Broken valve spring?

[Guest]

I was checking my valve clearances today and I noticed that the bucket from the exhaust valve on #2 will not push up against the cam. The cam lobe will push it down but the bucket does not spring up to put pressure against the cam. Could it be a broket valve spring? Just a stuck valve? What am I looking at here?

[rapidray]

It could be a bent valve. That would be my guess. Pull the carbs, & exhaust to look into the ports. If it is a bent valve the head will have to come off. If it were mine, I would just be pulling the head already. Ray.

[razooki]

Well, I did buy this bike as a learning project and it's turning out to be just that. At least i'll have something to do this winter.

Raz

[mighty13d]

no matter what.. that's sounding like the head needs to come off. Take your time following the manuals and don't loose any parts and you will be all set. It's not that hard of a task.

[razooki]

Just curious what would cause a bent valve? I plan to change the valve seals while I have the top end out but what else should I look at?

[Nessism]

Check the valve to valve guide clearance and the condition of both the valve and valve seats in the head.

Bent valves are rare unless the cam timing jumped and the valve hit a piston.

[trippivot]

pull the cam out and get the bucket up and off look and see. chances are you are going farther . check all valve clearances first and write it all down all information , draw diagrams or take digital photos. it will help the first few times you tear down an engine.

[razooki]

pull the cam out and get the bucket up and off look and see. chances are you are going farther . check all valve clearances first and write it all down all information , draw diagrams or take digital photos. it will help the first few times you tear down an engine.

Valve clearances are checked and recorded. I'll start with pulling the cams and buckets since I'd have to do that anyway to remove the top end and then go from there. Is there a way to check the valve seals without actually taking them out since if I take them out I have to replace them? I know they're inexpensive but Z1 is out of stock on them and I don't want to pay the stealer their exorbitant prices.

[Steve]

Z1 is not the only supplier.

They're not the cheapest this time, either.

Alpha Sport 6.77
Babbitt's 4.01
Bike Bandit 5.01
Carolina Cycle 4.42
Cycle Re-Cycle 2.79
Full Throttle 4.41
Motogrid 4.26
PartShark 4.08
Parts-n-More 2.00
Ron Ayres 4.67
Z1 2.16

.

[salty_monk]

Depending on the Gasket kit you get you may find valve seals are included... I found one for my 1000G for about $45 for the whole kit.

You'll probably want to replace the base gasket at the same time as the head gasket anyway.

I can't find the link now but it's the same gasket Nessism used in his 1000 so he'll prob be able to tell you the brand.

Dan

[salty_monk]

Here you go... it was an Athena. Parts n More do them. Price is a little higher than I remember, maybe the $45 was on Ebay or different supplier.

https://www.partsnmore.com/motorcycle-gasket_sets.php?make=suzuki&category=gasket_set

Dan

[razooki]

You'll probably want to replace the base gasket at the same time as the head gasket anyway.

Dan

Excuse my ignorance but is the head gasket the valve cover gasket and the base gasket the one below - between the crank and the cylinders? Also are there any special tools that I would need to remove valves, seals etc.? I have watched the video on valve installation on BassCliff's site so I know about the C-clamp and cut out PVC pipe. I assume I can use the same set up to remove the valves but is there anything else?

[salty_monk]

There are 3... (or 4 if you count the breather cover gasket) starting at the top, valve cover gasket, head gasket, Base gasket. Base gasket is literally right on top of the transmission, head is about half way up & valve cover is about 1.5" from the top if that makes sense.

You'll need a valve spring compressor of the right size is the only thing I think - I haven't done one myself on a suzuki. I have seen pics of ones people have adapted to work on here. Someone will show you a pic.

Find out what Chef1366 uses - he changes a head for breakfast before going to work

[razooki]

You'll probably want to replace the base gasket at the same time as the head gasket anyway.
Dan

Ok, please help me understand this. If I'm only removing the top end whay would I have to replace the base gasket? I can see replacing the head gasket and the valve cover gasket.

Thanks,

Raz

[derwood]

you can remove the valves with a hammer and a deep socket