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Suggestions on valve stem seals

JTGS850GL

JTGS850GL

Forum Sage
Past Site Supporter
I'm rebuilding a spare head for my GS850 and replacing the valve stem seals in the process.

Any suggestions as to any particular valve stem seals would be preferred? I've seen Viton seals on ebay and OEM. Just wondering if there is any specifics I should be looking out for.
 
I've used stock, K&L and the Vitons on eBay They all worked for me. Oil them first before putting the valve through.
 
These...???

These...???

valvestems.gif
 
We know. We were just teasing him for misunderstanding your original post.
 
Not sure where you can get stock seals for $16 a set. All the online dealers wanted around $4.50 each for them and then you still have to pay shipping. I checked Z1 and they only had 7 in stock for $2.00 each but no backorder for the remaining one. I still had to pay for shipping on top of that.

Figured $19 a set delivered was the best price I would find. I have seen the Viton seals on ebay for around $30 delivered though. Just seems that the OEM types held up for the last 30 years who cares if the Vitons last for 60+.
 
I have used the aftermarket (K&L) ones from Z1 on a couple of heads with no issues... about half the price of OEM.
 
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