how to

I have a 1991 Nighthawk 750 and the front fender has a cracked next to one of the forks. What is the best way to repair the crack?

Hello All, I just registered and new here. I'm hopeful I can get and share help. I just bought a cb750. According to the numbers the frame is a 76' and motor is 75'. Is this common? I had several bikes when I was younger when I had more money than brains now I have both. I plan to modify my 750...

Hi there, I started with a battery charging problem that I still try to solve. I got a new wiring harness, new battery, new regulator/recitifer. I check my starter coil and the resistance showing are great. My problem here is that when I plug the new harness to the new rectifier, the plug...

Hi there, I have an alternator issue. I first started to work on it because my battery wasn't keeping the charge. So I got a brand new battery, brand new regulator/rectifier (wanted to get those small lithium battery anyway). But I realize that I have no Volts coming out of my Alternator (3...

Hello, Is it difficult / expensive to convert a hondamatic 750 to a manual transmission. If so, what are the basic (high-level) of doing so? Thank you

Hey all, just started this build a couple months ago. Any help, thoughts or opinions will be appreciated.

Hey guys I have a '72 750 k2, I love it. Last year at the end of summer I noticed if i let the bike sit after riding, I would come out to a puddle of gas underneath her. I can't find a leak anywhere. I can ride all day and nothing... until She sits all night. The #4 carb is pretty corroded, I'm...

I have searched the internet to find a nice diagram of where the adjustment screws are on these carbs and I haven't found anything great. Also, I was born in '85 and while I like carbureted engines, carbs are just before my time and no one has really shown me how to adjust them properly. My '79...

I am in the process of designing and putting ideas together for a build. Wondering if anyone has done a build with a single side swing arm on a 1976-1978 Cb750 frame. I already have a Ducati swing arm. If I have to engineer parts that is fine but wondering if someone has already done this kind...

I am building a bike and only want the what i need to make the bike run. I have a break light withe a lever momentary switch, a head light with a toggle switch to turn it off, and a kill switch. I don't want a starter motor so I shouldn't need a big battery or no battery? hopefully someone has...

Hello all. I just bought and engine, frame and front end. I don't have much love for the frame (no title) but the engine and front end is what caught my attention (I was just in a wreck, the engine and forks are toast). I just discovered in the process of removing the forks for an even swap that...

Hi everyone, I'm new here and I am looking to purchase my first motorcycle as a CB750. There are a couple for sale in my area and I was hoping you all could provide some input on how I should make this decision. The first is a 1976 and I'm assuming it's the super sport model based off the...

Can I use 13213-KV0-000 bolts in lieu of 13213333003 which are no longer available from Honda for my 1975 CB750 F0 (Super Sport)? Thanks all.

Its apparently possible to change the gasket without taking the engine out... https://www.youtube.com/watch?v=2orch75W2uI This guy on youtube did it. But I cant figure out how to get the screw by the frame out... at 1:13 the video shows a s shaped tool which I have but I cant find a tool that...

Posted piston ring installation on www.motobonita.com. Website contains everything I've done so far on my '75 F0.

Hey everyone, As the title says, i need some help setting the pulse generator. i havent been able to find a manual for this model that explains how exactly to set this thing. from what i have seen there should be adjustment markers but mine doesnt seem to have anything that they are...

New content on http://www.motobonita.com. Getting started to recombine the two case halves of the lower end!

Hello all, continuing to add new content to www.motobonita.com. Includes how-to videos on rebuilding and reassembly of all of the lower end components on a SOHC CB including the shifter, crankshaft, kickstarter, main drive sprocket, and transmission. check it out. http://www.motobonita.com...

Originally had 68 pilot jets and 100 main jets. Got rid of the airbox and exhaust, (now 4-1) So, I went up to 70 on the pilot jets and 105 on the mains. There was some popping and it just wouldn't go after 1/2 throttle. So I went up in size. 80 on the pilots and 140 on the mains. Still not right...

Hey, posted some more stuff on motobonita.com including assembly videos of: 1. Kickstarter 2. Transmission 3. Primary Sprocket 4. Shifter Assembly There are also some intro posts on what tools to buy, what documents to get, etc. for anyone getting started on a SOHC CB750. Thanks, Chris...

Hello, I have a 1975 CB750 Super Sport and I'm documenting it on a website. www.motobonita.com. Please come by and take a look. I'm reassembling the engine now and have several videos. Thanks all. Chris

I'm seeking information on the difference between U.S.A and European carb richness settings. (just curious) Thanks.

I'm going to attempt to change the front fork seals on my 1981 cb750c. Any secrets? I have the repair manual but it doesn't really show me anything other than the obvious. Any special tools or tricks? Will I need to "lift" the front end to get clearance to remove the forks?

Any secrets to changing front fork seals on an 81 750c?

I wanted to just get some advice on removing my starter motor (it is faulty) from my DOHC 1981 cb750 custom. Removal seems fairly straightforward but it appears to me that the carbs have to be removed in order to lift the starter motor out. I watched a pretty good youtube video on removing the...

So I havent had this Cb750 for too long and one of my closest friends wanted to ride on it, even though deep down inside i didnt want to but well i couldnt say no. He has ridden motorcycles before so I wasnt as nervous to let him ride it. 5 minutes later he drops my bike, he was going fast, it...

Hello this here is my bike Now to get to the point. Bike doesn't hold the charge after charging it. I charge the bike, great, it works fine charges hold. When I turn it off, bam! Doesn't wanna turn back on right after I switch it off. The voltage slowly starts going down to 11.5. I don't...

Howdy y'all, I'm looking for help finding a fault in my ignition system on my 1984 Nighthawk 750S. Brief history of bike: A couple of summers ago I bought it through Craigs.Bike ran pretty good. Idled a little rough. There was an intermittent skip to the firing cycle, and I had to play with...

So I am stripping my newly acquired 78, but the swingarm isn't budging. The bolt is out, so now does it just come out? Assuming that the cup looking things are dust cups/seals...help? lol

Hello All. First time here. I just brought home a 1976 cb750k, not running, project bike. During the engine tear down process I removed the damaged point cover and removed the point mounting plate only to find one of the three mounting posts broken. Can this be repaired or do I need to find A...