Late CB750?

[Paul in NZ]

Yes the fugly DOHC ones with the inclined engines and horrible comstar wheels.

I've work on one and ridden it a short distance (fuggin awful) but in general, what are they like powertrain wise?

[RDjase]

Yes the fugly DOHC ones with the inclined engines and horrible comstar wheels.

I've work on one and ridden it a short distance (fuggin awful) but in general, what are they like powertrain wise?

The ones like CB900's or that in between (K model) ?

The CB900 type had strong engines, but have a chain drive primary to gearbox that gets tired . My mate drag raced one. I think the 750's were the same. Not a honda expert tho. I just had a 900 with cams and carbs, It went really well

[AllanB]

Is it the CB750F? same as the CB900F but a 750.

1980 something?

I like them. Comstars look good blacked out if that helps!

If I remember they proved to be reliable. High km ones may get a camchain rattle.

Wiseco had a big bore kit once .......

[madmal64]

Similar to the CBX750F?
If so this is a good place to start Paul
http://www.teamrc17.net/
Viking and the rest of the group know thier stuff on these things
EDIT:
Just had a look at the above site and they do have some info on the CB

[Paul in NZ]

Nah - the later (1980 or so) one with the tipped forwards engine like the 900.

Just wondering, (at the moment)

[F5 Dave]

engine wise they should be fine unless if at some time in their life the oil was run low which will shag the crank & turn a oil light on to tell you it's ferked.

Probably a good thing, feck they were dreadful compared to the Suzuki of the same vintage.

[HenryDorsetCase]

Yes the fugly DOHC ones with the inclined engines and horrible comstar wheels.

I've work on one and ridden it a short distance (fuggin awful) but in general, what are they like powertrain wise?

For their time they weren't a bad bit of kit. Remember in the early 80's there was power (kindof) but not chassis or tyre technology to make it that usable.

Ive done a few miles on one and it rode very well at the time. I had a ZX750A3 at the time which was from about 84. I think they're very reliable. In the day we called them "Rolladoors" as hilarious parody of Bol D'Or.

[F5 Dave]

Rollerdoors were the full fairing version. Typical Honda trying to extend the life of an obsolete model by adding 30kg of weight to the front of the bike.

[jellywrestler]

Rollerdoors were the full fairing version. .

not so, the 1979 FZ had bol d or on the sidecover and the nickname started then

[F5 Dave]

Hey, every day's a school day. Quite often you learn stuff you'd rather forget, - but I have a plan involving beer.

[Bonez]

Nah - the later (1980 or so) one with the tipped forwards engine like the 900.

Just wondering, (at the moment)

Had one 23 years(Gerty the Integra). http://www.kiwibiker.co.nz/forums/showthread.php?t=6072 Absolutely shocking. Must get the carbs back in and the charging issue sorted. Collected a few bits n bobs over that time, as you do.

An excellent resource at http://www.cb1100f.net/

The CB70KZ was the first of that line of engine in production being Aus BOTY for '78 or '79 (damn memory) sharing it with the CX500. RollaDoors where the 900s but the later 750Fs inhereted that moniker by the uneducated(ell they looked the same so you can forgive them .

Of course Honda in there wisdom thought it was a great idea to have two cam chains in these brutes, what where they thinking? And as previously mentioned they have a chain primary drive.

Not as well balanced or powerfull as the later CBX750, which were a total redesign. Btw a later cb750s use an engine evovled from the cbx750 which was in production at least till 2008 in the Jap domestic market. Called Nighthawks in some markets only ever seen here as grey imports.http://en.wikipedia.org/wiki/Honda_CB750

I'd own another F at the right price if it is in reasonably good condition. Later ones, like Gerty, had bigger fork tubes, TRAC and wider rims with banana type comstars and twin pot brake calipers all round.

[SPman]

Weren't they the last Hondas to have 4 pipes?

[Bonez]

Weren't they the last Hondas to have 4 pipes?

The Cb750KZ was. This could be what Paul is looking at. Fs had twin mufflers and are certainly nicer to look at. But Honda has made a few models in recent history for the jap retro market with 4 into 4 though.

Edit-No I was wrong the CB650(had one of these)/CB750/900 customs were 4 pipers too.

[Paul in NZ]

Well I was attracted to the big DOHC tilted forwards donk and thinking hmmmm... that looks a bit (if you squint) like a 60's Honda factory racer engine and since they are CHEAP and other donors for a cafe racer are NOT cheap I went... hmmmm!

[BMWST?]

For their time they weren't a bad bit of kit. Remember in the early 80's there was power (kindof) but not chassis or tyre technology to make it that usable.

Ive done a few miles on one and it rode very well at the time. I had a ZX750A3 at the time which was from about 84. I think they're very reliable. In the day we called them "Rolladoors" as hilarious parody of Bol D'Or.

at the time the honda 900 was on a par with the gs1000...and was prolly a better package than the gsx 1100.I has two a FZ and then the FA.I was gonna buy a gs100 but wheni passed about four on the hutt motorway i thought bugger that every man and his dog has got one.....