Governor or limiter on 07 c50?? - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
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post #1 of 13 (permalink) Old 07-12-2014, 08:33 AM Thread Starter
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Governor or limiter on 07 c50??

This is something that has been bugging me for a while. When I first got my 2007 c50, I rode with a friend who had a 450cc bike. He was capable of pulling away from me from a dead stop and at speed when we both opened up our bikes. I figured well, my bike weighs much more stock, I have more accessories so there's more weight as well and there's nothing to his bike. Well I recently started riding with another buddy who just got his 250cc bobber on the road. I noticed the same thing. My 805cc fuel injected boulevard has having trouble keeping pace with a 250cc carb'd honda. Seriously?? What's going on? Why does it seem like 75% throttle= 75% acceleration BUT 100% throttle=75% acceleration also?? Is there a cap or limit on the torque these things put out? Some sort of poorly thought of safety feature? Or is this motor just really weak? Am I missing something here? If there's some sort of governor, is it possible to remove it or to increase acceleration off the line in our bikes? Thanks for reading and thanks in advance for any thoughts on it. As always, ride safe out there.

Last edited by ME2k; 07-12-2014 at 09:05 AM.
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post #2 of 13 (permalink) Old 07-12-2014, 08:53 AM
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What you described does not seem normal, sounds like you're bike is not running right, somebody will be along soon to confirm this

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post #3 of 13 (permalink) Old 07-12-2014, 09:53 AM
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Have you ever ridden a 250 Ninja? They will eat any mid size cruiser. The 650 sport bikes are lightning fast compared to an 1800 cruiser. Are you sure you're not just thinking that "size" should win? The C50 isn't a drag racer by any means.

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post #4 of 13 (permalink) Old 07-12-2014, 10:07 AM Thread Starter
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Quote:
Originally Posted by Duffy View Post
Have you ever ridden a 250 Ninja? They will eat any mid size cruiser. The 650 sport bikes are lightning fast compared to an 1800 cruiser. Are you sure you're not just thinking that "size" should win? The C50 isn't a drag racer by any means.
A 1985 Kawasaki Ltd 454 isn't quite a drag bike either. But one would hope a c50 can handle it.
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post #5 of 13 (permalink) Old 07-12-2014, 11:50 AM
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You have a problem if there is no difference between 3/4 throttle and WOT.
and it's not a rev limiter problem.

What mods have you done. I once took the baffles out of my dirt bike and it could barely make it around the block killed all the power. I immediately replaced the baffle.

You also might have a clogged air filter. Pull the cover and check it. Riding in dusty conditions or swarms of insect bodies can really kill an air filter quickly.

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post #6 of 13 (permalink) Old 07-12-2014, 11:55 AM
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The 450 I wouldn't have been too surprised at, but the 250 is suspect. The C50 has a drive shaft, which is great for maintenance and reliability, but kills your torque, so most anything with a chain or belt of equal size will blow you away. There is a rev limiter, I've bounced off of it a number of times, but it doesn't kick in until pretty high RPMs. Other than that, there shouldn't be a governor.

How old is your clutch? I just changed mine, and I can tell you that after changing it I realized that it's been slipping for quite a while without me noticing. I've got more take off power and the bike is actually running lower RPMs at highway speed.

Also, clogged fuel injectors could be an issue. After that I'd look at the throttle cable. Adjust it according to the manual and if it's old I might even replace it. As they age you can end up with some stretch that'll cause them to not pull as much toward WOT.

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post #7 of 13 (permalink) Old 07-12-2014, 09:30 PM Thread Starter
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I replaced the air filter at the beginning of the season. Clogged fuel injectors would mean rough idle correct? The throttle cable may possibly be the culprit. I never thought of the stretching possibility but that's a valid point. They're relatively cheap, I'll pick one up soon and see. Thanks!
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post #8 of 13 (permalink) Old 07-13-2014, 02:50 AM
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I may be wrong but it sounds like your riding it like a V Twin with heaps of grunt.....

I read somewhere these engines are based on a Suzuki V Twin sports engine. You need to use the revs and let the engine wind out. I assume the 07 has a rev limiter on it like the later models, hold it in gear until it splutters it will give you an idea of the limits.

I found out the first time I tried to pass traffic at 60mph + by just rolling on the throttle in top gear, nothing......when I dropped it down a gear it took off.

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post #9 of 13 (permalink) Old 07-13-2014, 02:57 AM
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Quote:
Originally Posted by OzriderC50T View Post
I may be wrong but it sounds like your riding it like a V Twin with heaps of grunt.....

I read somewhere these engines are based on a Suzuki V Twin sports engine. You need to use the revs and let the engine wind out. I assume the 07 has a rev limiter on it like the later models, hold it in gear until it splutters it will give you an idea of the limits.

I found out the first time I tried to pass traffic at 60mph + by just rolling on the throttle in top gear, nothing......when I dropped it down a gear it took off.
I've got an '06, and trust me, it has a rev limiter, we're good friends now.

You really don't want to bounce off the limiter because you're actually getting out of the power band at that point. You want to shift just before you hit it for maximum power. But yeah, don't be afraid to wind out the engine, it can take it. Suzuki put in the rev limiter and set it to trigger before you get the RPMs high enough to cause damage. Trust the engineers.

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post #10 of 13 (permalink) Old 07-13-2014, 11:17 AM
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Operator error?

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