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post #1 of 17 (permalink) Old 04-09-2014, 05:01 PM Thread Starter
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Engine Oil and Fuel Inquiries

Hello Everyone!, I have two main questions and I've scouted over many threads with information to find my questions unanswerable so I'm calling on my fellow riders. That Being said, Below are the facts and below the facts are my Questions. Thank you very much for your continued Support.

Facts: The Bike is a 1999 Kawasaki Vulcan 750A , I use Ethanol free 93 Octane fuel, The plugs are DPR7EIX-9 (less then 100 miles ago), I use Rotella T6 5w40 (Change every 2k miles, last change less then 100 miles ago). I live in in the South in Louisiana and the weather currently is around 75 with the usual humidity regardless of heat.

Question 1: I've read many threads with conversation regarding oil weight and type. That being said I won't be starting any debates but I have a worry which I'm sure could be lightened up. I'm currently using Rotella T6 5w40 synthetic oil in the bike and I change it every 2,000 miles (i know its early but I prefer it this way). The MFR calls for 10w40 as is written on the filler cap on the bike. I hear a ticking noise (which is said here is perfectly normal which tells you its working fine) after the bike has warmed up, this noise feels damaging to me as its semi-loud and the bike heats up more after this ticking starts. and only at non-revving speed such as idling or with the clutch pulled in completely. I'm aware that season as well as location play a factor in oil selection though I love the protection of Rotella t6 they only carry this weight. Ideas?

Question 2: I read a post that stated MFR requires 87 octane but on my bike it still has a sticker that says 93 octane only. So naturally I use ethanol free fuel in order to keep the bike in perfect clean shape. Can someone possibly tell me that this is the correct method?

Last edited by furikazashi; 04-09-2014 at 05:26 PM. Reason: Added residency for information.
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post #2 of 17 (permalink) Old 04-09-2014, 05:29 PM
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Rottella T6 is a perfectly good oil to use. Like half the folks here use it, but there's no reason to change it that early. Synthetic takes longer to break down than organic oil, but can still get dirty. 3-4000 miles between changes is fine. Change your filter with every oil change too.

The bike runs fine on Regular gas. Even 10%ethonal causes no real damage as long as the bike isn't sitting for long periods. The 93 rating you see is a diffrent scale than what is used in the US. Premium gas gives you no extra power, costs you more and in fact can be increasing carbon build up in your engine. Use regular 87-89 octane fuel.

Your ticking sound is likely your ACCT's... There's several threads on adjusting these or even installing manual cam chain tensioners.
Search "Grambo Trick"...

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post #3 of 17 (permalink) Old 04-09-2014, 05:35 PM
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Quote:
Originally Posted by Knifemaker View Post
Rottella T6 is a perfectly good oil to use. Like half the folks here use it, but there's no reason to change it that early. Synthetic takes longer to break down than organic oil, but can still get dirty. 3-4000 miles between changes is fine. Change your filter with every oil change too.

The bike runs fine on Regular gas. Even 10%ethonal causes no real damage as long as the bike isn't sitting for long periods. The 93 rating you see is a diffrent scale than what is used in the US. Premium gas gives you no extra power, costs you more and in fact can be increasing carbon build up in your engine. Use regular 87-89 octane fuel.

Your ticking sound is likely your ACCT's... There's several threads on adjusting these or even installing manual cam chain tensioners.
Search "Grambo Trick"...
Km, My pre-thoughts exactly !

'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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post #4 of 17 (permalink) Old 04-09-2014, 05:41 PM Thread Starter
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Quote:
Originally Posted by Knifemaker View Post
Rottella T6 is a perfectly good oil to use. Like half the folks here use it, but there's no reason to change it that early. Synthetic takes longer to break down than organic oil, but can still get dirty. 3-4000 miles between changes is fine. Change your filter with every oil change too.

The bike runs fine on Regular gas. Even 10%ethonal causes no real damage as long as the bike isn't sitting for long periods. The 93 rating you see is a diffrent scale than what is used in the US. Premium gas gives you no extra power, costs you more and in fact can be increasing carbon build up in your engine. Use regular 87-89 octane fuel.

Your ticking sound is likely your ACCT's... There's several threads on adjusting these or even installing manual cam chain tensioners.
Search "Grambo Trick"...
I did read about the ACCT's but I belived this bike was shaft driven, would it have a chain? Also I do change the filter everytime (should have mentioned) I use a K&N filter (same price as just about any other for me)
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post #5 of 17 (permalink) Old 04-09-2014, 05:47 PM
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the bike is shaft drive.

the chains in question drive the valve gear in the engine (2 cams per head, 2 chains per cylinder)

2005 VN750

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post #6 of 17 (permalink) Old 04-09-2014, 07:15 PM Thread Starter
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Quote:
Originally Posted by michiganteddybear View Post
the bike is shaft drive.

the chains in question drive the valve gear in the engine (2 cams per head, 2 chains per cylinder)
Thank you very much I will look into this procedure and do it right away then post the results immediately
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post #7 of 17 (permalink) Old 04-11-2014, 11:47 AM Thread Starter
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All done, results are still the same. Just to be sure there is only only ACCT on the bike right? I'm considering replacing it due to the bolt not staying secure the way I'd like it to. I Took it off, grabbed a small flathead turning the ACCT clockwise until i heard the valve tap and then all the way CCW until there was good tension , released it, put it back together. all while running, the noise still in existence. For good measure replacing the entire ACCT and researching any other reasons the bike would tap like so. Once again I only found the one on the left side of the bike (sitting on the bike) on the front cylinder. Can't see any rear one
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post #8 of 17 (permalink) Old 04-11-2014, 12:05 PM
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There are 2 ACCT's. one for each cylinder.

one on rear cylinder is kinda hiding behind the coolant bottle.


after you turned the screw ccw, if you just released it, it will spring back into place (they are spring loaded). if you had to turn it in, something wrong there, probably broken spring, or the screw/plunger is gummed up.

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post #9 of 17 (permalink) Old 04-11-2014, 12:08 PM
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There is one per cylinder. The rear one is behind the coolant overflow bottle. A lot of people also replace the ACCTs with MCCTs because they don't have springs that wear out.

2003 vn750
1988 Pontiac Trans Am (project/driver)
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post #10 of 17 (permalink) Old 04-11-2014, 12:55 PM
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Copy & Paste fyi Total Cost: $6.00 - $10.00

ACCT to MCCT conversion video
https://www.vn750.com/forum/showthread.php?t=18235

ACCT to MCCT Conversion Thread created by wib714
https://www.vn750.com/forum/showthread.php?t=17917

There are a couple of threads on here on how to convert a ACCT to a MCCT. I know one members said he'd get a video put up here, but I went ahead and did a video of the MCCT I created.

Supplies needed:
1. 6mm x 40 bolt
2. 2 6mm nuts
3. 1 6mm Locking Washer
4. 1 #12 x 5/8 bonded washer

Parts not needed:
1. Sleeve
2. Spring
3. Flat Washer

I did this on my bike yesterday to the rear cylinder and front cylinder, and they both quit knocking after the conversion. I took the front one off to do this video. I love that we are able to do this conversion.

http://www.youtube.com/watch?v=gY4IEHVqtoY


'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!
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