intake and exhaust valve replacement.

[1stTimeWinger]

I'm looking into purchasing an 86 aspencade 1200 . My question does anybody have feedback as to the What , When , Where , Why , and how come the valves need replacing, and cost and headache in taking on This project. For I'm a first timer when it comes to WINGS .. Any help is greatly appreciated. Thank you

[auctioneeral]

How do you know valve's need replacing. If timing belts break, it will cause valves bent. If you need valves, I brought a used head of ebay with the valves and used them valves.

[dingdong]

Yep! just about the only reason for bent valves is a broken timing belt. If so, there is a slight possibility there is piston damage also.

[littlebeaver]

Well , the head gasket has to be replaced, that could cost $50 or so for the set, each valve may cost around $17.00 or more, You are going to need a torque wrench to torque down the head bolts ect. So your looking at around $136 for all new valves, and $50 for head gaskets...$186.00 then factor in shipping and tax..$225.00 Now gasket sets may cost more like 80-100 dollars those come with valve cover rubber gaskets and O rings..Well you get the idea..Oh your going need to replace the valves oil stems, another $25.00 Maybe $300.00 total.. I'm not a good estimator... But that should cover it..

[Rob H]

Why do you want to replace the valves?

[Overdog]

Yep! just about the only reason for bent valves is a broken timing belt. If so, there is a slight possibility there is piston damage also.

.....or being stupid and dropping a screw into the intake port while the carbs are off. (Don't ask me how I know! )

[Overdog]

If you're looking at buying that bike and the owner is telling you he knows that the valves need replacing (and like the others said, probably a broken timing belt) the bike may very well have piston damage as well...I'd be VERY cautious about that bike!

[f1xrupr]

If someone worked on the engine, and installed the belts wrong, and bent the valves with the starter, it's probably ok to buy...but, if the belt broke while running, I would shy away. FYI...if it has bent valves, all of the valve springs must be released and check all valves for damage. Sometimes spring tention can hold a slightly bent valve closed, but, that valve will bend every time it opens and closes, and will probably break over time, and ruin the engine.

[Hoosier Jack]

Man, there are a lot of bikes out there that doesn't have this kind of problem to deal with. Maybe it's an exceptional deal and you like to do this kind of stuff.

[1stTimeWinger]

I want to Thank everyone for the information and replies. Was very helpful in making a decision as to whether to buy the bike or not. I decided noto to buy it cause it would be my luck and I would need a new motor instead of jus replacement of valves. Again thank you for your help .

[redial]

Keep looking, Firstimer, you will find a GW to your liking without too many hassles.