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Author Topic: 1980 CB900F Build  (Read 5024 times)

Re: 1980 CB900F Build
« Reply #60 on: Aug 06, 2018, 06:18:36 »
White trace! On the wires! thanks CXman, turns out I had them backwards. My god I have awoken a beast, I got so used to it running on two cylinders that when I finally got it going on four I couldn't believe the noise and revs I could achieve.
Now I have to order float needles and a fuel tap to stop the two petrol leaks I have. Also I will look at getting some new cables custom made to fit.
A knight in shining armour is a man who has never had his metal truly tested.

Offline cxman

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Re: 1980 CB900F Build
« Reply #61 on: Aug 06, 2018, 07:55:39 »
they are a blast to ride just wait i love mine
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Re: 1980 CB900F Build
« Reply #62 on: Oct 12, 2018, 03:27:58 »
What adventures I've had! So I got the new float needles and stopped the leaking from there and also put a new fuel tap on and stop the petrol leaking from there too but now its weeping out of the carby bowl. (Pictured) I have ordered new gaskets for them. One day this bike wont leak fuel!
I sent the cables away to get shortened and they come back a perfect fit! pays to measure things twice.
The fuel temp sender that I put in the sump is also leaking oil. (Pictured)
Bike stopped charging so I replaced the coil and now its working.
I have been for a few short rides and just the other day it sounded a bit "crunchy". I thought that the chain might have a seized section in it so I rolled it on to the hoist to check it but before I could get it on it stopped rolling dead in its tracks. Turns out the front caliper bolts were only hand tight and the nuts had fallen off, the bolt was sticking out hitting the forks! Glad I worked that out in the garage and not on the road. So now I have to order a new bolt and some nuts.
A knight in shining armour is a man who has never had his metal truly tested.

Re: 1980 CB900F Build
« Reply #63 on: Oct 12, 2018, 04:32:23 »
Correction - Rotor bolts, not caliper bolts.

Also looking in to a fork and swing arm conversion next winter. Taking ideas now though.
A knight in shining armour is a man who has never had his metal truly tested.

Offline advCo

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Re: 1980 CB900F Build
« Reply #64 on: Oct 12, 2018, 10:52:22 »
Damn, you got lucky on that rotor bolt. Make sure to loctite those when you reinstall. Use the Red stuff.

For the leaky sender on the sump, next time you do an oil change (after you've drained the oil), clean everything with acetone or alcohol. Then use some Yamabond, a tiny bit on the threads and some on the sealing surface to seal it up. Let it set up overnight before you fill it with oil again.
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0 - Sold
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0 - Sold
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0
'97 BMW F650st - http://www.dotheton.com/forum/index.php?topic=75732.0

Offline VintageMBike

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Re: 1980 CB900F Build
« Reply #65 on: Nov 04, 2018, 19:56:25 »
White trace! On the wires! thanks CXman, turns out I had them backwards. My god I have awoken a beast, I got so used to it running on two cylinders that when I finally got it going on four I couldn't believe the noise and revs I could achieve.
Now I have to order float needles and a fuel tap to stop the two petrol leaks I have. Also I will look at getting some new cables custom made to fit.

I can appreciate the hard work that went into the bike, but Im a purist. I have a 82 CB 900F and the most I did was put on red s/s brake lines, and CR carbs. Not knocking your fine work at all, but I dont know why ppl chop these things up.


« Last Edit: Nov 04, 2018, 23:19:42 by VintageMBike »

Offline Popeye SXM

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Re: 1980 CB900F Build
« Reply #66 on: Nov 04, 2018, 22:04:13 »
Quote
Not knocking your fine work at all, but I dont know why ppl chop these things up.
CB900's are great bikes. For me Tim's is cleaner and better looking but that is what customising is all about, making it yours. Nothing wrong with original. I am pleased to see these great bikes being enjoyed

Offline cxman

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Re: 1980 CB900F Build
« Reply #67 on: Nov 04, 2018, 22:33:25 »
nice job glad you got it sorted its a wonderful bike and a lot of fun
1978 CX650 Super Deluxe
1979 XS1100 Special
1974 xl350
1983 cx650 Custom
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1974 kawasaki 350 bighorn
1983 GL1100 aspy full dress
1983 GL1100 Nekid
and a bunch of others

Offline VintageMBike

  • Posts: 56
Re: 1980 CB900F Build
« Reply #68 on: Nov 04, 2018, 23:04:24 »
nice job glad you got it sorted its a wonderful bike and a lot of fun

If you were responding to me, yes its an AMAZING bike. I love that "WHOOOSH" that happens just after 6,000 RPMs Truly a fun bike.

Offline VintageMBike

  • Posts: 56
Re: 1980 CB900F Build
« Reply #69 on: Nov 04, 2018, 23:10:58 »
CB900's are great bikes. For me Tim's is cleaner and better looking but that is what customising is all about, making it yours. Nothing wrong with original. I am pleased to see these great bikes being enjoyed

I think the thing that bothered me the most is the taillight. Its massive and not proportional to me. I chopped up my first bike into a cafe racer and regretted it.

I notice ppl list their cafe racers for OUTRAGEOUS sums when they decide to sell them. I have a stock 1971 Honda CB 750 that I sold last month for $6,000 (it had 15k true miles on it).

A friend had the same year bike, a 1971 with 9,000 miles on it. However he cut the rear, put a hoop, flat seat and after market "Day maker" headlight on it, and did all kinds of cafe stuff to it. Looked amazing, but it was hacked. He listed it for $9,000 and ended up getting $3,000 for it. What a shame. Stock will always have better resale value. These are my 5 bikes, mostly stock:

« Last Edit: Nov 04, 2018, 23:18:29 by VintageMBike »