SuzukiSavage.com - Bike bogs at 90% throttle. Among other things

SomeENG

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Re: Bike bogs at 90% throttle. Among other things
Reply #30 - 08/01/19 at 09:30:14

While I'm waiting for jets..

My electric start has been troublesome.

I'm on my 2nd battery, the first had a hole worn in the bottom from a bolthead that sticks up into the battery compartment.

I got another battery and put several layers of cardboard under it to prevent the problem.

I previously (with a charged battery) was able to start the bike 12-15 times before the battery was too weak to start.

I thought "no big deal" and got a charge controller and solar panel to keep it topped off.

This worked for about 6-7 months.

Within the past couple of weeks something has gone wrong.
The battery is always "too weak" to start the bike, even after using a slow charger plugged into the wall.

I had stopped at the hardware store and as I was push starting the bike to leave
(it was being difficult, normally taking 1-2 tries but at the time 5 and counting)
when someone in a minivan offered to jump me.

I graciously accepted, as it was about 97 degrees and I was wearing protection.

With his engine off, we hooked up the cables and the starter clunked once when I pushed the button.

I tried the button four times before the starter engaged and the bike started right up.

Just a week previous I had blown the fuses somehow between when I parked it and when I went to push start it.

I have my theory that it could be a bare wire grounding somewhere, stealing my voltage when I need it?

I don't know.. As long as it's getting me to work and back.

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verslagen1

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Re: Bike bogs at 90% throttle. Among other things
Reply #31 - 08/01/19 at 09:45:04

In addition to checking all the other stuff... there's a little black box above the carb that's the decomp controller.
It times the decomp actuation and when the starter can engage.
It draws power all the time... something like 50ma. typical microprocessor draw.
But it can go bad and draw more or try to start the bike on it's own.
Very disconcerting finding your bike splayed in front of a wall with the starter running.

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Versey's Place
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batman

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Re: Bike bogs at 90% throttle. Among other things
Reply #32 - 08/01/19 at 11:19:20

As Vercy said the decomp . relay is always hot ,and draws a slight flow of power . but if you pull it out of the connecter ,there should be no flow from the battery, so if you have a voltmeter , you can disconnect the battery positive( being very careful no to touch it or the wrench or screwdriver your using to anything metal -grounding it) and place the meter between the cable and battery ,if you see any flow you have a ground , no flow would be normal . but you should then test your alternator and reg./rectifier.
You should also check the ground cable at the motor ,it's the two wires (one large -the ground from the battery and the smaller ground wire from the harness ) under the casing bolt on the right side of the bike ,about 2"above the oil level site glass and back in about the same distance. check for tightness and any corrosion which might have formed( the wire end is copper , the bolt is steel and the case alum) . If the connection isn't clean it would affect both the starter motor and battery charging -which seems to be both your problems)
It could even make the bike "bog" at higher throttle settings , where your spark coil needs to discharge at higher voltages and the plug 's ground also flows thru the motor cases like the starter.

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« Last Edit: 08/01/19 at 16:35:59 by batman »

my old work mates called me MacGyver

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SomeENG

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Re: Bike bogs at 90% throttle. Among other things
Reply #33 - 08/02/19 at 09:32:54

Ill check my grounding points and get a voltmeter if they (grounding points) look good.

I've been looking for a reason to own one anyways.

Here's what I've found out.

The ground wire seemed slightly ratty, maybe 80% intact wires.
I replaced it anyways, with a modern 6 gauge ground wire.

The grounding point was on the left side between the starter and the battery box.

I am using a shorter battery than stock, I think the positive terminal has been touching the battery box (which is solid metal) and has damaged the battery.

I try starting the bike and it either clicks once or turns over very slowly.

When I hook up my charger after several attempts to start (max 10 amp. Amperage drops as the battery is fully charged. It has an amperage gauge) the gauge shows 6 amps and within two minutes drops to 3 amps, then just above zero.

So I'm guessing my battery is toast.

