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Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Thu May 11, 2017 7:52 am
by 1127r
Ok lets have another go i lost the message first time round. Firstly thanks for the replys so quickly. I am using an S60 i think the issue i have is because the standard trigger wheel has technically 24 teeth but non missing only two full height uncut if that makes any sense, i have had the engine running on cylinder 1 and 2 with a spark and injection on 3/4 but clearly at the wrong time i cant seem to upload a display of the cranking scan but tells me to use flywheel mode 0 and approx position 287 or 107. i am using one coil per cylinder but..
its almost like it wants to run wasted spark ie one coil per pair of cylinders which my other bikes do on the S40.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Thu May 11, 2017 1:29 pm
by Alex DTA
If1 coil per cylinder is turned off (most likely), you'll need to make sure twin spark is ticked in General Engine Settings to get all 4 coils to fire.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Mon May 15, 2017 2:41 pm
by 1127r
not sure if this upload works

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Mon May 15, 2017 2:53 pm
by stevieturbo
Looks like a fairly normal missing tooth trigger wheel, with maybe 2-3 missing.

Would be easier to tell with a frontal view.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Tue May 16, 2017 4:06 am
by Alex DTA
Post a crankshaft oscilloscope from the software.
I'm pretty sure that's a 24 - 2.

My only concern will be where the gap is relative to TDC, but that will show in the scope.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Tue May 16, 2017 7:44 am
by katana
I wondering if the DTA doesn't even notice the little 'pips' and just sees one long tooth? Step down appears less than half tooth width - issues?

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Tue May 16, 2017 10:11 am
by Alex DTA
Shouldn't be an issue, it's the same as the Subaru 36-2-2-2.
Also, the engines been running, so it can synchronise.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Tue May 16, 2017 10:29 am
by stevieturbo
katana wrote:I wondering if the DTA doesn't even notice the little 'pips' and just sees one long tooth? Step down appears less than half tooth width - issues?
In terms of the trace passing zero on the falling edge..doesnt matter if there is a gap or solid space. Same end result.

No "teeth" creating the falling edge through 0v for that period.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Sat May 20, 2017 1:55 am
by 1127r
Ok guys thanks again for your input i have sussed it now i had to machine away then stock raised area that would have been the missing 2 teeth so now there are two physically missing teeth after doing that i hit the starter and it instantly ran on all 4 pots.

Re: S60 on a Suzuki Gsxr1000 K3/4

Posted: Sat May 20, 2017 3:34 am
by katana
1127r wrote:Ok guys thanks again for your input i have sussed it now i had to machine away then stock raised area that would have been the missing 2 teeth so now there are two physically missing teeth after doing that i hit the starter and it instantly ran on all 4 pots.
In terms of the trace passing zero on the falling edge..doesnt matter if there is a gap or solid space. Same end result.

No "teeth" creating the falling edge through 0v for that period.
Well the OP experience disproves that theory doesn't it.
Whether its just bike installations, but they can be very finicky regarding tooth to sensor gap, gap depths and tooth width measurements and possibly the rate of change in rpm is also a factor.

Glad it sorted with a relatively simple solution.