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Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Will you be doing the work yourself? If so, here is what I would do after I purchased the OEM service manual for the bike.
1. Send cylinders off to one of our form sponsors to bore to 98" and have a set of CP pistons with a 3cc dome fitted; should cost about $500 plus shipping; assemble with a .030" head gasket.
2. Inspect OEM cam plate and pump and reuse if in good shape; replace OEM chain tensioners with a set of CYCO tensioners; bearings, tensioners, o-rings and gasket should run less than $100.
3. Send heads to one of our forum sponsors for clean up and Stage 1/Street port job; should run about $500.
4. Re use OEM pushrods.
Call Scott at Hillside Cycles and Kirby at VeeTwin Peformance to see what kind of "package" they can put together for you.
This is pretty basic but will require most of your budget but this new configuration will require tuning to optimize the performance. There are several options from "pot" type fuelers like the Dobeck TFI which is a DIY device that lives on the bike and is referred to as a "electronic jet kit"; runs about $275. Next up the line would be the V&H FP3 which is a "flash" tuner that reprograms the ECM and can be done DIY without a dyno; I have seen them on Amazon for about $360. The FP3 is a DIY device and from what I read, easy to use, controlled via cell phone, good reports from users and V&H provides good customer service. Nect up the line is a full on flash tuner like the DJ Power Vision which does require a dyno tune. You are looking at $500-$600 for a license which most tuners will sell, plus the dyno tune. I know the tuner busted the budget as would a cam set but the above modifications, plus a proper tune will produce very satisfactory results. You can add cams later.
My bike is has a carburetor. Are all the modifications something I could do at home? Or will these modifications require it to be tuned by a proper mechanic shop? Do you have a number for the guys you mentioned
My bike is has a carburetor. Are all the modifications something I could do at home? Or will these modifications require it to be tuned by a proper mechanic shop? Do you have a number for the guys you mentioned
Carburetor? even better. The CV carb is relatively easy to tune; go up on the main, maybe the slow, raise the needle and done. One of my bikes is carbed and I wish both were. I tuned my all bore 107" motor with a CV40 on the dyno; took about six pulls and 2 hours.
Yes, with basic mechanical skills and tools, the service manual and assistance from this forum, it's a DIY upgrade. You might need torque wrenches, ring compressor, etc. and work arounds for the "special" tools show in the service manual.
You won't even need a ring compressor. Most of the guys on hear will fit the pistons and rings and install into the cylinder after the bore and hone so all you have to do is pop them onto the connecting rod... Very simple. Just don't let the piston slip out of the bottom of the cylinder as your assembling them... So gaskets, tools, FSM and a twelve pack. these guys are only a phone call away........ good luck... You won't be sorry...
one of the most important things to think about here is your choice for exhaust system. do you already have one or is your bike stock? If you are still stock you will want to do some home work on this, as not all systems are created equal, both on performance and sound. take a little time and choose a system that will work well for you now AND in the future if you think that you might want to get more out of it again.
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I have an aftermarket carb and Thunderheader exhaust, I think thats what it it. Would I have to change the cams if I upgrade the pistons heads and jugs?
I have an aftermarket carb and Thunderheader exhaust, I think thats what it it. Would I have to change the cams if I upgrade the pistons heads and jugs?
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