Sputtering at High Speed, TBR7

Bamakojon · 04-21-2022, 12:45 PM

Thanks everyone for the replies! I have replaced the spark plug with an NGK and it did seem to help a bit.

Here's my to-do list:

- Get new air filter
- check for air leaks around carb
- get a mikuni jet kit (and mess with all that)
- check valve gap (cuz really who knows when that was last done)

I would like to re-gear at some point, but there are a few things that I'd like to do first. My brother has a Hawk that he re-geared and has absolutely loved it since doing it. I have also read that upgrading the intake does some pretty good things on these bikes. I don't know how true that is, but it's something I'm curious about.

Thumper · 04-21-2022, 01:53 PM

Yes... Opening up the intake and exhaust both help a lot, as long as you jet the carb (and shim the needle) to match the better flow. It really makes a big difference, from stock. Revs easier, seems more willing, adds a horsepower or two.

04-21-2022, 12:45 PM	#1
Bamakojon Join Date: Apr 2022 Location: Birmingham, AL Posts: 3	Thanks everyone for the replies! I have replaced the spark plug with an NGK and it did seem to help a bit. Here's my to-do list: - Get new air filter - check for air leaks around carb - get a mikuni jet kit (and mess with all that) - check valve gap (cuz really who knows when that was last done) I would like to re-gear at some point, but there are a few things that I'd like to do first. My brother has a Hawk that he re-geared and has absolutely loved it since doing it. I have also read that upgrading the intake does some pretty good things on these bikes. I don't know how true that is, but it's something I'm curious about. __________________ "Stupid it isn't if work it does." - Yoda 2019 Tao Tao TBR7
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04-21-2022, 01:53 PM	#2
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,403	Yes... Opening up the intake and exhaust both help a lot, as long as you jet the carb (and shim the needle) to match the better flow. It really makes a big difference, from stock. Revs easier, seems more willing, adds a horsepower or two.
	0