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Wayne S.
Wayne S., Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 1112
Experience:  Experienced and Licensed Motorcycle Mechanic - all sizes and brands welcome.
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i have a 2000 polaris 325 trail boss quad and i need to know

Customer Question

i have a 2000 polaris 325 trail boss quad and i need to know what the standard messurement (size) for the crankshaft and conecting rod is so i can tell the machine shop and they can rectify it and so i know what size berings i need to get i bought a manual but it didnt tell me that info i guess it is only a service manual so if you can help me with that info i will apreciated thanks
Submitted: 3 years ago.
Category: Motorcycle
Expert:  Jeff Policky replied 3 years ago.

Connecting rod big end side clearance

Std .0039-.0256″ (.1-.65 mm)

Limit .0315″ (.80 mm)

Connecting rod big end radial clearance

Std .0004-.0015″ (.011-.038 mm)

Limit .0020″ (.05 mm)

 

 

Customer: replied 3 years ago.
hi, i dont think that is the answer i was expecting you are giving me clearences on conecting rod big end clearence and connecting rod radial clearernce,what i need is the standard size on the crankshaft and conecting rod so i know what over size bering i need to buy and how much the machine shop will remove on the crankshaft and rod side
Expert:  Jeff Policky replied 3 years ago.

sorry about that, the Polaris service manual does not give that spec. their manuals are very short on info.

 

I will opt out so another expert can help you



Edited by Jeff Policky on 2/4/2011 at 3:11 AM EST
Customer: replied 3 years ago.
Relist: Inaccurate answer.
the expert jeff policky say he will opt out so another expert can help me because he didnt have the right answer so i will want another expert to answer my question
Expert:  Jeff Policky replied 3 years ago.
Hello again by relisting you have knock off my opt out. Now it looks as if I am still working with you. so I will opt out again so the other experts see that I have opted out it may be until tomorrow that some will get back to you
Customer: replied 3 years ago.
ok i am new to this site and i wasnt shure what i needed to do to get the right answer but thanks anyway and i will wait for an answer
Expert:  Jeff Policky replied 3 years ago.
ok, if you have any questions in the mean time I will be glad to answer them for you
Expert:  Wayne S. replied 3 years ago.


Hello,

Here is all the info I could dig up for you:

Polaris 325 Engine:

Crank Journal OD standard 1.6555" (42.05 mm) -- 1.6560"

Connecting Rod: Polaris #3087016
Small end ID = 17.5 mm
Big end ID = 45 mm or 1.7716"
Bearing Clearance: .0007" - .0021" limit .0026

Polaris #3086427 Bearing Shell STD Yellow.

Red = thinnest shell
Yellow
Blue
Green = thickest shell
.005 mm (about .002") increments

Hope this helps you get the engine going again.

---------------------------------
Wayne S., Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 1112
Experience: Experienced and Licensed Motorcycle Mechanic - all sizes and brands welcome.
Wayne S. and 2 other Motorcycle Specialists are ready to help you

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