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1  General Category / General Motorcycle Discussion / Re: getting back on a cb-1. on: July 02, 2010, 10:02:58 AM
i'm thinking about getting a 690smc, street triple, or monster 1100. will probably have to sell some more bikes to afford whatever i decide on.  Shocked
2  General Category / General Motorcycle Discussion / Re: getting back on a cb-1. on: June 29, 2010, 08:23:35 AM
aaaand it is sold. after getting the bike running pretty well and riding around for a bit, i realized that memory is sweeter than reality and the bike just wasn't how i remembered it. oh well.
3  General Category / General Motorcycle Discussion / Re: getting back on a cb-1. on: March 22, 2010, 10:06:36 PM
sychn'd the carbs and it's running better, but still not perfect. the part-throttle hesistation/surge is still there, which from what i've read could either be float height or needle height. the WOT hesitation is also still there and it's got me somewhat stumped. the bike runs fine both before and after the 10-12k rpm range.
4  General Category / Tech Corner / Re: Need proper float height settings on: March 22, 2010, 09:51:00 PM
thanks for posting the float heights, i've been messing around with my carbs and hadn't found what the stock float height was supposed to be. i've only ever replaced the gaskets when they're torn/crumbling/varnished beyond usability. the float height is supposed to be non-adjustable, but as you've figured out the tang can be bent to adjust the height. that's how nt650 owners do it anyway.

i've always used a vernier caliper to measure float heights.
5  General Category / General Motorcycle Discussion / Re: Help Battery keeps going dead on: March 18, 2010, 05:19:36 PM
if it's the regulator/rectifier, there should be 5 wires - 3 yellow, 1 green and 1 red. when you say right side, are you facing the bike or sitting on it?
6  General Category / General Motorcycle Discussion / Re: Help Battery keeps going dead on: March 17, 2010, 09:12:43 AM
i can't believe i forgot to mention this in my previous post. the honda voltage regulator from the late 80s and early 90s is a piece of garbage. i would look in to finding a replacement for it... the regulator from the late '90s and '00s is much improved, or you can splice in a '00s suzuki gsxr regulator like i did. the suzuki part can be found pretty cheap via ebay and the conversion is not very difficult.
7  General Category / General Motorcycle Discussion / Re: getting back on a cb-1. on: March 17, 2010, 09:09:51 AM
well last night i finally managed to get the bike out and run it through the entire rev range. it's stuttering pretty bad at part throttle between 6-8k, and again at WOT between 10-12k rpm. any suggestions?

the bike has a kerker exhaust, stock airbox with the snorkels missing, 35 pilot jets and 108 main jets. the mixture screws (i think that's what they're called) are at 2.5 turns out. the carbs have not been synched.
8  General Category / General Motorcycle Discussion / Re: Help Battery keeps going dead on: March 14, 2010, 05:14:05 PM
i have found this guide to be helpful in the past: http://www.sportbikez.net/forum/f8/how-to-troubleshoot-a-charging-system-11591/
9  Classifieds / For Sale / Re: Kerker Exhaust on: March 12, 2010, 05:58:32 PM
How much are you asking for the canister? Also, did you simply put a yosh can on the kerker tubing, or does yosh actually make an exhaust for the cb-1?
10  General Category / Photo Gallery / Re: Our CB-1 Race bike on: March 11, 2010, 08:54:32 AM
grattan is a 6 hour drive from where i am!

a friend of mine was thinking about the team chicago school. i couldn't justify the long drive just to potentially be rained/snowed out.
11  General Category / Photo Gallery / Re: Our CB-1 Race bike on: March 10, 2010, 08:35:13 PM
were any of you guys planning on going to grattan this year? if there's some more cb-1 folks going up there i might be persuaded to make the long haul from IL and bring my -1. are you guys in wera, stt, nesba, or something else?
12  General Category / General Motorcycle Discussion / Re: Trading Up on: March 08, 2010, 10:47:10 AM
i've got a '98 vfr and absolutely love it. the sound is intoxicating.
13  General Category / General Motorcycle Discussion / Re: getting back on a cb-1. on: March 07, 2010, 05:19:45 PM
i got the bike running today. i've been slowly working on the carbs all winter long and finally put them back together and back on the bike. there wasn't much wrong with them really, i think the PO must have had them cleaned while trying to chase down what ended up being a badly clogged fuel filter and a dead voltage regulator.

i replaced the fuel filter, installed a spare voltage regulator from my gsxr, put new gas in it, and it fired right up.
14  General Category / Tech Corner / baseline carb jetting? on: January 11, 2010, 07:53:22 AM
I am in the process of rebuilding the carbs on my -1, and have been wondering what jets to use. The bike has a kerker exhaust and I plan to replace the cut the paper filter out and replace it with less restrictive foam as another poster here has done. The PO had the main jets changed from the stock 105 to 108s to match the exhaust. I've verified this as I have the carbs taken apart. This seems to be inline with what most folks recommend, however the pilot jets are still the stock size 35. Should I switch to 38s? Shim the needles a bit? Do I want to keep the pilot screws at the stock 2.5 turns out, or will I need to change that?

On a somewhat related note, does the dynojet stage 1 kit include needles with adjustable clip height? Is the shape of the needle different from stock?
15  General Category / Tech Corner / Re: Built in Velocity Stacks on: January 03, 2010, 10:13:51 AM
what do you plan to do for the carbs with those pod filters? i had a hawk gt with pod filters and bought a dynojet stage 3 kit to tune them. there's only a stage 1 kit for the cb400, and i'm really curious about the differences between the various stages. i know that the mains would definitely need to be changed, but what about the needles and pilot jets?

i've thought about putting pods on a cb-1 just because it seems like nobody does it and they really do sound neat at WOT. i'm just nervous about getting the tune right.
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