Author Topic: cb125 with 185cc engine. how does this work? (Read 21433 times)

grcamna2 · « **Reply #25 on:** July 08, 2016, 04:28:24 PM »

I thought I'd upload a pic of my little 'workhorse',not too pretty to look at but it gets the job done.

grcamna2 · « **Reply #26 on:** October 16, 2016, 08:45:46 AM »

grcamna2 · « **Reply #27 on:** October 17, 2016, 08:05:13 PM »

I'd be curious to know if anyone else has modded the CB125S or even if there is a special site dedicated to them.

Don R · « **Reply #28 on:** October 18, 2016, 11:02:07 PM »

I had a thread here on my cl100. I converted it to 12 Volts with a cb360 stator. The original charging system was hacked up.

grcamna2 · « **Reply #29 on:** October 19, 2016, 04:36:33 AM »

Quote from: Don R on October 18, 2016, 11:02:07 PM

I had a thread here on my cl100. I converted it to 12 Volts with a cb360 stator. The original charging system was hacked up.

I remember reading that Don and it was good.

grcamna2 · « **Reply #30 on:** June 23, 2019, 06:26:08 PM »

Wondered if there was any interest in this tiddler project?

C5crx · « **Reply #31 on:** September 06, 2019, 08:06:33 AM »

I have a 75 cb125 w a 1980 xl125s in it. I did the 61mm big bore. I just dusted it back off last year to finish dialing it in ( i moved and didn’t have a work space. I swapped it in 2013...) I put an Mb5 front fork n wheel in it too.

seanbarney41 · « **Reply #32 on:** September 06, 2019, 08:50:36 AM »

Nice little bike camna...glad I finally got to see a pic of it.

WhyNot2 · « **Reply #33 on:** September 06, 2019, 12:01:27 PM »

Quote from: C5crx on September 06, 2019, 08:06:33 AM

I have a 75 cb125 w a 1980 xl125s in it. I did the 61mm big bore. I just dusted it back off last year to finish dialing it in ( i moved and didn’t have a work space. I swapped it in 2013...) I put an Mb5 front fork n wheel in it too.

Got any more on this.....pictures, build thread....etc.

C5crx · « **Reply #34 on:** September 07, 2019, 08:04:42 AM »

Sorry no build thread. It started as a parts bike then a title showed up after I had pulled the motor for a different project. So I started looking to find an engine to build it into a fun around town bike. It’s got a vm26 on it and a foam filter so I could fit the side cover. From there it keep evolving anytime I found a cheap or leftover part I could upgrade it with. Here’s a picture of my rat rod lol. Had to tweak the rear mount, top mount and widen the foot pegs. I haven’t done a top speed run but she cruises at 50 really nice and there is still a lot left.

C5crx · « **Reply #35 on:** September 07, 2019, 08:27:25 AM »

My phone wasn't posting the pic. So one more time..

WhyNot2 · « **Reply #36 on:** September 09, 2019, 05:56:48 AM »

Cool, nice looking, just wish I could get mine going...........it's a single cylinder, how hard should it be to get these darn things going smoothly.

Sam Green Racing · « **Reply #37 on:** October 11, 2019, 05:25:24 PM »

I've no idea if it can be found on here but many years ago it was posted here.
A guy took a CB125 single, removed the head and block and blocked off the hole.
He made a new hole in the front of the motor and grafted on one cylinder from a DOHC 4 cylinder 600 Yamaha.
This gave him a DOHC 175 single and not content with that, he supercharged it.

OK guys, lets see who can find it as I'm off to bed.

WhyNot2 · « **Reply #38 on:** October 11, 2019, 07:18:55 PM »

ha ha.................challenge............

Sam Green Racing · « **Reply #39 on:** October 12, 2019, 05:32:11 AM »

Found it guys, not sure what you can see as it's on that photobucket thing and I can't see sod all. hahah.

http://forums.sohc4.net/index.php/topic,35474.msg743467.html#msg743467

grcamna2 · « **Reply #40 on:** November 20, 2019, 09:35:25 PM »

Quote from: WhyNot2 on September 09, 2019, 05:56:48 AM

Cool, nice looking, just wish I could get mine going...........it's a single cylinder, how hard should it be to get these darn things going smoothly.

That looks good ! How's it run ?

grcamna2 · « **Reply #41 on:** November 20, 2019, 09:41:47 PM »

Quote from: Sam Green Racing on October 12, 2019, 05:32:11 AM

Found it guys, not sure what you can see as it's on that photobucket thing and I can't see sod all. hahah.

http://forums.sohc4.net/index.php/topic,35474.msg743467.html#msg743467

I linked to it.He's really got that little bike geared-up! I guess it'll get up to speed.I can see why he's looking for a slippery fairing to cheat the wind

grcamna2 · « **Reply #42 on:** January 17, 2020, 12:03:33 AM »

Quote from: C5crx on September 07, 2019, 08:27:25 AM

My phone wasn't posting the pic. So one more time..

Nice,how do you like the MB5 front end ?

cbornotcb · « **Reply #43 on:** January 26, 2020, 12:56:54 AM »

Quote from: Sam Green Racing on October 11, 2019, 05:25:24 PM

I've no idea if it can be found on here but many years ago it was posted here.
A guy took a CB125 single, removed the head and block and blocked off the hole.
He made a new hole in the front of the motor and grafted on one cylinder from a DOHC 4 cylinder 600 Yamaha.
This gave him a DOHC 175 single and not content with that, he supercharged it.

OK guys, lets see who can find it as I'm off to bed.

Close Sam,,Ha Ha,,but your brain rolled 2 projects into one-
Tiny

cbornotcb · « **Reply #44 on:** January 26, 2020, 01:26:24 AM »

More pics

C5crx · « **Reply #45 on:** January 27, 2020, 11:43:20 AM »

The forks are a touch short. Which wasn’t bad till I put some bigger rear shocks on it to stiffen it up. (I’m 6’3” 220lbs) My head bearings were questionable when I swapped the front end over. (I have some tapered ones to put in once I make space) All that said it rises pretty well not twitchy and could use a 10wt fork oil over the ATF. Besides that it’s got cheap pads on it and the original brake line. It will pick the rear tire up if I really lay into them. I need to alter the steering stop. They just touch the front of the tank at full lock. I’ve been debating finding an inverted fork that’s longer to swap on but I really like the look of it as is. I just got a cl175 tank with some great patina but haven’t fabbed the mounts yet. Once I get it on I’ll post an update pic.

grcamna2 · « **Reply #46 on:** March 05, 2020, 07:10:20 PM »

Quote from: C5crx on January 27, 2020, 11:43:20 AM

The forks are a touch short. Which wasn’t bad till I put some bigger rear shocks on it to stiffen it up. (I’m 6’3” 220lbs) My head bearings were questionable when I swapped the front end over. (I have some tapered ones to put in once I make space) All that said it rises pretty well not twitchy and could use a 10wt fork oil over the ATF. Besides that it’s got cheap pads on it and the original brake line. It will pick the rear tire up if I really lay into them. I need to alter the steering stop. They just touch the front of the tank at full lock. I’ve been debating finding an inverted fork that’s longer to swap on but I really like the look of it as is. I just got a cl175 tank with some great patina but haven’t fabbed the mounts yet. Once I get it on I’ll post an update pic.

Excellent

grcamna2 · « **Reply #47 on:** April 07, 2020, 11:38:52 PM »

News:

Author Topic: cb125 with 185cc engine. how does this work? (Read 21433 times)