Planet Minis

boost13 · 03-23-2007, 05:30 AM

I put the GYTR kit into my kids TTR50 last night. The bike idles beautifully but wont rev. Instantly dies when you twist the throttle! Has the GYTR exhaust also but that is it for mods.
Put on the carby from the kit which obviously had the jets already installed but also came with a couple of spare sizes. WHat should I be running?

Any ideas why it would die when the throttle is twisted? Seams to clear itself if you pin it and wait!

Any help would be great as the Yamaha dealer just shrugged his shoulders!!

hpiguy · 03-23-2007, 05:42 AM

You gotta love those stealerships huh? I guess he just wants you to come down and pay their ridiculous labor rates for them to sort it out for you. I'm no expert but it sounds like it's starving for fuel. Try raising the needle in the clip, and richen the air screw. If that doesn't work, try the next biggest main jet.

digger437 · 03-23-2007, 07:19 AM

my kit had a small hesitation when getting on it after installing all the above items except I have a DrD. Pipe. Put in bigger main and richen air screw and all was cleaned up. It was too lean.

boost13 · 03-24-2007, 12:23 AM

thanks guys. Will try again tomorrow.

Joeyboy · 03-24-2007, 08:44 AM

I had to go with a bigger jet and adjust the neddle hiegt, thing runs like a champ now

digger437 · 03-27-2007, 06:26 PM

Well now mine is not running, I think I need to check the gap on my valves, won't start.

digger437 · 03-31-2007, 09:27 AM

Checked gaps last night and they were too tight. Common problem after a bbk break in, set them to the settings in the manual ans she fired right up

gav · 04-21-2008, 03:22 AM

i installed my kit and the bike wont start

gav · 05-17-2008, 08:27 PM

can anyone on here get a gytr intake manifold if so please let me know

TUNINGPITBIKE · 05-18-2008, 09:58 AM

do you use a GYTR foam filter??? On the 88cc Kitaco i have the carb with 87.5 main jet,stock slow jet and circlip needle is on the bottom.....sometimes seem miss gas but normally works good

03-23-2007, 05:30 AM	#1 (permalink)
boost13 PM Newbie Join Date: Jul 2006 Location: Perth, Western Australia Posts: 3	problems with GYTR big bore kit I put the GYTR kit into my kids TTR50 last night. The bike idles beautifully but wont rev. Instantly dies when you twist the throttle! Has the GYTR exhaust also but that is it for mods. Put on the carby from the kit which obviously had the jets already installed but also came with a couple of spare sizes. WHat should I be running? Any ideas why it would die when the throttle is twisted? Seams to clear itself if you pin it and wait! Any help would be great as the Yamaha dealer just shrugged his shoulders!!

04-21-2008, 03:22 AM	#8 (permalink)
gav 1st Gear Member Join Date: Jan 2008 Location: sydney australia Posts: 135	Re: problems with GYTR big bore kit i installed my kit and the bike wont start

05-17-2008, 08:27 PM	#9 (permalink)
gav 1st Gear Member Join Date: Jan 2008 Location: sydney australia Posts: 135	Re: problems with GYTR big bore kit can anyone on here get a gytr intake manifold if so please let me know

05-18-2008, 09:58 AM	#10 (permalink)
TUNINGPITBIKE 1st Gear Member Join Date: Jan 2008 Location: Italy Posts: 116	Re: problems with GYTR big bore kit do you use a GYTR foam filter??? On the 88cc Kitaco i have the carb with 87.5 main jet,stock slow jet and circlip needle is on the bottom.....sometimes seem miss gas but normally works good

03-23-2007, 05:42 AM	#2 (permalink)
hpiguy 2nd Gear Member Join Date: Apr 2006 Location: North Carolina Posts: 939	You gotta love those stealerships huh? I guess he just wants you to come down and pay their ridiculous labor rates for them to sort it out for you. I'm no expert but it sounds like it's starving for fuel. Try raising the needle in the clip, and richen the air screw. If that doesn't work, try the next biggest main jet.

03-23-2007, 07:19 AM	#3 (permalink)
digger437 1st Gear Member Join Date: Jan 2007 Location: Wisconsin Rapids, WI Posts: 140	my kit had a small hesitation when getting on it after installing all the above items except I have a DrD. Pipe. Put in bigger main and richen air screw and all was cleaned up. It was too lean.

03-24-2007, 12:23 AM	#4 (permalink)
boost13 PM Newbie Join Date: Jul 2006 Location: Perth, Western Australia Posts: 3	thanks guys. Will try again tomorrow.

03-24-2007, 08:44 AM	#5 (permalink)
Joeyboy 1st Gear Member Join Date: Apr 2006 Location: CT Posts: 220	I had to go with a bigger jet and adjust the neddle hiegt, thing runs like a champ now

03-27-2007, 06:26 PM	#6 (permalink)
digger437 1st Gear Member Join Date: Jan 2007 Location: Wisconsin Rapids, WI Posts: 140	Well now mine is not running, I think I need to check the gap on my valves, won't start.

03-31-2007, 09:27 AM	#7 (permalink)
digger437 1st Gear Member Join Date: Jan 2007 Location: Wisconsin Rapids, WI Posts: 140	Checked gaps last night and they were too tight. Common problem after a bbk break in, set them to the settings in the manual ans she fired right up

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