Author Topic: First dragstrip pass. CB750F dragbike (Read 3834 times)

dragracer · « **on:** December 28, 2019, 09:07:37 pm »

Below is a link to the 1st shake down pass on the new build. This was only a soft pass to be certain the bike would make a full "A to B" pass down the track. Had a few shifting issues but it still ran a 6.86@100mph. I need to increase the kill time between shifts and fix an air leak along with softening up the rear sock before i go out again. Keep in mind, this was NOT a full throttle pass. There is a lot more in this bike.

https://studio.youtube.com/video/RMuhWb1mFHo/edit

dragracer · « **Reply #1 on:** December 28, 2019, 09:12:08 pm »

A few stills.

Jerry Rxman Griffin aka MuthaF'er · « **Reply #2 on:** December 28, 2019, 10:47:35 pm »

I couldn't open it. Anticipation........

turboguzzi · « **Reply #3 on:** December 28, 2019, 10:50:19 pm »

Stills look cool but couldn't open the link...

dragracer · « **Reply #4 on:** December 28, 2019, 11:27:09 pm »

Try googling: Honda CB750 F1 dragbike test pass. South Carolina Motorplex, or go to Loney Motorsports on you tube for my videos.

dragracer · « **Reply #5 on:** December 28, 2019, 11:28:20 pm »

dragracer · « **Reply #6 on:** December 28, 2019, 11:29:25 pm »

Let me know if you can view it from the link above.

seanbarney41 · « **Reply #7 on:** December 28, 2019, 11:41:26 pm »

Yup, that works! Probably the most ripping sohc4 sound i have heard. Very impressive.

dragracer · « **Reply #8 on:** December 29, 2019, 12:06:49 am »

Quote from: seanbarney41 on December 28, 2019, 11:41:26 pm

Yup, that works! Probably the most ripping sohc4 sound i have heard. Very impressive.

Thanks. It was just an easy pass to sort the bike out. I've got a few things to tweak on the bike based on this test pass. Next time I'll feel more confident in turning it up more off the line and then take the shift points up a lot more. If you watched any of the videos of my other bike, you can hear the difference in the way i leave the line- its like night and day. Lol. This new bike only gets babied once - its on from this point forward.

Tintop · « **Reply #9 on:** December 29, 2019, 07:01:18 am »

Quote from: seanbarney41 on December 28, 2019, 11:41:26 pm

Yup, that works! Probably the most ripping sohc4 sound i have heard. Very impressive.

+1

Medyo Bastos · « **Reply #10 on:** December 29, 2019, 07:38:06 am »

Go Frankie, goooo!

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gschuld · « **Reply #11 on:** December 29, 2019, 07:50:25 am »

Looking good buddy👍

Fielding two cb750s next year. Nice.

George

bwaller · « **Reply #12 on:** December 29, 2019, 08:29:24 am »

Glad to see you get that first one done. Onward & upward!

Jerry Rxman Griffin aka MuthaF'er · « **Reply #13 on:** December 29, 2019, 11:25:07 am »

That's MUCH better. Looking forward to the full throttle.

PeWe · « **Reply #14 on:** December 29, 2019, 12:13:26 pm »

Nice sound with good throttle response and idles well too!
- Which cam?

dragracer · « **Reply #15 on:** December 29, 2019, 03:03:12 pm »

Quote from: PeWe on December 29, 2019, 12:13:26 pm

Nice sound with good throttle response and idles well too!
- Which cam?

RC 327 cam Pewe.

Old Scrambler · « **Reply #16 on:** December 29, 2019, 03:26:40 pm »

You know what your doing...........and the bike likes it

.........something like letting the lead-dog GO

PeWe · « **Reply #17 on:** December 29, 2019, 09:18:40 pm »

OK, that explain some. I talked to a guy that used RC327 in his 970cc street bike many years ago. I was sure that idle should be much worse.

seanbarney41 · « **Reply #18 on:** December 29, 2019, 09:25:15 pm »

Frank, I nominated this bike for bike of the month. Somebody needs to go second the nomination.

dragracer · « **Reply #19 on:** December 30, 2019, 09:38:44 pm »

Quote from: seanbarney41 on December 29, 2019, 09:25:15 pm

Frank, I nominated this bike for bike of the month. Somebody needs to go second the nomination.

Thanks seanbarney. I accepted your nomination on the BOM thread per the rules. I'm uncertain about what I'm supposed to do to continue the process.

seanbarney41 · « **Reply #20 on:** December 30, 2019, 11:47:19 pm »

When the mod (sohc4 caferacerfan) puts up a voting thread, then he will want you to post some info on your bike and pictures, video, timeslips, etc. Whatever you think makes your bike vote worthy. I think there are several nominations right now, so yours may not be up for voting for a month or 2.

dragracer · « **Reply #21 on:** December 31, 2019, 10:16:36 pm »

Well, we just moved into another new year and I know you fellas are probably out partying like its 1999. I just here in the shop trying to figure out what's causing my air shifter leak. After putting on a few used electric over air solenoids, I finally found one that holds pressure. I'll leave this one on until I can order a new one Thursday. There's a track about an hour and a half away from me that's open tomorrow. I'm going to do my best to make it up there to get a few test passes in. My next task for tonight is to remove the mono shock and loosen up the spring a little. I'm turning this baby loose when it hits the track next time.

dusterdude · « **Reply #22 on:** January 01, 2020, 05:09:53 am »

Give it hell frank

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Medyo Bastos · « **Reply #23 on:** January 01, 2020, 08:03:10 am »

We partied like it’s 1999 20yrs ago Frankie! Good luck at the track! Happy New Year!

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Jerry Rxman Griffin aka MuthaF'er · « **Reply #24 on:** January 01, 2020, 09:26:39 am »

The excitement builds.....

News:

Author Topic: First dragstrip pass. CB750F dragbike (Read 3834 times)