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Discussion Starter #1
Got 75mm JEpistons ordered for my 929, and a place in Germany that can properly bore and hone alusil on the 929 block. For 500 euro!
Just now sorting out crankshaft bearings, and after much measuring and chin-stroking it seems I might need a couple of size A main bearing shells, which are not listed in the normal parts fiche. These would be color code black I guess, with part number 13313-MWO-003. Does anyone know if they exist?
 

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Discussion Starter #10
just thinking about breaking the bike in after rebuild, and think I'll go the radical route, i.e. use 10-50mineral oil and change it after the first 20 miles, and continue with that oil for another 1000miles or so, then switch to synthetic. I'll use 3/4 throttle now and then, and full engine braking, keeping to the less-populated roads where I can give it bursts of power, keeping the maximum revs to at least 1500rpm under the limit. After the first 20 miles and an oil change, gradually increase the duration and power of the bursts over the next 500 miles , then it should be job done. Opinions?


One other thing, 954 is 2.7% bigger than 929 (so sucks 2.7% more air requiring 2.7% more fuel, right? (there is no airflow measurement on the 929 PGM-FI system, and mine has no O2 sensor and no catalyst, so the system will not register that there is more air flowing, it still relies mainly on throttle position to calculate airflow)) . Mine is fitted with a power commander, so I'm tempted to increase the power commander map numbers by 2-3 across the whole rev range, based on what I saw post by Dynojet research on another site:

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Our values in the table represent a percentage of fuel change relative to injector pulse width. A value of 0 means that the bike will run exactly as stock, no power commander. On a normal bike with 4 injectors if you were to put a value of 10 in the cell it would run about 10% richer. A value of -10 would be 10% leaner than stock. Now you have an 8 injector bike so this goes out the window. It is still 10% richer or leaner but NOT on the overall fuel curve, just on that set of injectors.

Basically, don't worry about the science behind it just know that a negative value is taking fuel away from the stock curve and a positive is adding fuel on top of the stock fuel curve.

If you are using a map that is close to your setup and you have to change the values more than 15 then something is going on. Also if the bike was running so lean as to cause engine damage it would be running horrible and hopefully you would stop riding the bike in that state. If it pulls clean to redline with no stumbles or hiccups you are in the ballpark.

More fuel does NOT mean more power. There are many bikes out there that come way too rich from the factory and we lean them out across the board to gain power.

Hope this helps.


sound reasonable?
 

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Discussion Starter #11
Looks like this is falling on stony ground but I'll continue a little longer. Now checking the state of the gearbox from the original engine. Bit the bullet and took it down to component level and measured all the dimensions specified in the manual. Hardly any wear at all. Thanks Honda.
 

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a belated Christmas present arrived today. Happy boy I am. All bearings sorted, just need to get the rebore/hone done, that's happening second half January. Something to occupy me on these frozen dark nights....
G"day oldbastard, so what size is the 929 going to be now? Just curious.
 

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Discussion Starter #16
So got it all back together..A solid weekends work...I was SO tempted to fire it up before I put the coolant in (Which I usually do just to check all 4 are firing and it sounds reasonable...draining coolant when you don't need to is SUCH a pain...).
Anyway, resisted the temptation because the first time it runs will be a thorough warm up and then immediately 30km of reasonably hard accel/decal to give the rings the best chance of bedding in. And last night I was too knackered to do any more.
 

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Should really have gone out on the bike today , glorious weather here, but had to do the garden, Show us some pics when you get out OB:wink
 

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Discussion Starter #19
Yes I have. Within 0.5g, which for my purposes is good enough. Went for the big start-up this evening, and got a refusal! It was firing on 2 or 3 cylinders, but wouldn't clear itself. Stopped after 3 attempts and pulled the plugs, needless to say wet (gas) and oily. Must have been a bit too keen with the oil when I put the pistons in. Try again tomorrow. Letting the cylinders dry out overnight.
 

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hi guys im new here, i race dirt track sidecars in Australia. i run a 2004 1000rr fireblade,. i recently purchased a WIRING LOOM, and ECU from the states, ive only just noticed damage to the ECUS right hand side, my question is will it still plug in??
 

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