Author Topic: Basket case 750 K2. All finished with short audio clip just for laughs.  (Read 6941 times)

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Offline cougar

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Re: Basket case 750 K2. All finished with short audio clip just for laughs.
« Reply #25 on: September 05, 2013, 07:28:18 AM »
Nic ; Thanks for the link to you current build. Super Sweet bike you've built ! Don't feel bad about the purple, I like purple as well ! And I can see the metalflake in the paint ! I realize everyone has their own feeling about how their bike should look, that being said, you've done yourself and the bike Proud !!! I ntoiced you've not said if this motor is stock or if you've done anything inside (performance wise) . If you've done any performance mods, will the step down from the 2" down to your mufflers restrict the exhaust flow any?    ...cougar...
I'm not prejudice, I'll weld anything that pays! Knowledge that is shared is Never Lost!!   Right is right, wrong is wrong! The truth is the truth and a lie is a lie! DEAL WITH IT ACCORDINGLY !!!   I HATE "DIAL-UP"

Nic

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Re: Basket case 750 K2. All finished with short audio clip just for laughs.
« Reply #26 on: September 05, 2013, 03:06:46 PM »
Nic ; Thanks for the link to you current build. Super Sweet bike you've built ! Don't feel bad about the purple, I like purple as well ! And I can see the metalflake in the paint ! I realize everyone has their own feeling about how their bike should look, that being said, you've done yourself and the bike Proud !!! I noticed you've not said if this motor is stock or if you've done anything inside (performance wise) . If you've done any performance mods, will the step down from the 2" down to your mufflers restrict the exhaust flow any?    ...cougar...
Thanks mate, the engine has all new bearings, chains and tensioner/adjusters, rebore 1st over, cycleX hi flow valves and bronze guides, kibble springs, CX-1 cam and a little porting, the PO has had someone ,er "rebuild" the top end :o it had not been fired up since then luckily but someone also has hacked out 3 of the combustion chambers, not full hemi but about half way and only 3 so I got out the trusty dremil and matched the last one and tidied up the other 3 best I could. I CC'd the head and it all looked pretty even. When I finally fired up the bike after bench syncing the carbs I put on the gauges and the carbs were spot on so the cambers must be pretty even. The previous er, "mechanic" had also forgotten to put in the cam chain slipper and the two outer Orings under the cam blocks, nice. There was also some rock ard black stuff on each side of the head gasket, it was everywhere and I had to chip it out of all the stud holes etc, the cam chain jointing link was bent as well.
The mufflers are straight through, they have a long baffle with wading around the outside but there's no restriction, the step down won't hurt it at all, 2" to 1 1/2", actually I'm not rapt in the note, a bit barky, esp with a bit of throttle, I really liked the Dunstall decibel silencers but they are long gone now.
Cheers mate. Nic.

Offline cougar

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Re: Basket case 750 K2. All finished with short audio clip just for laughs.
« Reply #27 on: September 06, 2013, 10:50:03 AM »
Nic ; Very cool that you've gone and done up the motor with the additions you've mentioned ! Although I've never been in my motor since I got the bike 4 years ago it seems to have a Nice power band. Although I've not ridden a stock SOHC750 I almost feel like mine has had work done to it, 'cause it pull like a SOB with the 17/43 sprockets it has on it. When I first got it it had 17/48 sprockets and when I'ld yank the throttle from about 3500 it would try to pull the front wheel off the ground. I'm sure if I would have gone with a larger sprocket on the rear pulling the front wheel would have been no problem at all. But I'm not really into racing from stoplight to stoplight with this bike, just cruising. My project bike will be more performance oriented as I plan on building a Turbo bike using most everything from a 1982 Yamaha SECA 650 Turbo that I bought for parts. I understand about not quite liking the tone of an exhaust. My current muffler is an exhaust tip from a local Monster truck (I think) that I found along side the road,LOL ! After I sanded all the chrome down (ruffing it up) I sandblasted it and shot it with multiple coats of High Temp semi-gloss black (I don't like chrome  :o) . I bought a 4>1 with a flat collector and did the same to it which was nice till I destroyed it (the collector) coming up my driveway . Then I bought a (so I'm told) Tri-Y type Hondamatic header. Then I had to cut and reweld a larger inlet to my muffler to fit the Hondamatic header because it had a larger outlet then the first 1. Pics of the exhaust are here,  http://www.flickr.com/photos/41094004@N07/sets/72157624056071846/ . I built my own baffle also shown in the link, which I originally wrapped with fiberglass which gave it a mean low growling tone  :D ! The baffle matches the inlet and the slots you see are where I cut partway through the pipe then bent them down into the baffle so when the exhaust hits them it's directed out into the packing material. After a couple of seasons the packing had blown out, so I tried wrapping it with multiple layers (15 I think) of wire window screen,LOL ! But it has just a little to tinny sound for me so I'll probably repack it with a layer of fiberglass again. I'm trying to add a short vid of my bike with sound http://www.flickr.com/photos/41094004@N07/8309950596/#secrete56845bb64in/set-72157624777973420  just to give you an idea of what my bike sounds like. When I repack the muffler it will have a little deeper tone !!  Here is a link of what my bike looked like when I got it. http://www.flickr.com/photos/41094004@N07/5056412420/#in/set-72157624777973420 Sorry for the poor quality, just didn't think to take a good pic,LOL ! Like I've said I don't know if anything has been done to the motor (internally) !   ...cougar...
I'm not prejudice, I'll weld anything that pays! Knowledge that is shared is Never Lost!!   Right is right, wrong is wrong! The truth is the truth and a lie is a lie! DEAL WITH IT ACCORDINGLY !!!   I HATE "DIAL-UP"

Offline rtbmrgl

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Re: Basket case 750 K2. All finished with short audio clip just for laughs.
« Reply #28 on: September 08, 2013, 02:48:35 PM »
I like the black cylinders!! nice job
thanks, Mark
Roseville, Ca

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1973 CB500 back yard find 1243 orig mi,  http://forums.sohc4.net/index.php?topic=124285.0
1976 CB750 Restoring,        http://forums.sohc4.net/index.php?topic=132997