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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #11  
Old 27th March 2013
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KickerD KickerD is offline
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Pulled cam cover last night & my '77 does have the P's in her. Found a metal shaving clung to #2 cam. It resembles a roll pin cut in half along the long axis ("half-pipe"). I am hoping this is a part shim (that may have been shaved or ground up) as everyone talks about and relates to that bulletin H-D put out about not using shims. Going to clean everythin up and may throw PB+ in there. I don't recall seeing a screen in the case but noticed one in many pictures on this forum. Was the screen used in certain years and not others? If it needs to be in there, I will try to locate one.

Eric, thanks for the info on the Solex. I've always been a carb guy ...used to run a Holley 4bbl on a straight 6 AMC Jeep and I've taught many buddies how to rebuild carbs. I am curious to learn more about the Solex and maybe find one some day. Have you experimentd with intake lengths? Was it "Branch" who made the manifold? If you ever come up with a price for your "spare", let me know...but I am in NO hurry right now. Looking to spend some $$ on donor motors and machine work now.

Doesn't look very easy to run IR manifolds for the standard head set-up, I am very curious about the whole reversing head (xr or xlr) set-up and running seperate carbs. That's another couple years (and couple thou $$) away...lol.
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  #12  
Old 27th March 2013
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mct496 mct496 is offline
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76 is the last year for the screen
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  #13  
Old 27th March 2013
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ericfreeman ericfreeman is offline
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Sportster/Buell Model: Ironhead XLH Sportster
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I'd save the money and stick with the P cams. There won't be enough difference to warrant the expense (unless you already have them) on a stock motor.

Yes, Jerry Branch originally set up the Mikuni Solex carbs with his own manifold. I bought my first M-S from Jerry himself back in 1977 for my nearly new '77 XLCH. Truly a wonderful improvement over the stock Keihin.

Eric
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1978 Anniversary Edition XLH. Wiseco 10:1 forged pistons, Andrews R5 cams, dual plugged heads with Super Port Flow, single fire ignition, Mikuni Solex 36 PHH carb, Jagg oil cooler, '73 gauges, kickstart, Barnett kevlar clutch, Progressive front springs, Hagon Nitro shocks, all-Andrews tranny. 1977 XLT, Mikuni Solex 36 PHH carb, tapered dual exhausts, Andrews Y cams, Progressive front springs, Hagon Nitro shocks.
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  #14  
Old 27th March 2013
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chevelle chevelle is offline
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Check your cam cover bushings, they should be pinned w/ pins (possible remnant you found)

Check the link I posted earlier, the stock P's are better than the PB+'s.
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  #15  
Old 27th March 2013
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Thank you, Chevelle. I realize I may not be thoroughly impressed (or even notice a difference) with the PB+. I DO hear everybody's input and advice. I may already be committed in a purchase. I found a whole set (all 4) for $ 100 and some change. I was going to grab them for the price. If sale falls through, I won't change anything. Based on everyone's advice, I am not going to run out and order a set or pay full price.

I'll check those bushings out!
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  #16  
Old 28th March 2013
nomoslomo nomoslomo is offline
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i feel the pain ...ill never get rid of my i.h
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  #17  
Old 29th March 2013
84Iron 84Iron is offline
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I run the andrews y grinds on my 84, I really like em. They're definitely a high end cam, but man do they wake up past 4k...makes for some fun shifting. I do run 10:1 pistons...not sure I'd run a y grind with a 9:1 set up. I've heard of it being done, but I don't think ud experience the full results of the swap. I'd say go for it, as previously mentioned, they work with a stock valvetrain. Good luck
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