Stock exhaust. Shifting time questions.

fatspiderman · July 3rd, 2015, 11:50 AM

Hey guys,

I recently bought my first 250r last year. The previous owner put on a HMF exhaust slipon on it and I've only been riding with it on. It sounds nice but my neighbors have decided enough is enough so I need to put my stock one back on.

The issue is that my tachometer recently stopped working. It's not a big deal since I can shift by sound now but I'm sort of screwed when I put my stock back on.

Any tips on what I should do? Are there any speedometer guidelines I can try to follow?

csmith12 · July 3rd, 2015, 12:00 PM

Hi Dan, the sounds of the rrrrrr's will not change that much by putting on the stock can. You should be able to continue to shift by feel after a ride or two. Just remember, when in doubt, upshift lol.

A 250 can nearly be shifted on the 10's on the speedo for a ~~lazy~~ sound respectful ride but trust your gut and all should be well.

Motofool · July 3rd, 2015, 12:11 PM

Quote:

Originally Posted by fatspiderman

...........I need to put my stock one back on.

The issue is that my tachometer recently stopped working..........

........I'm sort of screwed when I put my stock back on.

............Are there any speedometer guidelines I can try to follow?

Could you explain how are those four things related?

Brother Michigan · July 3rd, 2015, 12:20 PM

Lots of bikes don't even come with tachs, so you should be fine just shifting when you feel like it. Bumping into the rev limiter won't hurt anything and I can't imagine anyone actually rides 250s around at low enough RPMs to lug the engine unless they're just totally not paying attention.

InvisiBill · July 3rd, 2015, 12:36 PM

I generally say to fix the root problem rather than adjusting bandaids.

The tach signal is a black wire forking off between the igniter and coil. The gauge itself is powered by the brown wire and uses the black/yellow common ground wire.

Depending on exactly what's wrong with it, it might not be too hard to fix the tach and make this all irrelevant. Even if you don't specifically need it to shift, I still think it's very handy to know your RPMs.

fatspiderman · July 3rd, 2015, 01:50 PM

I agree with you. I've got all the fairings off right now trying to figure out if it's a wiring issue or not. I mean, everything else works fine, even the light behind the tach. I even checked to see if the needle was stuck or anything but no go. Any ideas?

csmith12 · July 3rd, 2015, 01:52 PM

Had your front sprocket cover off recently? If so, check to ensure the wires are not pinched.

fatspiderman · July 3rd, 2015, 01:57 PM

I followed the service manual instructions.
16-57 disconnect BK lead. reinstall Bk screw. Turn engine on and connect the bk lead to screw to see if the pointer flicks.

It did not and recommends replacing the tach unit. But I don't see how this rules out that a wire is pinched somewhere down the line.

Actually, I don't see how this test does anything really. I'm sure I'm missing something here though....

cadd · July 3rd, 2015, 02:08 PM

Is your neighbor also your wife or mother? if not, why do you have to obey?

fatspiderman · July 3rd, 2015, 04:52 PM

LOL no but I do like to go full throttle and have noticed it's excessively loud even with my helmet. I mean I set off car alarms if I'm amy where near 12k.

cadd · July 3rd, 2015, 10:43 PM

I mean, if you like the aftermarket exhaust and want to keep that...I think you should keep it! Just keep the revs below 4k when riding in the neighborhood. That's what I do! At 6:45am when I leave the house, I duck walk the bike from the garage to the sidewalk, off the curb and onto the street. I make sure I'm fully geared up and ready to roll before I start her up. Once I start her up, I immediately (within 2 seconds) leave and make sure I'm not going more than 3k RPM at any point until I leave the neighborhood.

This way the bike gets warmed up while at really low rpms and I don't piss anyone off

Ghostt · July 3rd, 2015, 11:31 PM

I agree with @cadd you can be neighborly, and keep your aftermarket exhaust, if you so wish.

But you need to fix that tachometer issue for sure as @InvisiBill has pointed out.

July 3rd, 2015, 11:50 AM	#1
fatspiderman ninjette.org newbie Name: Dan Location: California Join Date: Jun 2015 Motorcycle(s): 2011 250r Posts: 6	Stock exhaust. Shifting time questions. Hey guys, I recently bought my first 250r last year. The previous owner put on a HMF exhaust slipon on it and I've only been riding with it on. It sounds nice but my neighbors have decided enough is enough so I need to put my stock one back on. The issue is that my tachometer recently stopped working. It's not a big deal since I can shift by sound now but I'm sort of screwed when I put my stock back on. Any tips on what I should do? Are there any speedometer guidelines I can try to follow?

July 3rd, 2015, 12:00 PM	#2
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	Hi Dan, the sounds of the rrrrrr's will not change that much by putting on the stock can. You should be able to continue to shift by feel after a ride or two. Just remember, when in doubt, upshift lol. A 250 can nearly be shifted on the 10's on the speedo for a ~~lazy~~ sound respectful ride but trust your gut and all should be well. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

July 3rd, 2015, 12:20 PM	#4
Brother Michigan ninjette.org sage Name: Aaron Location: Winder, GA Join Date: Jun 2012 Motorcycle(s): 2013 Ninja 300 Posts: 718	Lots of bikes don't even come with tachs, so you should be fine just shifting when you feel like it. Bumping into the rev limiter won't hurt anything and I can't imagine anyone actually rides 250s around at low enough RPMs to lug the engine unless they're just totally not paying attention. __________________________________________________ DISCLAIMER: I generally have no idea what I'm talking about.
	1 out of 1 members found this post helpful.

