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  #41  
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Looks like a dished piston so I would say its a 1200 now !
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  #42  
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Matt Black Matt Black is offline
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Quote:
Originally Posted by IXL2Relax View Post
Here's the Sportsterpedia (SP) section on the CV40 carb:
http://sportsterpedia.com/doku.php/t...40_carburetors

I would not put a 40 slow jet back in the carb... See the SP - Stock was a 42
Are you sure about the stock jet? Going over the chart in the SP, it says stock slow jet for 1995 (both 883 and 1200) is a 40.
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  #43  
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Quote:
Originally Posted by Matt Black View Post
Are you sure about the stock jet? Going over the chart in the SP, it says stock slow jet for 1995 (both 883 and 1200) is a 40.
You're right - I must have looked at the wrong line... No matter - I would now start with the 45 slow jet - and at least a 175/180 main jet (Keihin jets are different from DJ jets)... That starting point is going to be close to what you will need for a 1200 with any decent air cleaner and exhaust - along with the N65 needle...

I suspect the poor jetting led to the burnt slide/diaphragm...

Pistons look dished to me - likely to be 1200 conversion with 883 heads...

I second the idea from Cotton to vent the head breather externally...

What ignition module are you planning to use? What is with the bike?

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  #44  
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Quote:
Originally Posted by cotton1 View Post
One thing I thought of was the intake bolts. The factory bolts vent back into the intake, some folks like to change that so that the blow by doesn't go back to the intake.

Cotton1
From what was in the box 'o parts that came with it, I think the Hypercharger he had on there used the factory style setup and vented back into the air cleaner. I was planning on running a set of the hollow bolts that have mesh or some kind of filter element in the head held in with a snap ring. The kind of air cleaners I'm looking at (cheap) don't usually have provision for that anyway.

Quote:
Originally Posted by IXL2Relax View Post
- along with the N65 needle...
I just ordered a tuning kit from CVP, it comes with a new needle but I think it's the other one.


Quote:
Originally Posted by IXL2Relax View Post
What ignition module are you planning to use? What is with the bike?

It was running with what ever is in there so I was planning on keeping it. I think it's a stock 883 unit.
It has this printed on the side:
32410-94
9517
883-G
DOM
REV A
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  #45  
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John Harper John Harper is offline
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Quote:
Originally Posted by IXL2Relax View Post
Keihin jets are different from DJ jets
I'm not so sure about that. My DJ jet orifice sizes seem to mirror Keihin sizes. Now, the thread sizes of the jets themselves are different.

175 is 1.75mm, etc.

I would go with a 45 size pilot jet as well. 40 is way too lean.

John
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  #46  
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Quote:
Originally Posted by Matt Black View Post
It was running with what ever is in there so I was planning on keeping it. I think it's a stock 883 unit.
It has this printed on the side:
32410-94
9517
883-G
DOM
REV A
PLEASE - Don't put that back in operation on this bike - To use that, you have to retard the timing too much, the curves are not designed for the 1200 engine and while it will run, it will not be getting the value out of the 1200/N2 upgrade... The performance will be seriously detuned...

When I did my 1200 upgrade (with Lightening Heads), I replaced my stock 1200 ignition module with a Screamin' Eagle version designed for the 1996-97 1200 models, which has the 6800 rpm limit - but even the stock 1996-97 ignition module (32465-95A - with the Q-curve & 6250rpm limit) would be better than trying to use that 883 version... The 32465-95A is a plug&play upgrade that is 100% compatible with the original ignition module connector...

Of course, you could also buy one of the more recent adjustable ignition modules...

It seems this bike was abused (tuning wise) in a number of ways...

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Figures.

The guy I bought my seat from (on CL last Fall) also had a brand new in the box Screamin' eagle ignition module for a '95 1200 that he wanted $75 bucks for.... I didn't think it would work right because mine was originally an 883.


Since it looks like my cylinders are stock 883 that have been bored, do you know of any way to tell if the heads are stock or not? I haven't been able to find any info by searching Google on the F and E casting marks.
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  #48  
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Try this:
https://www.ebay.com/itm/183035021070
Offer $35.00 - see what he says...

I don't think I can help with the heads - If you don't take them off, it would be reasonable to assume they're stock and move on...

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Last edited by IXL2Relax; 3 Days Ago at 20:14..
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