Topic: Valves way too tight--anything I should be concerned about?

[jdigga]

I love this forum!  Can't thank you guys enough for all your input.  I'm going to try the extra clearances to tide me over until I ultimately decide what to do with this thing.

[dusterdude]

if you are concerned about carbon build up on the valves,try a little water injection,that should clean them up right nice

[upperlake04]

If you're lucky, they will clean off OK, I've seen that, too, un bikes that we're flogged much.

sorry for my newbiness Hondaman , but are you recommending to baby it or thrash it?

if you are concerned about carbon build up on the valves,try a little water injection,that should clean them up right nice

Tell me more DD - Bike parked for the winter now, but ran 1300 miles in the fall with 2 oversized slows which carboned the valves enough to cause irregular compression test readings. Tapping the valve tips through the inspection holes changed the readings favourably, but not to the numbers taken immediately after the top end rebuild.  I'm quessing there is a difference in the methods of removal between carbon  and the hard tan crud buildup    

[dusterdude]

well on cars or anything with a downdraft carb,you can plumb a water supply into a vacuum nipple on the carb or manifold.on ours with sidedraft carbs,you might try to get a spray bottle and spray water into the individual carbs with the engine running at a high idle.spray a little bit into each carb and see if that helps.

[upperlake04]

wow Duster   never heard of that before,  but I just did a quick google search and see that the method is tried and true back to WW2 - can increase HP, decrease detonation, lower engine temperatures, and increase fuel mileage, as well as cleaning carbon deposits.  Lots of aftermarket add-on gadgets available for cars.  I have some research to do. Thanks man

[HondaMan]

If you're lucky, they will clean off OK, I've seen that, too, un bikes that we're flogged much.

sorry for my newbiness Hondaman , but are you recommending to baby it or thrash it?

if you are concerned about carbon build up on the valves,try a little water injection,that should clean them up right nice

Tell me more DD - Bike parked for the winter now, but ran 1300 miles in the fall with 2 oversized slows which carboned the valves enough to cause irregular compression test readings. Tapping the valve tips through the inspection holes changed the readings favourably, but not to the numbers taken immediately after the top end rebuild.  I'm quessing there is a difference in the methods of removal between carbon  and the hard tan crud buildup    

Well, if I could type when I'm sleepy, I'd recommend riding it normally....   
After it gets good and warm (like 30 minutes) thrash it a bit to blow it out. Don't hit it too hard when it's cold, as this won't have an even effect on it, rather it might "chunk off" in spots and the whole process will not work out. You'll be stuck then with having to pull the head.

[upperlake04]

Thanks again HM    this has been another valuable thread.

  I'd like to mention that, to this terminal newb, your posts are a godsend and I consider them a privilege to read.  I expect there are many of us who have come to this hobby late and will never gain the depth of experience or breadth of knowledge that you and a few others have.  With internet communication,  often we don't get feedback and don't really know how our statements, opinions and jokes are recieved as we would in our face-to-face interactions (unless they piss somebody off). That you continue to freely share your knowedge is a statement of character. Had to tell you that.[thumbs up smiley]

[HondaMan]

Thanks again HM    this has been another valuable thread.

  I'd like to mention that, to this terminal newb, your posts are a godsend and I consider them a privilege to read.  I expect there are many of us who have come to this hobby late and will never gain the depth of experience or breadth of knowledge that you and a few others have.  With internet communication,  often we don't get feedback and don't really know how our statements, opinions and jokes are recieved as we would in our face-to-face interactions (unless they piss somebody off). That you continue to freely share your knowedge is a statement of character. Had to tell you that.[thumbs up smiley]

Gosh... aw, gee...   

Just glad to spread it around, really. These bikes are more fun than most "modern" riders think, and it's great to see everyone beginning to understand them again. And, so many of them were built, I think the parts supply will be with us for quite a while, too boot! Hard to beat. Personally, I like them for their longevity most of all.