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  #1481  
Old 06-06-2011, 12:10 AM
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Default Re: what did you do to your motor bike today?

Hey Dan, have you thought of using a screw jack type of device similar to what the SBP shift kit uses? Visually speaking, it would blend in seamlessly into the motor mount/ bike.
As for the improvement it the engine's performance, I don't know for sure. What are the chances that the original spark plug cap had a poor connection to the spark plug wire? Or perhaps from the cap to the thread on spark plug nipple?
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  #1482  
Old 06-06-2011, 12:45 AM
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Default Re: what did you do to your motor bike today?

put the motor back together, but need a new chain breaker to put the engine chain back on.

also gonna look at some forks at the bike shop to see if they got any that will fit the chopper
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  #1483  
Old 06-06-2011, 01:54 AM
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Default Re: what did you do to your motor bike today?

Took the bike out for a little cruise today and raise a few smiles. Still having tuning woes with my Cnsv1, installed a mirror i bought today and front brakes off a donor bike that was given to me today.

Anyone notice an attitude problem with employees of bike stores when you tell them what you built jeez/ end rant...
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  #1484  
Old 06-06-2011, 02:46 AM
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Default Re: what did you do to your motor bike today?

Most bike shops have a total "I, Spandex-Man, am holier than thou" attitude around here. But of course, bicycle riders in the Boise area are all traditional purists.

(the few exceptions to the rule do exist, of course - though it's only a few)
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  #1485  
Old 06-06-2011, 07:17 AM
5-7HEAVEN 5-7HEAVEN is offline
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Default Re: what did you do to your motor bike today?

I swapped my 63t chainring sprocket for a 72t sprocket. I got to ride it today. The lower gear ratio wasn't really noticeable. The gears I normally use wind up a little faster. I'll notice the difference tomorrow, when I climb the steep ramp at work.

The chain jumped for the first time in months. The bike chainring is dished, and I might have installed it bass-ackwards. I noticed that the bike chain rides more inward, closer to the frame. There is also a clicking sound and feel, coming from the chainring area. The chain skips a beat sometimes, something that wasn't happening until I replaced the engine's drivetrain sprocket.

I rode slowly back home on the bikepath, which is what I do when my bike is ailing. I'll ride more slowly to work tomorrow, until the issues are rresolved.
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  #1486  
Old 06-06-2011, 07:34 AM
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by GearNut View Post
Hey Dan, have you thought of using a screw jack type of device similar to what the SBP shift kit uses? Visually speaking, it would blend in seamlessly into the motor mount/ bike.
As for the improvement it the engine's performance, I don't know for sure. What are the chances that the original spark plug cap had a poor connection to the spark plug wire? Or perhaps from the cap to the thread on spark plug nipple?
Not sure I am fully following GearNut. (but on 1st cup of coffee, lol) can you post a link or a pic to what yer thinking?

The plug thing is wild Buddy. The difference was night and late afternoon. (not quite day and night) I have swapped em out before with no real change. Is odd and dunno. The terminal cap was on good and tight with out needing a sledge to separate it.

You got me thinking, it would be real easy to just use a bigger rear pulley and run the shaft over to the rt side for some SBP shifter kit action.

Really is what I love about these things. Always some thing to learn or explore. Be really cool to have gears on HF. All that grunt with options.
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  #1487  
Old 06-06-2011, 09:12 AM
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by DuctTapedGoat View Post
Most bike shops have a total "I, Spandex-Man, am holier than thou" attitude around here. But of course, bicycle riders in the Boise area are all traditional purists.

(the few exceptions to the rule do exist, of course - though it's only a few)
Yeah thats true, I'm thankful my local bike shop isn't threatened in any way by the motorized bikes, he does stress that it would be a good idea to use better quality bikes for these projects rather than the el-cheap-O's, he just said he sure would hat eto see someone get hurt because of a failure from a broke axle or something like that.

Basically he just likes to sell me stuff reguardless of what I'm putting it on, in a small town like here we say "beggars cant be choosers", only so much business in a town of 20,000 people, I have been to his shop and when a customer comes in he may take them out to see my bike and then ask me to explain what all I've done to it....thats kinda fun, but I did have one fella that was a spandex-r that the owner was talking to about it and you could see the discuss on the guys face......the owner picked up on the guys attitude and back off the motorized bike stuff.......I just grinned and got my stuff together and cruised off with all eyes and grins toward me......
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  #1488  
Old 06-06-2011, 03:49 PM
5-7HEAVEN 5-7HEAVEN is offline
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Default Re: what did you do to your motor bike today?

