Project Yamaha TTR 230 Dirtbike More Questions
Super Hunky has finished building his, but the questions just keep pouring in
SUBJECT: THE ELUSIVE PILOT JET
We have been to 6 different Yamaha shops and can not find
43f-14342-19 #38 Jet, they have no idea what we are talking about and
act as if we are speaking a foreign language....please help
Post Falls, ID
Contact: Mikuni American Corporation
8910 Mikuni Avenue
Northridge, CA 91324-3496
Tel: (818) 885-1242
Fax: (818) 993-6877 or www.mikuni.com
Or simply go to a good carb shop and have the 36 reamed out to a 38.
SUBJECT: HIGH REVS
I just recently purchased an 07 ttr 230. it has really low miles and runs perfect except sometimes it just starts reving really high then dies. I think i need to reset the floats in the carb. Is this common with these bikes? Do you have any other advice of what I should do?
Santa Barbara, CA
Nope, it's not common. I would first check for an air leak, possibly in the rubber manifold. This would contribute to high revs at random times.
SUBJECT: GEARING IT UP
I have a ttr230 all i did was the back sproket from a 49 to a
46 and the bike gives ayou a better responce and also for long run you
can feel your self going faster..... i just want a better suspention....
biger tank..... and front light for night life.....
San Diego, CA
By going down three teeth on the rear, it was almost the same as one extra tooth on the countershaft sprocket. If you really want to see a difference, try the stock rear sprocket and go up two teeth on the c/s sprocket like we did on our project bike. We plan to do some lights later in the project series.
SUBJECT: TIRE CHOICE
I've done the carb mods and the gearing mods and it made my bike a lot better, but every time I get in sand I'm all over the place. I've only been riding ayear or so. What's the deal? Is the bike just bad in the sand or am I doing something wrong?
Simi Valley, CA
There's nothing wrong with the basic handling of your bike, but the stock tires really suck in the sand. Also, when you turn or change direction, do it with the power on. If you turn in sand with the power off, the front end will dig in and plow.
SUBJECT: BACKFIRE SCREEN
There's piece of screen wire kind of thing in the airbox in front of thefilter. When I was cleaning out the airbox and the filter I lost this piece. Is it OK to ride the bike with this out?
That "thing" is a backfire screen and we took ours out. Enough said.