID have trouble with the petcock. It doesn't work properly and he had cobbled some kindof valve in the line. I haven't really investigated it, but noticed it when I took the tank off.

Kirk

#2 looks like it was a little rich. Check the petcock and make sure you don't have fuel getting into the vacuum line from the petcock. You can just suck on the vacuum line while it's connected to the petcock and see if it holds vacuum. Hopefully you don't end up with fuel in your mouth. Could just be adjustment on that one carb but petcock leaks to #2 are fairly common.

Today's update:

Got the head off. Exhaust had to come off and 2nd cam out. The head looks in very good condition. No obvious bent valve nor any marks in any piston that might indicate contact. I'll try pouring acetone in the ports and watching the combustion chamber for weeping acetone. That's my normal yardstick for if the valves are sealing.

The chain doesn't look like it was a master linked chain. I found the one tiny piece of the link that has "pulled" open in this picture, but not the other side plate for the link.

I've decided I'll go ahead and split the cases and clean it out and replace the cam chain with an endless type. Partly because I also discovered quite a bit of 'chunking' on the front tensioner blade as well as noticed 'chunking' on the tensioner part that is on the inside of the valve cover. I didn't notice it earlier.

Maybe tomorrow I'll get the cylinder off and pistons off and all the 'external' bits - clutch, ignition, stator, etc. Father's Day though, so I'm not sure how much work I'll be doing on it.

[Nessism]

What's wrong with a rivet link cam chain? There are lots of peen tools available for cam chains.

[rapidray]

You have several choices here. Take your chances on a used engine. Take your chances on a cam chain with a master link....something NO factory has done in MANY years & for a REASON!!! Third, & I think your WISEST choice, rebuild the engine yourself, or with the help of friends, & split the cases & install a solid chain the way SUZUKI says to do it! The end! Ray.

[blowerbike]

They all come from a$$holes?

YES!!!
where shall i send your prize?

They all come from a$$holes?