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Post by scania on Nov 26, 2014 23:26:52 GMT
Hi Guys, I have never ridden an inline 4 cylinder bike or indeed any heavy bike on the road, biggest I have ever ridden is my CB400na, I am looking at the possibility of acquiring a 1980-ish CB750F by next summer if I can find a good one at the right price. It's the one with the Whale Tail I am interested in. Have any of you guys ever owned both a CB400 and a CB750F (or similar in the past), can anyone describe to me is it much of a step up, or is it much harder to manage and manouver.
My history has been from GS125 to CB250NightHawk, to Cb250n, to CB400n on the road, I will be holding on to my SD's what ever happens they are the perfect bike for me, but I would like to experiment with a CB750F just for the experience. |
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Post by marktrower on Nov 27, 2014 0:33:28 GMT
I have a cb400 na and a cb750fb the 750 is a lot bigger and heavier it helps if you are tall as they are a bit high in the saddle on the move are a very well balanced bike with a smooth spread of power brakes are about the same as the 400 rubbish soft pads and steel pipes in prove them the 900 are the same but have a lot more power parts are cheep and redaley available Very nice bikes i was after a 900 more than happy with the 750 more than enough power for what I want out of the bike now have all the parts now to start to rebuild it still not sure on the colour silver or black
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Post by scania on Nov 27, 2014 5:28:51 GMT
A thought just came to me, would it be possible to fit a cb400n engine into a CB750f chassis, so as to have the bulky look of a bigger bike with the simplicity of a twin engine. (I wish the cb750f was a big twin rather than a 4)
Has anyone ever saw this done or would it be a silly project.
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Post by davefirestorm on Nov 27, 2014 9:49:11 GMT
A silly option in my opinion sticking a tiny engine in a "big" bike,you'll have no problem going up to a 750 inline four lovely smooth power delivery but as stated brakes not great compared to modern bikes.I had a 1985 USA spec Nighthawk 650 (my brother has it now)and it was a lovely bike to ride,6 speed dohc and lowish seat height I found it great and light years ahead of the 550/650 sohc bikes we got here in UK,go for it you won't regret moving up to the 750
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Post by marktrower on Nov 27, 2014 12:30:44 GMT
the japs made some very good big twins in the 70s 80s honda with the cb450 and 500t the best big twin the yamaha xs650 and the not so good tx500 and 750 kawasaki kz750 same style as the z900 very underrated bike just got a minter from dk motors and the w650 twin and the brits were not bad at making twins the later bsa and triumphs of the 70s and 80s are still cheep against the 50s 60s bikes the dohc honda engine no more complicated than the honda twin but you will not get the of the smoothness of the honda 4 i cannot see no reason the 400 twin will not fit into a 750 frame but why
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Post by Harold on Nov 27, 2014 12:34:10 GMT
Just buy a CB750 and take two of the spark plugs out  |
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Post by davefirestorm on Nov 27, 2014 13:43:18 GMT
Silly me I forgot I have a Yammy XS650 in me brothers garage havent ridden it yet so cant comment on it
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Post by daz66 on Nov 27, 2014 15:53:06 GMT
Depends how much you've got to spend but a VFR 750 would an option, I only have the 800 but from what I have heard the 750 is a great bike too its a V4 but very smooth!
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ian
Member Of The Year 2019 
Isle of Man
Posts: 5,266 
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Post by ian on Nov 27, 2014 20:51:20 GMT
I used to have a 1980 CB750K & when I look at my only picture of it, I wonder why I got rid of it. Then I remember how heavy it was - give me a CB400 any day now! Mind you, I'm biased - I don't like heavy bikes. I had a CB500/4 before the 750 - now that's a bike I wish I'd kept! The CB750  The 500/4  Just looking at that makes me want another - but have you seen the price of them now! |
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Post by kickstart on Nov 27, 2014 21:54:42 GMT
I,ve in the passed owned a cb750fa and a few 400 superdreams , both great bikes in their own right , the 750 was heavy but felt very stable , brakes were,nt the best as can be,said for the 400 , but for me I enjoyed the 400 more but that's just me I guess !
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Deleted
Deleted Member
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Post by Deleted on Nov 27, 2014 21:56:51 GMT
I'd say both totally different animals.......to echo Mr Gascoigne.
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Post by kickstart on Nov 28, 2014 21:41:23 GMT
Correct horses for courses I reckon and both great in their own right
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Post by scania on Nov 29, 2014 3:06:16 GMT
Just buy a CB750 and take two of the spark plugs out I'm assuming you are joking, but I am curious if one was to disconnect the fuel lines to two of the carbs on an inline 4 cylinder so as to leave just two cylinders firing (maybe 360 deg apart) and the other two just blowing air with no compression by removing the spark plugs and replacing the two removed plugs with some sort of filters to keep dust out. Then what would happen, would the engine run as a twin?
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Post by davefirestorm on Nov 29, 2014 7:41:11 GMT
Don't think so just run like a four on two cylinders ie rough as a bag of nails |
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Post by kickstart on Nov 29, 2014 8:37:47 GMT
ATT00014Nice avatar image Mr davefirestorm
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