July 3rd, 2015, 12:36 PM	#5
InvisiBill EX500 full of EX250 parts Name: Bill Location: Grand Rapids-ish, MI Join Date: Jul 2012 Motorcycle(s): '18 Ninja 400 • '09 Ninja 500R (selling) • '98 VFR800 (project) • '85 Vulcan VN700 (sold) Posts: A lot. Blog Entries: 1 MOTM - Aug '15	I generally say to fix the root problem rather than adjusting bandaids. The tach signal is a black wire forking off between the igniter and coil. The gauge itself is powered by the brown wire and uses the black/yellow common ground wire. Depending on exactly what's wrong with it, it might not be too hard to fix the tach and make this all irrelevant. Even if you don't specifically need it to shift, I still think it's very handy to know your RPMs. __________________________________________________ * Unregistered, I'm not your mom and I'm not paying for your parts, so do whatever you want with your own bike. *
	1 out of 1 members found this post helpful.

July 3rd, 2015, 01:52 PM	#7
csmith12 The Corner Whisperer Name: Chris (aka Reactor) Location: Northern KY Join Date: May 2011 Motorcycle(s): 2010 250 (track), 1992 250, 2006 R6 (street/track), 2008 R6 (track) Posts: Too much. MOTY 2015, MOTM - Nov '12, Nov '13	Had your front sprocket cover off recently? If so, check to ensure the wires are not pinched. __________________________________________________ Goal: Shake A Million Hands \| Look through the corners \| Track Day Prep \| Closest track? \| The Mid-Ohio School

July 3rd, 2015, 01:50 PM	#6
fatspiderman ninjette.org newbie Name: Dan Location: California Join Date: Jun 2015 Motorcycle(s): 2011 250r Posts: 6	I agree with you. I've got all the fairings off right now trying to figure out if it's a wiring issue or not. I mean, everything else works fine, even the light behind the tach. I even checked to see if the needle was stuck or anything but no go. Any ideas?

July 3rd, 2015, 01:57 PM	#8
fatspiderman ninjette.org newbie Name: Dan Location: California Join Date: Jun 2015 Motorcycle(s): 2011 250r Posts: 6	I followed the service manual instructions. 16-57 disconnect BK lead. reinstall Bk screw. Turn engine on and connect the bk lead to screw to see if the pointer flicks. It did not and recommends replacing the tach unit. But I don't see how this rules out that a wire is pinched somewhere down the line. Actually, I don't see how this test does anything really. I'm sure I'm missing something here though....

July 3rd, 2015, 02:08 PM	#9
cadd cadd cadd cadd Name: Cadd Location: 41°21'13.1"N, 74°41'37.4"W Join Date: Jan 2014 Motorcycle(s): 300 Posts: A lot. MOTM - May '15	Is your neighbor also your wife or mother? if not, why do you have to obey? __________________________________________________ Riding it like I financed it.

July 3rd, 2015, 04:52 PM	#10
fatspiderman ninjette.org newbie Name: Dan Location: California Join Date: Jun 2015 Motorcycle(s): 2011 250r Posts: 6	LOL no but I do like to go full throttle and have noticed it's excessively loud even with my helmet. I mean I set off car alarms if I'm amy where near 12k.

July 3rd, 2015, 10:43 PM	#11
cadd cadd cadd cadd Name: Cadd Location: 41°21'13.1"N, 74°41'37.4"W Join Date: Jan 2014 Motorcycle(s): 300 Posts: A lot. MOTM - May '15	I mean, if you like the aftermarket exhaust and want to keep that...I think you should keep it! Just keep the revs below 4k when riding in the neighborhood. That's what I do! At 6:45am when I leave the house, I duck walk the bike from the garage to the sidewalk, off the curb and onto the street. I make sure I'm fully geared up and ready to roll before I start her up. Once I start her up, I immediately (within 2 seconds) leave and make sure I'm not going more than 3k RPM at any point until I leave the neighborhood. This way the bike gets warmed up while at really low rpms and I don't piss anyone off __________________________________________________ Riding it like I financed it.
	1 out of 1 members found this post helpful.

July 3rd, 2015, 11:31 PM	#12
Ghostt in your machine Name: Scott Location: Summer Shade, Ky. Join Date: Oct 2014 Motorcycle(s): 98 Ninja 250/F12 aka ZX-2R "SERENITY", 91 Ninja 500/A5 aka ZX-5R "Phoenix", 84 Honda GL1200A "SIREN" Posts: A lot. Blog Entries: 25 MOTM - Jun '17, May '16, Mar '15	I agree with @cadd you can be neighborly, and keep your aftermarket exhaust, if you so wish. But you need to fix that tachometer issue for sure as @InvisiBill has pointed out. __________________________________________________ *violente et ignorantia* ZX-2R BLOG *Twitter and Instagram = Ghostt_Scott* *I'm not here to change your mind, just to inform.*

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