BENT VALVES?

Lets say I had bent valves, how difficult and costly would this problem be to resolve?

I am a novice mechanic, is this something that I should attempt to fix on my own or get a shop to look into it for me?

hypothetically, what happened?

I was adjusting the cam chain tension on my bike.
I started it with the electric start (what a dummy) the chain was not under tension and it sounded like a chainsaw was up against my valve cover.

Anyways after it started backfiring out of the carbs.

I spoke to some people and they said it maybe the timing is off due to skipped links, but with me I am assuming the worst.Bent valves.

If that is the cas you guys might find a parts bike up on the block pretty soon, unless some one can reassure me that I can give it a try.

I have heard, that the #1 needs to be at TDC and then you need to count back a certain # of teeth, but I have a lot of homework to do and I have never pried the valve cover off it before.

KOOL RYDER wrote:

I was adjusting the cam chain tension on my bike.
I started it with the electric start (what a dummy) the chain was not under tension and it sounded like a chainsaw was up against my valve cover.

Anyways after it started backfiring out of the carbs.

I spoke to some people and they said it maybe the timing is off due to skipped links, but with me I am assuming the worst.Bent valves.

If that is the cas you guys might find a parts bike up on the block pretty soon, unless some one can reassure me that I can give it a try.

I have heard, that the #1 needs to be at TDC and then you need to count back a certain # of teeth, but I have a lot of homework to do and I have never pried the valve cover off it before.

let it sit till ya have time and pull cover....if you have a manual, use that as a guide for your cam timing marks....which bike is this?

Which bike, the 650 or the 1000?

The 650.

I have added a new seat $ from Klasmo bikes, new clubmans, new amber covers, new meter cover new cables....it all adds up.

Plus new tire and new brake pads....Zen and the Art of Motorcycle maintenance.

All it needs now is a new petcok and a paint job and it will be fine, but..............

I think I bent the freakin valves.....

If that is the case does anyone know where I can get new valves for a stock 650?

KOOL RYDER wrote:

The 650.

I have added a new seat $ from Klasmo bikes, new clubmans, new amber covers, new meter cover new cables....it all adds up.

Plus new tire and new brake pads....Zen and the Art of Motorcycle maintenance.

All it needs now is a new petcok and a paint job and it will be fine, but..............

I think I bent the freakin valves.....

If that is the case does anyone know where I can get new valves for a stock 650?

i would at least pull cover, check timing and if its off ,make it right...turn it over by hand and listen....ya just might get lucky...gotta pull cover to pull head anyways....good luck...keith

KOOL RYDER wrote:

...started backfiring out of the carbs....

Did the backfiring happen when attempting to start the engine, or was the engine running when the backfiring was happening?

Is engine frozen? With ignition OFF, will engine freely turn over by hand without unusual noise and without encountering obvious interferrence? Be gentle and don't force anything. Piston contacting valve easily bends valve.

Am thinking toward checking valve clearances, a leakdown test, inspection for any visible damage under the valve cover, and examining correctness of cam-timing (camshafts orientation).

And I also concur with Keith's suggestions.

Good Luck!

well as ive always said theres no substitute for real hands on expriance! :ohmy: :huh: :dry: :blink: :blush: :S ouch !now you get to learn about the topside of your motor,hopefully ya just dinged a few valves without punching a hole in a piston.

We've been telling you to pull that cover for 8 months now. You still haven't? The suspense is killing me.

Hopefully for KOOL RYDER, this won't be a Kodak moment of OH SHIZA!

Dude, I feel your pain but there's only way to know for sure, open her up for visual confirmations at least...

We can all sit here and guesstimate the hypothetical worse case scenario for you but until you break into her there's just truly no way in hell anyone can say with 100% certainty what your facing...

Unfortunately, if you still need some help, you'll need to provide images along the way... Just bite the bullet (meaning posting images of your screw up) and cop up to it already, youfuckiedup, deal with it and fix the old girl! We've all been there...

Example, you think I enjoyed coping up to me busting a hole in my engine cases due to Dumbphuck ignorance...
Yeah right, Old Fart Plummen, Kawsukiman and Larry C still have fun at my expense.... But guess what, I learned and tucked my tail between my legs and fixed her up... Sucked, well hell ya it sucked but it is what it is, had to fix the situation you know! ....

And you don't need to be a master mechanic to remove the valve cover assuming you have some minor/proper tools such as a 3/8" or 1/2" drive and metric deep socket set...

Besides, how many times have you reviewed one of us going OH SHIZA, NO PHUCKING WAY, WHAT DID I DO THAT FOR!!!

or WTF, what a friggin dumbphuck I am....

Besides, what, you think your special so as not to join our group of OH SHIZA BOYS?

OMR

KOOL RYDER wrote:

Lets say I had bent valves, how difficult and costly would this problem be to resolve?

I am a novice mechanic, is this something that I should attempt to fix on my own or get a shop to look into it for me?

dont feel bad,ya oughta see the job omr did on his engine cases!:woohoo: