Just bought 05 with big bore kit, problems already... - Page 2 - Suzuki LT-R450 Forum :: LTR450HQ.com
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post #11 of 16 (permalink) Old 04-30-2018, 07:22 PM Thread Starter
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I've heard of a lot of unsuccessful attempts to clean FPR's.
Ok. But would the bad fpr can cause my symtoms? It only runs bad after riding for a bit.
If it's bypassing too much fuel and allowing the pressure to drop below spec, it's possible. You should probably verify the psi when it's acting up to see.
I really appreciate your help. At this point, regardless the pressure is too high so I am going to change it out. I will report back next time I taker her out. I will make sure I bring the fuel guage with me to measure when its acting up.
Thanks
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post #12 of 16 (permalink) Old 05-02-2018, 04:13 PM Thread Starter
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Just picked up the FPR from dealership who price matched online price!!! Going to put it in and test pressure. Wish me luck!
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post #13 of 16 (permalink) Old 05-06-2018, 08:34 AM Thread Starter
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I am happy to report that my problem has been solved.

Here is the weird thing that happened. After I finished with all the repairs, the bike fired up and took it out for a quick spin. It was running fine for like 2 mins, then the bike just dies and wouldn't crank or prime. So I checked the battery and it was dead. I charged it over night and it wouldn't charge. I replaced the battery and started right up. I didn't know batteries dies instantly like that.
Here are the things that I did in combination. I don't know which one exactly solved the problem, but i think the fpr was the culprit.

Replaced FRP now reading 42 PSI.
Bypassed the Swirl Filter
Installed new Glass inline 100micron fuel filter
Replaced spart plug with new E style spark plug.

After all repairs, put new battery in it.

Took it to El MIrage yesterday and ran it for 3 hours with no problems what so ever. I never realized my quad had this much power LOL.

Another note, I had 5th gear pegged and all I could get was 65MPH using my gps. Is this normal with my mods? Thank you for all of your help!

Kalvin
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post #14 of 16 (permalink) Old 05-07-2018, 06:16 AM
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With my high compression set up with OEM bore and stroke ran 77.2 MPH. I would guess my BB setup should run at least 80 MPH.

https://www.ltr450hq.com/forums/engin...alculator.html

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We started hitting the teens but no white stuff yet.
2006 LTR 535-R, Go Big or Go Home.


Her name is Bruce

https://www.ltr450hq.com/forums/gener...ce-manual.html
https://onedrive.live.com/?authkey=%...%21147&o=OneUp

LTR450 manual ^ ^ ^ ^ ^ ^
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post #15 of 16 (permalink) Old 05-07-2018, 07:29 AM Thread Starter
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With my high compression set up with OEM bore and stroke ran 77.2 MPH. I would guess my BB setup should run at least 80 MPH.

https://www.ltr450hq.com/forums/engin...alculator.html
Did some digging around, I guess BB will get you to top speed faster, but won't really make the bike get higher top speed, unless switch gearing. I am ok with 65.
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post #16 of 16 (permalink) Old 05-07-2018, 09:55 AM
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That's why I posted the gear ratio calculator.

Im running a 3.0 gear ration on 20" tires. It is geared lower than most.

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Originally Posted by hinkle View Post
We started hitting the teens but no white stuff yet.
2006 LTR 535-R, Go Big or Go Home.


Her name is Bruce

https://www.ltr450hq.com/forums/gener...ce-manual.html
https://onedrive.live.com/?authkey=%...%21147&o=OneUp

LTR450 manual ^ ^ ^ ^ ^ ^
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