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Unusual Button On drz 400 sm Help please

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zad0107
L Plate Warrior



Joined: 21 Dec 2009
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PostPosted: 09:35 - 21 Dec 2009    Post subject: Unusual Button On drz 400 sm Help please Reply with quote
hi there folks,
i recently bought a drz 400sm from a dealer. i noticed that the bike has an addittional button fitted to the right hand handlebar. this button is connected to the carb via a piece of clear tubing. when pressed there is a very quiet hiss of air, but it doesnt seem to do anything to engine revs etc when the bike is running. i have included pics...
Has anyone seen such a button b4 and what is its purpose.. i think it may be somw sort of hot start button but not sure.. the bike is completely standard other than this i think and has only covered 1,800 miles. its an 06 bike.
answers on a postcard please.....
Regards Daz
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The Shaggy D.A.
Super Spammer



Joined: 12 Sep 2008
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PostPosted: 11:46 - 21 Dec 2009    Post subject: Re: Unusual Button On drz 400 sm Help please Reply with quote
zad0107 wrote:
i have included pics...


Oh no you haven't...

Smile
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zad0107
L Plate Warrior



Joined: 21 Dec 2009
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PostPosted: 12:12 - 22 Dec 2009    Post subject: Reply with quote
Sorted it . it is a hot start button.
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MattHirst
World Chat Champion



Joined: 25 Jun 2006
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PostPosted: 12:53 - 22 Dec 2009    Post subject: Reply with quote
I can't imagine it is, the DRZ has an auto de-comp. Thus rendering a seperate hot start useless.

Never a button operated hot start either, generally they are just like a mini clutch lever adjacent to the clutch lever.
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ben_wheely
Trackday Trickster



Joined: 03 Apr 2008
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PostPosted: 15:24 - 22 Dec 2009    Post subject: Reply with quote
MattHirst wrote:

Never a button operated hot start either, generally they are just like a mini clutch lever adjacent to the clutch lever.


I have the mini clutch lever type, but the button type can be bought. Here's one off racespec.com for a Yamaha YZ :

https://img31.imageshack.us/img31/7153/thotstart1.jpg
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Feasty
World Chat Champion



Joined: 01 Nov 2006
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PostPosted: 15:30 - 22 Dec 2009    Post subject: Reply with quote
A 'Hot Start Button'... Shocked would anyone care to elaborate please!? Laughing
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zad0107
L Plate Warrior



Joined: 21 Dec 2009
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PostPosted: 15:39 - 22 Dec 2009    Post subject: Reply with quote
Hi matt. That is the exact same button i have. Is this a hot start ? As i suspect.
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silky666
Captain Rulebook



Joined: 28 Aug 2006
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PostPosted: 16:39 - 22 Dec 2009    Post subject: Reply with quote
beanfeast wrote:
A 'Hot Start Button'... Shocked would anyone care to elaborate please!? Laughing

A 'button' that usually resembles the old fashioned choke pulls.
Found on big 4 strokes ... usually off road.

Pulling the hot start sends a leaner fuel/air mix .... as it can be a bit of a bit*h to start a big single when hot. (ie: when you have just come off, half way up a hill, and just want to get going again Smile )

note: choke (which you use when the bike is cold) gives the opposite .. a rich mixture.
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Feasty
World Chat Champion



Joined: 01 Nov 2006
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PostPosted: 09:14 - 23 Dec 2009    Post subject: Reply with quote
silky666 wrote:
A 'button' that usually resembles the old fashioned choke pulls.
Found on big 4 strokes ... usually off road.

Pulling the hot start sends a leaner fuel/air mix .... as it can be a bit of a bit*h to start a big single when hot. (ie: when you have just come off, half way up a hill, and just want to get going again Smile )

note: choke (which you use when the bike is cold) gives the opposite .. a rich mixture.


Thanks silky666, I understand now - and what a good idea too! Laughing Thumbs Up
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Previous: Aprilia Habana Retro 50cc (beauty), Yamaha SR125 (fell apart), Honda XR125 (nippy little commuter), Honda SLR650 (Geewhizz), Yamaha Diversion 900S (Smoooooth) written off courtesy of a stupid escaped horse.
(7 year gap), BMW F650 (Relaxing ride). Aprilia Caponord ETV1000 (Big and bold). Yamaha FZS600 (got me in trouble too quick!).
Current: Yamaha TDM 900 (Comfy, light but big, power when needed).
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Old Thread Alert!

The last post was made 16 years, 265 days ago. Instead of replying here, would creating a new thread be more useful?
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