The charger is old though, probably 40 years. It's all metal and has a switch for 6 and 12 volt.
Soo maybe it's a problem with the charger.

I also figured out that the rattling was coming from the gas cap.
I cut out a circle of foam to make a 1/4" foam bushing. Fixed.

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« Last Edit: 08/04/19 at 16:07:49 by SomeENG »

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SomeENG

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Re: Bike bogs at 90% throttle. Among other things
Reply #34 - 08/16/19 at 19:52:51

Finally got time to change the jet.

https://www.walmart.com/ip/Mikuni-019-131-Main-Jet-155/185473849

This is what I ordered.

https://www.amazon.com/20pcs-Carburetor-Main-Pilot-Keihin/dp/B07PGKW66C/ref=a...

The 155 on this page is what I got.

The jet is physically too long to fit the bowl, and the hole is only about half the diameter.

Can someone please just link me something to buy?

My bowl gasket had previously cracked in half, but was holding on.
Today when I removed the bowl I somehow lost half my gasket.

How is rtv black at holding in gas?

Also my gas tank separated from the bottom mounting tab.

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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28780 L.A. California Gender:	Re: Bike bogs at 90% throttle. Among other things Reply #35 - 08/16/19 at 22:03:51 http://suzukisavage.com/cgi-bin/YaBB.pl?num=1336741909
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batman Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 3806 osceola new york Gender:	Re: Bike bogs at 90% throttle. Among other things Reply #36 - 08/17/19 at 07:16:57 The jets you ordered are for a Keihin carb ,they wont fit or work, you have a Mikuni- BS40SS carb . I'd follow Verslagen's advice above and order Lancer's kit it has everything you need , Look in the market place.
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SomeENG YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 23	Re: Bike bogs at 90% throttle. Among other things Reply #37 - 08/17/19 at 07:59:58 Yeah. The title says mikuni and the picture matched my current jet so I just ordered it. But checking the description says it's for keihin carb. Pretty misleading really.
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Junker YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 43	Re: Bike bogs at 90% throttle. Among other things Reply #38 - 08/18/19 at 13:53:56 When you say a long HD muffler, do you mean something of a touring model like this? http://suzukisavage.com/yabb2.2/Attachments/cuban_1.jpg
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SomeENG YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 23	Re: Bike bogs at 90% throttle. Among other things Reply #39 - 08/18/19 at 17:12:57 https://www.picclickimg.com/d/l400/pict/113676132852_/stock-slip-on-mufflers-... Like these.
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SomeENG YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 23	Re: Bike bogs at 90% throttle. Among other things Reply #40 - 08/19/19 at 05:23:09 Also my drive belt snapped this morning.
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Junker YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 43	Re: Bike bogs at 90% throttle. Among other things Reply #41 - 08/19/19 at 10:22:54 Duuudddeee .... That blows. I've recently run into a similar bogging issue which is currently been discussed on this thread ... http://suzukisavage.com/cgi-bin/YaBB.pl?num=1564463530 Might be worth your time to have a look; it has been very helpful.
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justin_o_guy2

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Re: Bike bogs at 90% throttle. Among other things
Reply #42 - 08/19/19 at 12:53:29

SomeENG wrote on 08/19/19 at 05:23:09:

Also my drive belt snapped this morning.

They are Tough
They have a good record
A couple have died for no understood reason, but, generally they don't die
Without a reason..
So, can you see anything that would explain why?
How tight was it?
On level ground or some kinda bump?

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SomeENG YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 23	Re: Bike bogs at 90% throttle. Among other things Reply #43 - 08/20/19 at 04:27:44 I think it may have been a bit too tight, I could almost turn it 90 degrees with ease, but not quite. And yes, it snapped when I was backing out of a steep driveway onto the street.
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SomeENG YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 23	Re: Bike bogs at 90% throttle. Among other things Reply #44 - 08/23/19 at 05:41:37 Replaced the belt. What were they thinking? Why doesn't the belt just go over the front pully?
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