Search found 299 matches

by juntjoo
Tue Mar 12, 2019 1:46 pm
Forum: Technical Discussion
Topic: How does the engine perform between rich vs lean?
Replies: 4
Views: 482

Re: How does the engine perform between rich vs lean?

K&N's usually shift mixture towards lean but your plugs look really all right. With air filters like that placed on positions shown in your pictures pressure conditions at your carbs might become strange, especially when you operate the throttle. Things may even depend on the positions of your ...
by juntjoo
Thu Mar 07, 2019 9:55 pm
Forum: Technical Discussion
Topic: Need to fix a spark plug hole thread. Need correct specs
Replies: 2
Views: 330

Re: Need to fix a spark plug hole thread. Need correct specs

kerryb wrote:Spark plug size for cb650 is 12mm.


Thanks!
by juntjoo
Thu Mar 07, 2019 2:28 pm
Forum: Technical Discussion
Topic: Need to fix a spark plug hole thread. Need correct specs
Replies: 2
Views: 330

Need to fix a spark plug hole thread. Need correct specs

I don't know if there is a standard for motorcycles or something but I've gathered they're smaller than for car/truck plugs so I'm just trying to find the right general thread repair kit. I'm going for a heli-coil kit cuz their particular tool allows for lateral clearance for deep narrow circumstanc...
by juntjoo
Thu Mar 07, 2019 2:17 pm
Forum: Technical Discussion
Topic: How does the engine perform between rich vs lean?
Replies: 4
Views: 482

Re: How does the engine perform between rich vs lean?

What I notice most besides high rpms struggles, if it's not the same problem is this cooler(SWFL temps) starting stumbling /stalling upon rapid throttle action. Check out my plugs though 20190307_005431.jpg I thought they'd be darker but apparently I'm running lean. I checked these right after a col...
by juntjoo
Wed Mar 06, 2019 6:06 pm
Forum: Technical Discussion
Topic: How does the engine perform between rich vs lean?
Replies: 4
Views: 482

How does the engine perform between rich vs lean?

I have two situations where it struggles a bit, 1, before engine warms up, and 2, in particularly warmer, 70+ farenheit tempuratures, as I've noticed when it's colder I barely notice any performance issues... which come down to hesitations with higher rpms or rapid throttle action. If I turn the thr...
by juntjoo
Wed Jan 09, 2019 5:25 am
Forum: Technical Discussion
Topic: When to replace valve cover and adjustment cover gaskets
Replies: 1
Views: 881

When to replace valve cover and adjustment cover gaskets

I've got leaks from mine which I partially remedied torqing down on them a bit beyond spec(probably not good) which helped a bit but not entirely. The gaskets aren't old at all but I've removed the covers a few times for hiding valves and other work so I'm wondering how quickly, or after how many re...
by juntjoo
Wed Jan 09, 2019 5:17 am
Forum: Technical Discussion
Topic: Should I go up .001" on valve clearances as I've read in a couple threads here?
Replies: 2
Views: 864

Re: Should I go up .001" on valve clearances as I've read in a couple threads here?

There is no need or reason to deviate from book specs unless you really know what you do. Special fuel or special cams might be a reason for things like that. If somebody should run into valve overheat problems with book specs, this is probably due to too lean. And this is most probably due to pod ...
by juntjoo
Wed Jan 02, 2019 4:09 pm
Forum: Technical Discussion
Topic: How to fix a bent handle bar?
Replies: 1
Views: 524

How to fix a bent handle bar?

https://imgur.com/a/Jy88Ago I just noticed this recently and I'm guessing it was the result of one of the times I dropped my bike on its left side(obviously). I think it was one night just after parking it in my garage I was tired it just fell out of my control. I think I leaned too far to the right...
by juntjoo
Tue Jan 01, 2019 8:45 pm
Forum: Technical Discussion
Topic: Should I go up .001" on valve clearances as I've read in a couple threads here?
Replies: 2
Views: 864

Should I go up .001" on valve clearances as I've read in a couple threads here?

What's the consensus on this? The info I read by some on sohc.net was a bit too technical for me so I didn't quite understand it but the claim is that it increases the life of your valves, particularly the exhaust ones, that otherwise within a few k miles your valves could fail I think I read. Since...
by juntjoo
Tue Dec 11, 2018 11:17 pm
Forum: Technical Discussion
Topic: Can't get voltage through relay for heated grips. Help?
Replies: 3
Views: 845

Re: Can't get voltage through relay for heated grips. Help?

JJ, the CB650 has a well known crap charging system so why the hell would would you want to complicate things any further? Buy thicker gloves! It's just for a few weeks out of the year. What can I say, I like my gadgets. And my skinny boney fingers are the coldest part of me while riding. Anyway, I...
by juntjoo
Tue Dec 11, 2018 1:43 pm
Forum: Technical Discussion
Topic: Can't get voltage through relay for heated grips. Help?
Replies: 3
Views: 845

Can't get voltage through relay for heated grips. Help?

No voltage to relay https://imgur.com/a/RgYZHgN Anyone have any idea why I can get resistance across the relay testing with the ignition but not voltage? Confirmed grips work connected directly. Confirmed voltage to the point(brown wore to rear lights) with ignition switch closed So relay works but ...
by juntjoo
Fri Dec 07, 2018 3:23 am
Forum: Technical Discussion
Topic: Carbs leaking from the rear after removing air box
Replies: 1
Views: 654

Re: Carbs leaking from the rear after removing air box

Okay, I removed the filters, tested it out for about a minute (trying to go to bed) and with a little cold it didn't die and didn't appear to leak from the rear so I'm guessing the filters were too restrictive. Better made for coffee :p. And I don't k ow how air works to have prevented them from lea...
by juntjoo
Thu Dec 06, 2018 11:21 pm
Forum: Technical Discussion
Topic: Carbs leaking from the rear after removing air box
Replies: 1
Views: 654

Carbs leaking from the rear after removing air box

https://youtu.be/No1nrybJSSM Just removed the air box and did a preliminary pod filter test with coffee filters with rubber bands as I haven't even ordered pod filters yet. I know coffee filters are not the same but should this be happening? I have simply left the vent tubes from the carbs and the c...
by juntjoo
Thu Dec 06, 2018 2:00 pm
Forum: Technical Discussion
Topic: Air filter-1982 nighthawk 650. Air box or no air box
Replies: 24
Views: 7016

Re: Air filter-1982 nighthawk 650. Air box or no air box

Did you do anything to support the carbs? They used to use the air box to keep them from hanging down stressing the boots to the engine.
by juntjoo
Thu Dec 06, 2018 1:41 pm
Forum: Technical Discussion
Topic: Air filter-1982 nighthawk 650. Air box or no air box
Replies: 24
Views: 7016

Re: Air filter-1982 nighthawk 650. Air box or no air box

Yes i have ran 2 81 650/s with pods. One one the road over many miles over 10 years with no problems untill the oil pump died. The other at the drag strip for 12 years and it was still good when I stopped racing. No i didnt just show up i placed in points 2 years and had to file taxes one time so m...

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