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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #1431  
Old 06-02-2011, 12:47 AM
5-7HEAVEN 5-7HEAVEN is offline
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Default Re: what did you do to your motor bike today?

It rained these past two days; I commuted more carefully, though.

The tank's rear rack location prevented the "racoon stripe" down my back. The engine and pipe location shielded most of the water spray onto me.

Raining or not, it was still the best part of my work day.

I can't wait for the weekend, so I'll have time to swap my 63t chainring sprocket to 72t sprocket.
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  #1432  
Old 06-02-2011, 02:25 AM
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DuctTapedGoat DuctTapedGoat is offline
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Default Re: what did you do to your motor bike today?

@5-7HEAVEN : You're lucky - I had to get a front fender, road sand would end up all over my face and front of my jacket to the point where after 4-5 miles I couldn't see through my glasses.
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  #1433  
Old 06-02-2011, 12:36 PM
5-7HEAVEN 5-7HEAVEN is offline
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Default Re: what did you do to your motor bike today?

LOL, actually water spray hits my glasses too. Upon reaching work, I simply wash my face and clean my glasses.
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  #1434  
Old 06-02-2011, 01:54 PM
chrisme chrisme is offline
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Default Re: what did you do to your motor bike today?

Put about 40 milen on the new engine. Runs great!

Put the CNS on... It doesn't even run well enough to drive on a straight away....
This will take a little tinkering. Back to NT for now.
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  #1435  
Old 06-02-2011, 03:59 PM
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mapbike mapbike is offline
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Default Re: what did you do to your motor bike today?

Well, haven't done anything to a bike today yet.............But I did get soem of the parts & pieces I had ordered in today, I got my new RT Carb. from Duane @ Thats Dax, Thanks Duane, looks like a good carb, got the extra 2 jets with it si that will come in handy in the tuning department, I'm assuming it has the #68 jet installed already because the extras are a #70 & #80.

I also got my new China Girl lower end, and the 32T sprocket I had ordered for a 24" project I have in mind.

still waiting on a few more parts to come in and I ordered some of the KBK10X14X13 Heavy Duty wrist pin needle Bearings today, these will go in all my engines in the near future, I also ordered some double lipped 17X28X5mm Crankshaft Seals, should have these bearings and seals by Monday and maybe the rest of my stuff will be here by then also.

Gonna pull the SBP Expansion Chamber Exhaust off the Kulana Moondog bike since it is waiting on a new upper needle bearing and put that pipe on the Karaoke and see if I can see a noticable difference over the exhaust thats on it now, I had an expansion chanmber on it but I think it was just way to big and the lead off pipe was just way to long for it to be effective so now I will know for sure if the SBP pipe makes an improvement over the exhaust I had made for it, I will make no other changes accept the pipe and see how it runs and pulls on the hills for a comparison.

well thats it for now, I guess I better get out there and get busy, I'll post result later on this evening if at all possible.

Peace
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  #1436  
Old 06-02-2011, 06:33 PM
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mapbike mapbike is offline
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Default Re: what did you do to your motor bike today?

Well got the expansion pipe put on and went for a 7 mile trip on the same roads I always ride on around here, and I have to say that the bike does pull the hills a tad bit better and it may accelerate just a tad bit better as well, top speed remains the same not a mph more not a mph less, I hit 41.6 mph and it will hold steady at 38-39mph on the flat & will maintain 26-30MPH on the hills around here and is much quiter also.

So my conclusion is that the SBP Expansion Chamber Exhaust does a great all around job of increasing the torque and flowing free enough to allow a good top speed and it does it pretty darn quite too.

Now, this is a bone stock engine internally, nothing polished, nothing deburred, nothing tweaked other than the carb jet has been reduced by soldering up and redrilling with a #72 bit.

Bike has a 36T sprocket which I made from a small kids bike by drilling all the holes in it for the rag joint coupler.

When I get my new upper rod-wristpin bearings and seals in and I get a few more miles on this engine I will do some minor port work make better gasket for jug to engine case and take a few thousands off the head and I may give it a wider squish band that more closely matches the bore to its outer edge, not sure this will help anything but I'm sure it cant hurt, then this engine will get the new RT carb. and nice air filter I just got in from Duane at Thats Dax......

I may need to shorten the lead pipe from engine to expansion chamber, not sure yet, it is running pretty good like it is so I will likely leave it alone until I get all the other stuff done to this engine and then I may tweak it a bit.

it's just kinda rigged up on it right now as you can see in the pic but that was a quick get-ur done deal to see how it would perform.......

I'm Happy with it......

Peace
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File Type: jpg 06022011(001).jpg (104.9 KB, 36 views)
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Last edited by mapbike; 06-02-2011 at 06:37 PM.
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  #1437  
Old 06-02-2011, 09:20 PM
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DuctTapedGoat DuctTapedGoat is offline
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Default Re: what did you do to your motor bike today?

Registered my bikes S/N with the state - very valid two dollars to spend.
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  #1438  
Old 06-02-2011, 09:55 PM
Scootmeister Scootmeister is offline
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Default Re: what did you do to your motor bike today?

To prove that I have too much time on my hands, I tore Scooteriste Rouge (Red Rider) down and painted everything-------what else, RED. Everything that is but the cantilever frame which needs a fork stop welded in place first thing in the am (I need the sunlight on the east side of the garage so I can see to weld!!!! I also swapped out the original POS tube on the rear of the Whiz and replaced with a Bontrager thornproof tube. At 30 psi she's hard as a no-flat. Tomorrow will help my bud uncrate his new ride from California Scooter Company.
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  #1439  
Old 06-03-2011, 12:37 PM
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RebelHellbilly RebelHellbilly is offline
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Default Re: what did you do to your motor bike today?

riding..trying to stay in 1 piece in this city lol
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  #1440  
Old 06-03-2011, 02:09 PM
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Mike B Mike B is offline
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Default Re: what did you do to your motor bike today?

Raised the E clip on the needle a notch and it runs better, less 4 stroking. Noticed a squeak fron the head tube on the OP and sure enough, no grease on the lower bearing. There was grease on the upper bearing, but the bottom was dry. Fixed that and the steering is much better.
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