Won't start hot. - Honda TRX Forums: Honda TRX 450R Forum

Reply
 
LinkBack Thread Tools
Old 08-13-2010, 10:43 PM   #1 (permalink)
TRX90 Rider
 
NWThumper's Avatar
 
Join Date: Aug 2010
Posts: 3
Default Won't start hot.

I recently bought another 06 ER (have an 05 and another 06). Starts a little hard when cold then runs great. When hot it absolutely refuses to start on the starter but will start immediately on compression (whether a hill, a push, or a tow). Let it sit and cool for 10 minutes and it starts.
Yoshi full exhaust, hot cam stage 1, open airbox, k&n filter, 162 main, 42 slow, 75 start jet, stock needle.
Starter spins up just like my other 06 (had it out and cleaned brushes and armature). Starter clutch is good. good battery.
Had carb out... cleaned and adjusted... put slow jet back to stock.
Had valves adjusted.
Any ideas?

Last edited by NWThumper; 08-13-2010 at 10:57 PM.
NWThumper is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-14-2010, 09:13 AM   #2 (permalink)
450R Veteran
 
450RRR's Avatar
 
Join Date: Oct 2005
Location: Central Cali
Posts: 10,711
Default

you hit most the high points..... most common issue with the E machines not starting HOT is the pilot circuit... too many people running 45/48 slow jets which really effect the starting because of no HOT START feature... but if your running the stock #42, stock needle, it should start right up.... turn up the idle speed to help and check your decomp settings... especially if you just performed a valve job.... set to 60psi.. also RE-check your valve adjustment if your not 100% sure the person adjusted them correctly for ya.....

jmho....g
__________________
**06 450ER**... #3 (Dale lives on)

86TRX250R (mostly stock 66mm bore x 72mm stroke) **for sale**
86TRX250R (ESR310 72.5mm bore x 72mm stroke '298cc' fully modded) **SOLD**
88TRX250R (ESR330 77.5mm bore x 74mm stroker '345cc' fully modded)

HRC kit (all but gone)
Hot Cams stage III
Okie porting w/ATP CV4 springs (36mm Ti/31mm)
Venom/KBR N2O Porting w/KW springs (37mm/31mm)
Venom/KBR 487 100mm 14.25:1 piston
Cold Fusion Nitrous**
Venom 'QP' pipe
ESR Pro Series pipe
ESR modded intake w/RAT stack
42mm Taper-Bored FCR
Direct Drive clutch lockout, CR500 springs
GT Thunder-Link w/Durablue Lowering Link
Durablue Anti-Sway Bar
Modded shock mounts
Rage Modded Tranny

Jetting/Carb: #168, #45slow, NGPR needle 3rd clip, #55 Leakjet, Pilot 2 turns out.
Jetting/N2O: 22N/21F (22hp)

*STU Comp Cut 21x12x8 (6) paddle 'Padla Brats' on Douglas Blue label 8x8.....

Thanx to: Venom/KBR (Mixxer/Kam), Rage ATV (Dee), Sredum (Chris), and many ORG members
450RRR is offline   Reply With Quote
Old 08-14-2010, 01:54 PM   #3 (permalink)
TRX90 Rider
 
NWThumper's Avatar
 
Join Date: Aug 2010
Posts: 3
Default Mystery continues

Thanks for the reply.
Yes, setting the idle up keeps my son from killing it too often but doesn't help the starting hot.
I will check the valves myself... and look for anything odd about that hot cam (beginning to wonder about the first owner).
I don't understand the 60psi on the decompressor... I thought that was a clearance setting, like on the valves.
Thanks again.
NWThumper is offline   Reply With Quote
Old 08-14-2010, 05:34 PM   #4 (permalink)
TRX90 Rider
 
NWThumper's Avatar
 
Join Date: Aug 2010
Posts: 3
Default Some progress... Edelbrock???

I switched the carb with the one from my other 06 and it ran and started easily hot or cold. What a relief to eliminate all those other possibilities... like ICM, stator, coil, sensors, all the rest of the ignition and wiring.
Now... Last year I did what I could in my shop, to the bad carb. So, do I pay a Honda shop to do a complete rebuild or buy a new edelbrock??
Anyone have an edelbrock in their 450r?

Thanks for your attention.
NWThumper is offline   Reply With Quote
Old 08-15-2010, 04:09 PM   #5 (permalink)
450R Rider
 
oneill_1952's Avatar
 
Join Date: Apr 2008
Location: On
Posts: 1,225
Send a message via MSN to oneill_1952
Default

Those edelbrock carbs are the worst thing you can do to your 450r...the stock 06+ 450r uses a Keihin FCR which is the best carb money can buy, IMO i would sent your carb out to get totally rebuilt...like racers edge in AZ is probally your best choice..

maybe even take it appart yourself if you feel confident.
__________________
2006 TRX450ER
Spending money I don't have, on a quad I barely ride, to impress people I don't even know...
oneill_1952 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -4. The time now is 10:09 PM.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.6.0