85 gs550 compression leak ?

[motogpaman2006]

85 gs550 im getting a compression leak out of 2 cylinders out of the top of the head out of the spark plug threads what could I do to fix it ?????

[JEEPRUSTY]

Helicoil..............

[motogpaman2006]

Is there a spicific Helicoil kit?

[SqDancerLynn1]

Does it thread in OK ? Change the plug and washer !

[motogpaman2006]

Some of them go in perfict and some are rilly hard to go in but not to bad not to where u have to force it

[motogpaman2006]

What plugs dus the bike use exactly I got them with the bike and it wasn't running at the time

[mike_of_bbg]

NGK D9EA according to this:

http://members.dslextreme.com/users/storagecliff1/images/General_Suzuki_Specs.html

[JEEPRUSTY]

how do you know its leaking from the plug holes?
are they visible damaged?

You can get an appropriat tap and chase out the holes. I think you need a special tap not sure though.

[motogpaman2006]

how do you know its leaking from the plug holes?
are they visible damaged?

You can get an appropriat tap and chase out the holes. I think you need a special tap not sure though.

When it was cold I took the plug wires off and sprayed carb clever around them and cranked it on the up stoke u could hear and see bubbling

[motogpaman2006]

NGK D9EA according to this:

http://members.dslextreme.com/users/...uki_Specs.html

Ok got the right plugs then

[motogpaman2006]

What is the 85 Gs550 running temperature I've searched the forum no luck

[JEEPRUSTY]

Gosh yah know that isnt even int he manual.
Its an air cooled engine and if it is jetted properly it will run in a range that will not destroy the engine.

Do not let is sit idling for more than a few minutes or you are asking for heartache.

Do you think it is runing too hot? Check your plugs and tell us the colour and so on.

And do not buy a manual. A little piece of me dies when folks buy manuals that are freely available.