I replaced the engine's 62t chainring sprocket to 72t. That lowered my total gear ratio from 32.46-24.82-21.96-19.09-16.23-14.32-12.41 and 10.5:1 in eighth gear...
to 37.08-28.37-25.09-21.82-18.55-16.36-14.1 and 12:1 in eighth gear.

The gears are closer in ratio now, with an extra gear between first and second gear. There is still a big gap between first and second, because first gear is the stump-pulling, up-the-ramp gear. Now, instead of using only five gears, I can shift down to sixth gear and still be pulling hard.

This is all theoretical, but I'll find out when I commute to work.

I took it for a test ride yesterday, but couldn't see a marked increase in performance yet. The first few gears might've been a bit snappier. I'm having issues with the drivetrain, due to this sprocket swap. I need to address these problems before doing a series of comprehensive testing.

The bicycle chain jumped off its 30t chainring sprocket, a mile into the test ride. I was doing 30 mph on flat ground. There have been some clunks and clanks coming from the bottom bracket area, more than likely due to the sprocket swap. I used new sections of 8mm(T8F) pocket bike chain to lengthen the engine drive chain. I MIGHT have reinstalled the 30t bicycle chainring sprocket bass-ackward. I don't remember which way the sprocket's "dish" was facing. Relying on memory, the bicycle chain is now a fraction of an inch inward. This is noticeable in 8th gear. I recall that the bicycle chain used to contact the outer edge of the front derailleur. Now it's maybe 1/8" inward, towards the front derailleur.

The sprockets will be removed & reinstalled today. Hopefully, that should clear all of the issues.
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  #1489  
Old 06-06-2011, 04:50 PM
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by 5-7HEAVEN View Post
I replaced the engine's 62t chainring sprocket to 72t. That lowered my total gear ratio from 32.46-24.82-21.96-19.09-16.23-14.32-12.41 and 10.5:1 in eighth gear...
to 37.08-28.37-25.09-21.82-18.55-16.36-14.1 and 12:1 in eighth gear.

The gears are closer in ratio now, with an extra gear between first and second gear. There is still a big gap between first and second, because first gear is the stump-pulling, up-the-ramp gear. Now, instead of using only five gears, I can shift down to sixth gear and still be pulling hard.

This is all theoretical, but I'll find out when I commute to work.

I took it for a test ride yesterday, but couldn't see a marked increase in performance yet. The first few gears might've been a bit snappier. I'm having issues with the drivetrain, due to this sprocket swap. I need to address these problems before doing a series of comprehensive testing.

The bicycle chain jumped off its 30t chainring sprocket, a mile into the test ride. I was doing 30 mph on flat ground. There have been some clunks and clanks coming from the bottom bracket area, more than likely due to the sprocket swap. I used new sections of 8mm(T8F) pocket bike chain to lengthen the engine drive chain. I MIGHT have reinstalled the 30t bicycle chainring sprocket bass-ackward. I don't remember which way the sprocket's "dish" was facing. Relying on memory, the bicycle chain is now a fraction of an inch inward. This is noticeable in 8th gear. I recall that the bicycle chain used to contact the outer edge of the front derailleur. Now it's maybe 1/8" inward, towards the front derailleur.

The sprockets will be removed & reinstalled today. Hopefully, that should clear all of the issues.
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Honey, it's just a bicycle. and i REALLY need it to excercise, and to ride it to work.(hehe)
Hope that fixes your issue, Man I really wont a shifting bike.....and I'm gonna have one before long, I've got 2 Sturmey Archer 3sp Hubs and one SunTour 3sp hub.......and I'm thinking this bike in the pic below will make a nice shifter set up since I dont think I can mount a sprocket on that wheel since the 3 spd hub is so much larger than the standard coater hub.

Peace
Attached Images
File Type: jpg 3speed bikes6.jpg (112.5 KB, 30 views)
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  #1490  
Old 06-06-2011, 04:50 PM
chrisme chrisme is offline
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Default Re: what did you do to your motor bike today?

I put some gas in, and rode about 60 miles round trip. Then rode another 30 miles to a friend's house and back. That's about it. Runs great, no problems
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