Calling all mechanics - Wrist Twisters
 
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post #1 of 9 Old 05-17-2018, 07:15 AM Thread Starter
Milites Gregarius
 
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Calling all mechanics

Iím having a problem and I have a suspicion I may be the cause. Over the winter I did quite a bit of work to my 919 all at the same time. Since then I have a complete dead spot between idle and about 2200-2500 rpms. Itís mainly noticeable in first gear, because thatís the gear that sees those rpms.

During the winter I did the flapper mod, pair block offs, changed factory mufflers for Scorpion slip-ons, changed the injectors / throttle bodies, de-rusted the tank, changed fuel filter, fuel pressure regulator, and replaced the air filter. I also did a valve adjustment and this is where I think the problem lies. I think itís possible I have the cams 1 tooth out of time. Dead spot at idle but it runs marvelously at all other RPMs. It also seems to run just a tad hotter than it should.

The temperature problem could be in my head, and the loss of power at idle could be from the slip ons I suppose. Any input?

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post #2 of 9 Old 05-17-2018, 11:11 AM Thread Starter
Milites Gregarius
 
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Here is a picture of my cam alignments. Anyone else familiar with what they should look like?

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post #3 of 9 Old 05-17-2018, 11:51 AM Thread Starter
Milites Gregarius
 
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I found an old thread to reference the marks off of. Iím fairly certain itís timed correctly but Iím still open to opinions before I put it back together one last time.

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post #4 of 9 Old 05-17-2018, 12:29 PM Thread Starter
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Here is a better picture for reference.

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post #5 of 9 Old 05-17-2018, 12:53 PM
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I cannot remember how the marks lined up exactly. But I plan to be in there looking at mine possibly this weekend. I can let you know then.

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post #6 of 9 Old 05-17-2018, 01:24 PM
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Is the "T" mark aligned with the index mark in the timing hole? Your marks look okay, but only if the T marks is lined up.

"Towards the end of the vid, it looks like she may have had a bafflectomy." - MarylandMike
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post #7 of 9 Old 05-17-2018, 01:29 PM
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File Type: jpg UntitledTiming.jpg (237.8 KB, 19 views)

"Towards the end of the vid, it looks like she may have had a bafflectomy." - MarylandMike
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post #8 of 9 Old 05-17-2018, 05:11 PM Thread Starter
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Yes the ďTĒ mark is properly aligned. I went ahead and put everything back together. I was just doubting myself for no reason.

The problem seems to be that I didnít get the bike til October last year after it had cooled off. Now that itís hot out I didnít like how the temp gauge was acting. I think itís all good. Thanks for the input guys.

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post #9 of 9 Old 05-18-2018, 10:11 AM
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I am a recent owner of a 919. Mine goes from cold to almost hot fairly quickly and it's only starting to warm up around here. 15 minutes of riding and stopping at a light usually means the fans are kicking in. That usually brings the temp back down pretty well. I've triple checked my coolant levels.

My 01 TL100R didn't run this hot this fast.

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