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gs550t with likely dead starter - preferred replacement?

[TABLE="class: content, width: 240"]
[TR]
[TD="colspan: 2"]Repair Kit - Denso

[TD="class: multidispItems, align: right"]Type:[/TD]
[TD="align: left"]New[/TD]

[TD="class: multidispItems, align: right"]Replaces:[/TD]
[TD="width: 150, align: left"]Denso[/TD]

[TD="class: multidispItems, align: right"]Stockers #:[/TD]
[TD="width: 150, align: left"]RBK-4S[/TD]

[TD="class: multidispItems, align: right"]Retail Price: [/TD]
[TD="class: contbold, width: 150"]$44.95[/TD]

[TD="class: multidispItems, align: right"]Your Price: [/TD]
[TD="class: contboldRd, width: 150"]$29.95[/TD]

[TD="colspan: 2, align: left"] [/TD]

[TD="colspan: 2"] [/TD]
[/TD]
[TD="class: content"]Repair Kit
For: 2-Brush Denso Starters
[/TD]
[/TR]
[TR]
[TD][/TD]
[TD][TABLE="class: content, width: 240"]
[TR]
[TD="colspan: 2"]Brush Holder - Denso[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Type:[/TD]
[TD="align: left"]New[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Replaces:[/TD]
[TD="width: 150, align: left"]Denso[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Stockers #:[/TD]
[TD="width: 150, align: left"]ND-L[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Retail Price: [/TD]
[TD="class: contbold, width: 150"]$32.95[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Your Price: [/TD]
[TD="class: contboldRd, width: 150"]$21.95[/TD]
[/TR]
[TR]
[TD="colspan: 2, align: left"][/TD]
[/TR]
[/TABLE]
[/TD]
[TD="class: content"]Brush Holder Assy. W/Brushes
Used In: 2-Brush Denso Small Engine Starters
Repair parts :
Brushes only use B-4
[/TD]
[/TR]
[TR]
[TD][/TD]
[TD][TABLE="class: content, width: 240"]
[TR]
[TD="colspan: 2"]Brush Set - Denso[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Type:[/TD]
[TD="align: left"]New[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Replaces:[/TD]
[TD="width: 150, align: left"]Denso[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Stockers #:[/TD]
[TD="width: 150, align: left"]B-4[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Retail Price: [/TD]
[TD="class: contbold, width: 150"]$10.45[/TD]
[/TR]
[TR]
[TD="class: multidispItems, align: right"]Your Price: [/TD]
[TD="class: contboldRd, width: 150"]$6.95[/TD]
[/TR]
[TR]
[TD="colspan: 2, align: left"][/TD]
[/TR]
[/TABLE]
[/TD]
[TD="class: content"]Brush Set for 2-brush Denso small-engine starters
- Click More Info to view applicationsFits:
Denso Repair Parts
Specifications:[TABLE="class: specTable, width: 649"]
[TR]
[TD]• Lead Length:[/TD]
[TD]80mm[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]• Length:[/TD]
[TD]13mm[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]• Thickness:[/TD]
[TD]5.8mm[/TD]
[TD][/TD]
[/TR]
[TR]
[TD]• Width:[/TD]
[TD]8.9mm[/TD]
[TD][/TD]
[/TR]
[/TABLE]
[/TD]
[/TR]
[/TABLE]
 
As I understand (I don’t, really), earlier Triumph models were positive ground. Maybe I misunderstand, that’s highly likely. Or maybe the model this came from has one less gear in the connection to the starter clutch.
 
I ordered the repair kit from stockers, only $8 more than the brush plate alone and provides the o-rings, bearings, and oil seals to freshen up the whole starter. Plus my solenoid was shot (had to jump across the terminals with a screw driver), so I needed one of those as well.
 
dorkburger said:
Are you sure that the solenoid is bad? Is it getting power when the starter button is pushed?
Click to expand...
Didn't check that. It had been working recently, with an audible "thunk" whenever the starter button was pushed. The bike has been on the lift in my garage for far too long now, so I don't see how the starter button could suddenly fail. I'll check that, but the solenoid has already been ordered.
 
sacruickshank said:
. . . . . . I don't see how the starter button could suddenly fail. . . . . . . .
Click to expand...
Other possible problem of why the solenoid doesnt "thunk" is the clutch lever switch (called "interlock" on schematics), or the solenoid not being grounded.
 
Redman said:
Other possible problem of why the solenoid doesnt "thunk" is the clutch lever switch (called "interlock" on schematics), or the solenoid not being grounded.
Click to expand...
Mea culpa ... Yep, the real reason the solenoid wasn't thunking was grounding. The various ground wires were still loose from when I moved the airbox to remove the carbs. Doh!

Now I have a spare solenoid.

BTW, the starter kit listed earlier in the thread was good, but there was a gap between the positive pole bolt and the hole in the starter's housing. On the OEM unit there is a plastic sleeve that fills the gaps, but this was not part of the replacement and I couldn't re-use the black plastic plate from the OEM unit since the shape of the brush insert was different. I know that's vague, but I didn't take a sample pic and it's installed now.

With the new&correct polarity brushes installed, the starter now cranks the pistons as it should. Now to re-install the carbs and hopefully we'll get a valid test start today
 
Last edited:
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