Is this ticking sound normal for 1992 Nighthawk 750?

[maverickfhs]

So I am going through Nighthawk 750, after replacing fluids and cleaning and checking all bolts.

I fired her up and can hear a tick tick kind of noise, is it cam chain tensioner? Or is this a valve making a noise? Or engine is shot?

Can you guys please hear it and see if it's CCT or a normal noise of valves and I am just being paranoid?

https://clyp.it/kqcavyjn

Also, as far as I can tell valve are hydraulic and don't need any adjustments.

Thanks for the help guys

[Re-run]

Was the bike in storage or anything like that? Your valves are hydraulic, so no adjustment would normally be needed. It does sound like a sticky lifter though. Doesn't sound like it should be a problem, from what I can tell.

What fluids did you change? Specifically, what oil and weight? Has it been a while since it was last changed?

You may want to pull the valve cover off and just have a look. I think you can reuse that gasket as long as it is not torn. But it sounds like a sticky lifter. However, wiggles things around look for anything odd.

[maverickfhs]

Thanks so much Rerun :)

Answers in the order:

1- I am not sure if bike was in storage or no, but did I ride it home about 70 miles and then started working on it~ 1-2 weeks ago?

2-I drained ONLY oil and didn't touch the filter, I used Shell Rotella 15W-40( please no oil debate, except advice). I changed the oil on Tue and fired her yesterday.

3-Replaced Brake fluid, adjusted slack on rear brake and other things on the bike.

Once I rev the bike, noise seems to fade(reduce or maybe go faster and then comes back when idling.

If you notice at the end of audio clip, I moved my phone close to the engine from throttle side and it can clearly be heard.

Thanks for the help.

[TOOLS1]

Does sound like a sticky lifter. Two things I would try on this. First add about a cup of Marvel Mystery Oil to the oil, and another cup to the gas tank, and ride it. Second I would pour a can of Seamfoam into the oil, ride it about 10 miles and then change the oil. However noises like this are common on these engines, so I would not be too worried about it.
TOOLS

[maverickfhs]

As always, thanks Tools :)

I'll be wasting this fresh oil, which has only 1 mile on it.

Should I do with some old engine oil? Like, I have another bike for which I am planning to drain engine oil, I can put that in a clean container and then pour it after using a cloth to filter it?

Or should I strictly do this on existing new engine oil? After adding Marvel mystery, how many miles should I ride, again 10? Should I add a whole can of seafoam into engine oil?

Thanks.

[Re-run]

The MMO or seafoam is a common cure for sticky lifters. They break up old sludge on things so they operate smoothly. However, rotella(which is usually recommended, I use the t6 synth, myself) is a diesel oil. Diesel engines are dirty things and so these oils have strong additive packages to help keep things clean. It is possible that if you ride it for a while, the oil itself will clean things up enough to stop the tick.

[maverickfhs]

Thank you. Yeah, I am not sure what oil PO had used. But it was definitely not Rotella, as far as he told me.

I have no problem adding seafoam and MMO, but should I wait till next oil change or use that old bike oil and kind of recycle it? :)

[maverickfhs]

How about adding some ATF to crankcase? Bad idea?

[TOOLS1]

ATF does just about the same thing as the MMO. You could add the MMO now and ride it until it is time to change the oil. Then if it is still ticking run the Seafoam right before changing the oil.
TOOLS

[maverickfhs]

Thanks again, I don't have MMO oil, but do have ATF laying around.

Can I use it?

[Re-run]

I won't, except right before a change, but that's me. I probably wouldn't use it in oil anyways, not given most todays formulas. I'd use the MMO if you want to ride it some. Then, if needed, seafoam right at the end. Besides, seafoam makes a great fuel stabilizer.

[maverickfhs]

Thanks, I am going to hold on to it for. now I'll put 1000 or so miles on new oil.

Then will add MMO or ATF and Seafoam in the motor and fuel tank, will ride 30-50 miles and will replace filter and oil both together.

Would that be a right approach or I am an idiot?

[maverickfhs]

BTW, is MMO a good fuel stabilizer?

Also, I am looking at Seafoam motor treatment by gallon, because it's a lot cheaper and apparently has no expiration in terms of shelf life.

Was wondering if anyone has tried some other cheap alternative like:

http://hildstrom.com/projects/seafoam/

http://www.dieselbombers.com/alterna...w-seafoam.html

https://bobistheoilguy.com/forums/ub...pics/2471695/1

I would be curious to know if you guys have any other suggestions for 'cheap' fuel stabilizer or anything good for Carbed bikes?

BTW, I can get a gallon of Seafoam for ~$35 and that's the cheapest I am able to find so far.

Please feel free to provide any input and suggestions, thanks everyone.

[TOOLS1]

Just put the MMO in and ride it. MMO is not a fuel stabilizer that I know of, but it will lubricate the intake valves which are the ones that usually get sticky. As for fuel stabilizer, I use Seafoam for that.
TOOLS