My Custom GT750's

water cooled · Post by **water cooled** » Fri Apr 15, 2011 6:07 am

Dave, I contacted Cometics earlier this week and they will make the head gasket in several different thicknesses. You should call them and see if there is any way they can back into the numbers you are looking for. I know its unlikely but a gasket is only $58 bucks. Decking is almost 2 X

tz375 · Post by **tz375** » Fri Apr 15, 2011 7:45 am

Dave,

Are you 110% sure the block is sitting down hard against the crankcases? they tend to hang up on the step on those two studs.

If that's not the issue try a different base gasket. At this stage I wouldn't worry too much about .005 too much. I'd bolt it down and run it.

Suzukidave · Post by **Suzukidave** » Fri Apr 15, 2011 9:26 am

Well .. did i make a rookie mistake ( thanx for the thought Richard ) .. the last couple of trail assemblies i had left off those super thick lock washers and the durn head bolts were bottoming out in the bottom of the stud holes in the block after the .092" had been machined off . The block was tightened well so it didnt seem to move but it must have been just enough to mess up the measurement . I put the lock washers back on the head bolts and torqued it all back together and now i am right at .048" across so just a smidge tighter that the .050" i was shooting for but still within tolerance . so yea time to move on

Suzukidave · Post by **Suzukidave** » Thu Apr 21, 2011 9:22 pm

A touch more finish work on them but i cut in the windows tonight

water cooled · Post by **water cooled** » Fri Apr 22, 2011 4:38 am

Dave, that looks incredible. I cant wait! Very nice work!

Suzukidave · Post by **Suzukidave** » Fri Apr 22, 2011 5:04 am

Thanx Kevin , the windows are fully open when the transfer ports are also fully open so the plan is with proper chambers it can still pull mixture in to the chamber even at BDC thru all 3 ports

tz375 · Post by **tz375** » Fri Apr 22, 2011 8:39 am

Getting close now. Those holes look good. Can't wait to hear it in action.

Suzukidave · Post by **Suzukidave** » Sat Apr 30, 2011 4:06 pm

Today i machined the 72~73 pistons designed for the big end thrust washers to work with the crank with the small end thrust washers so it had to machined out from 24.5mm to 26mm http://suzukidave.myphotos.cc/suzukidav ... ction1.gif" onclick="window.open(this.href);return false;

Suzukidave · Post by **Suzukidave** » Sat Apr 30, 2011 4:09 pm

I also got in the replacement ring set that was the correct size , they are now on the pistons

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Suzukidave · Post by **Suzukidave** » Wed May 04, 2011 9:37 am

I went with a black cylinder and head

Post by **oldjapanesebikes** » Wed May 04, 2011 10:06 am

Dave - that looks absolutely stunning

Suzukidave · Post by **Suzukidave** » Wed May 04, 2011 9:24 pm

Thanx Ian , it was a tossup to paint the block and head black .

water cooled · Post by **water cooled** » Thu May 05, 2011 9:42 am

Nice choice....I like the look. Is that an offset drive sprocket I see? (not that i didnt notice the reeds and fuel injection...)

Suzukidave · Post by **Suzukidave** » Thu May 05, 2011 10:28 am

Kevin , its the GS750 tranny output shaft , it has the newer style splines, a bit wider and allows the newer chain widths too so i can run the 520 chain .

tz375 · Post by **tz375** » Thu May 05, 2011 9:35 pm

That's looking good Dave. How long until you get to start playing with the EFI?

My Custom GT750's

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Re: My Custom GT750's

Re: My Custom GT750's