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post #1 of 18 Old 02-22-2012, 11:41 AM Thread Starter
Gettin Muddy
 
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Starter gear problems

I am about to relace my second one now... my question is does anyone make a stronger one or is there something I need to do to keep from busting these?

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DSC stg 1 840 11.5:1 pistons
VFJ stg 3 clutch
VFJ injectors
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Last edited by biggun132; 02-22-2012 at 03:08 PM.
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post #2 of 18 Old 02-22-2012, 03:12 PM
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I don't get all these post about the starter gears breaking ????? Is it that people are pushing the start button while the engine is running and breaking gears that way ? Just wondering...

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post #3 of 18 Old 02-22-2012, 04:37 PM Thread Starter
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No mine have broke starting the bike. Usually caused by a low battery and the engine kicks back.

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DSC stg 1 840 11.5:1 pistons
VFJ stg 3 clutch
VFJ injectors
3"intake
29.5 OL's on STI HD3
custom tuned MSD

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post #4 of 18 Old 02-22-2012, 06:59 PM
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My arctic cat had the same issue with kickback. You're lucky it's destroying starters instead of your engine case.

Mine took out the stator side cover and damaged the engine case however I was able to salvage it thanks to a buddy with a machine shop.

Required pulling the engine and some downtime.

For my engine which is not the kawi v twin there's a starter clutch that can be installed and eliminate the kickback carnage. I don't know if there's a similar fix but if you're getting lots of kickback the starter is the absolute cheapest thing that can be destroyed when the engine kicks back!


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post #5 of 18 Old 02-22-2012, 09:13 PM
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Muzzy makes a HD one but you can also get one from a 2012 I'm pretty sure they are the same they are way beefier my buddy just bought one. Wish they had them the year I went through 2 it's also cause by starting when it's cold especially if you have a cdi that advances timing


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post #6 of 18 Old 02-23-2012, 02:51 AM
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I've been told the Prairies have a stronger starter gear I don't know why the smaller motor would but that's just what I've been told.

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post #7 of 18 Old 02-23-2012, 05:30 AM Thread Starter
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I'm gonna try this one and take out some timing on my msd and see if that helps any. If you change to a heavier/beefier gear would that cause something else to bust?

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DSC stg 1 840 11.5:1 pistons
VFJ stg 3 clutch
VFJ injectors
3"intake
29.5 OL's on STI HD3
custom tuned MSD

Built by FATBOYZ CUSTOMZ
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post #8 of 18 Old 02-23-2012, 05:42 AM
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I think the gears are weak jmo but Kawasaki knows it that's why the 2012 have a stronger gear


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post #9 of 18 Old 02-23-2012, 06:28 AM
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i found if you hold ur starter button down longer after it starts will help also. replaced my gear a couple months ago , have a dynatek which does advance timing ,cold start is the major culprit. u can hold starter button after it starts foe a second or 2 want hurt it.

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post #10 of 18 Old 02-23-2012, 06:38 AM
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I have found the heavier Prairie 650/700 fly wheel to help on the built motors,I broke a few the switched my 1000 to the prairie fly wheel and no issues yet,need fly wheel and the prairie pickup coil mount,it moves the pickup coil out some to clear the heavier fly wheel.I have the starter gear and limiter gears and also have some flywheels,not sure about the pickup mounts would need to check.would like to add you cant do this on the FI bikes but you can use the prairie starter gear and limiter gear on FI just not the flywheel mod

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post #11 of 18 Old 02-24-2012, 04:44 PM
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Mine broke from 'kick-back'. Was running 93 octane, (thought I could go faster...lol). Now I just stay w/87.

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post #12 of 18 Old 02-24-2012, 07:10 PM
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biggun u jus gt to much hp in that fatboyz bike. i jus dnt what it is about them 2 bikes that wer built in that shop bt they jus flat out scoot. ol blacky ready to rip a hole open.

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post #13 of 18 Old 02-25-2012, 07:35 AM Thread Starter
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you got that right Ethan!

DSC stg 1 840 11.5:1 pistons
VFJ stg 3 clutch
VFJ injectors
3"intake
29.5 OL's on STI HD3
custom tuned MSD

Built by FATBOYZ CUSTOMZ
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post #14 of 18 Old 02-25-2012, 08:44 PM
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I had this happen 2 times years back. I was running FCR's and 13 to 1 compression. Didnt think it would be a problem with the lower comp. and stock carbs.
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post #15 of 18 Old 02-26-2012, 05:40 AM
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I think it has alot to do with the tune on the motors and the timing,it plays a factor.

2005 Brute Force 650
SRA Drag Bike Kawie Green
Stretched & Slammed
FST 840!!!!

2012 Kawie Green
Teryx Sport 750!!!!
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