1 and 5 cyl down

[arse21]

Hey there, folks
Over the last year I have been chasing down burning smoke/popping right side.
http://www.valkyrieforum.com/bbs/index.php/topic,123293.0.html
http://www.valkyrieforum.com/bbs/index.php/topic,113245.0.html
Basics I have done:
Desmogged - have double and triple checked hoses, clamps, and plugs.
Intake o rings and exhaust o rings
Retuned pilot jet screws out 2.5 turns on all carbs
Attempted to stake the valves to knock carbon loose

Bike will run the same even when I pull plug wires for #1 and #5 cylinders. The bike was in a crash on this side before the previous owner. I don't know how severe but the highway bars are shorn quite a bit. Don't know extent of sitting / work on the bike.

I pulled the head off. Here's what I see. Cross hatching doesn't look bad. Haven't looked down the #1 cyl due to its position. Valves in 1 and 5 look pretty gunked.



Last year compression test - 1 and 5 did increase compression with added oil through spark plug hole.
What else can I do before considering cracking the block in half to get at pistons / rings?

Also, could there be much more damage if I ride her without these cylinders?

[arse21]

[h13man]

Well I have had spark plug failure right @ 10,000 mi. 2 x. on different cylinders. Honda OEM manual says every 8,000 mi. change. Plugwire, maybe but.....

[John Schmidt]

I would check the plug wire resistors in those cylinders. Easy to do, just pull them out by unscrewing the inside of the plug cap...the innards should fall out. They're easy to check...if open you'll have no continuity through the resistor. If that's good, then go to the coil for each one and check where the plug wire enters, the cap may have worked loose. The #1 coil is on the front coil on the left under the tank...may have to lift the tank a bit to get at it. The #5 is the last one under the tank near the fuel control. The last thing I would have done is pulled the head.

[Bagger John - #3785]

How's the compression on #1 and #5?

[arse21]

How's the compression on #1 and #5?

Low on 1 and 5, it came up with oil down spark hole. I don't remember the exact # as I checked in the fall.

I saw a post about someone burning blue and low compression who did a mystery oil soak, oil change, and Auto RX treatment but didn't post again on results.

I'd really rather not have to pull pistons. Guess I'm looking for any other last ditch efforts!

[sandy]

Could be stuck rings. Check You Tube for this problem. There are multiple vids on this problem.

[Bagger John - #3785]

I'm wondering if it's bent valves from the wreck. Did the cam cover and pulleys get damaged when this happened?

[The emperor has no clothes]

I'm wondering if it's bent valves from the wreck. Did the cam cover and pulleys get damaged when this happened?

I always thought that when a squirt of oil improved the compression values, it was for sure not valve related.

[arse21]

I'm wondering if it's bent valves from the wreck. Did the cam cover and pulleys get damaged when this happened?

I always thought that when a squirt of oil improved the compression values, it was for sure not valve related.

That's about where I am at currently, hence taking the head to see how things looked. I don't think it's bent valves as I have had no knocking pinging awkward performance, it just feels like an 100cc 4 cyl

[Rio Wil]

Wonder if you have a air cut off valve on the side of the carbs leaking....item 24 in the carb parts list.

[arse21]

Wonder if you have a air cut off valve on the side of the carbs leaking....item 24 in the carb parts list.

I desmogged her last fall in hunting down leaks. Though I haven't checked that piece yet...will take a look tomorrow!

[arse21]

I would check the plug wire resistors in those cylinders. Easy to do, just pull them out by unscrewing the inside of the plug cap...the innards should fall out. They're easy to check...if open you'll have no continuity through the resistor. If that's good, then go to the coil for each one and check where the plug wire enters, the cap may have worked loose. The #1 coil is on the front coil on the left under the tank...may have to lift the tank a bit to get at it. The #5 is the last one under the tank near the fuel control. The last thing I would have done is pulled the head.

I did check the resistors/coils last summer and they were good. Put new spark plugs in and same problem continues. After desmog, I sprayed starter fluid around tubes and blocks to see if it was still vacuum, nothing there. I staked the valves a few times after compression test to see if I could loosen any valve carbon, no change. Intake and exhaust orings replaced. Timing belts looked in good position before.

I feel like I am at the next last thing, removing the head. Having a goldwing mech look at the head / valves to see his thoughts this week. I am trying to be simple solution focused and nothing is working, hence the space of removing the head.

If valves / head are fine, I will try some of the stuck rings videos from youtube...but again this bike was in an unknown crash prior to previous owner having it. I don't know what repair was done, how long it sat, all I have is the damage on the highway bars to see it was dropped hard on the right side where I am having problems.